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id Software LLC (/ɪd/) is an American video game developer based in Richardson, Texas. It was founded on February 1, 1991, by four members of the computer company Softdisk: programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack.

Key Information

id Software made important technological developments in video game technologies for the PC (running MS-DOS and Windows), including work done for the Wolfenstein, Doom, and Quake franchises at the time. id's work was particularly important in 3D computer graphics technology and in game engines that are used throughout the video game industry. The company was involved in the creation of the first-person shooter (FPS) genre: Wolfenstein 3D is often considered to be the first true FPS; Doom is a game that popularized the genre and PC gaming in general; and Quake was id's first true 3D FPS.

On June 24, 2009, ZeniMax Media acquired the company. In 2015, they opened a second studio in Frankfurt, Germany.[2]

History

[edit]

Formation

[edit]

The founders of id Software – John Carmack, John Romero, and Tom Hall – met in the offices of Softdisk based in Shreveport, Louisiana, developing multiple games for Softdisk's monthly publishing, including Dangerous Dave. Along with another Softdisk employee, Lane Roathe, they had formed a small group they called Ideas from the Deep (IFD), a name that Romero and Roathe had come up with.[3] In September 1990, Carmack developed an efficient way to rapidly side-scroll graphics on the PC. Upon making this breakthrough, Carmack and Hall stayed up late into the night making a replica of the first level of the popular 1988 NES game Super Mario Bros. 3, inserting stock graphics of Romero's Dangerous Dave character in lieu of Mario. When Romero saw the demo, entitled Dangerous Dave in Copyright Infringement, he realized that Carmack's breakthrough could have potential. The IFD team moonlighted over a week and over two weekends to create a larger demo of their PC version of Super Mario Bros. 3. They sent their work to Nintendo. According to Romero, Nintendo had told them that the demo was impressive, but "they didn't want their intellectual property on anything but their own hardware, so they told us Good Job and You Can't Do This".[4] While the pair had not readily shared the demo though acknowledged its existence in the years since, a working copy of the demo was discovered in July 2021 and preserved at the Museum of Play.[5]

Around the same time in 1990, Scott Miller of Apogee Software learned of the group and their exceptional talent, having played one of Romero's Softdisk games, Dangerous Dave, and contacted Romero under the guise of multiple fan letters that Romero came to realize all originated from the same address.[6][7] When he confronted Miller, Miller explained that the deception was necessary since Softdisk screened letters it received. Although disappointed by not actually having received mail from multiple fans, Romero and other Softdisk developers began proposing ideas to Miller. One of these was Commander Keen, a side-scrolling game that incorporated the previous work they had done on the Super Mario Bros. 3 demonstration.[8] The first Commander Keen game, Commander Keen in Invasion of the Vorticons, was released through Apogee in December 1990, which became a very successful shareware game. After their first royalty check, Romero, Carmack, and Adrian Carmack (no relation) decided to start their own company.[9] After hiring Hall, the group finished the Commander Keen series, then hired Jay Wilbur and Kevin Cloud and began working on Wolfenstein 3D.[10] id Software was officially founded by Romero, John and Adrian Carmack and Hall on February 1, 1991. The name "id" came out of their previous IFD; Roathe had left the group, and they opted to drop the "F" to leave "id". They initially used "id" as an initialism for "In Demand", but by the time of the fourth Commander Keen game, they opted to let "id" stand out "as a cool word", according to Romero.[3] In September 1991, they relocated to Madison, Wisconsin.[11] Later on April 1, 1992, they relocated to an office in Mesquite, Texas.[12]

The shareware distribution method was initially employed by id Software through Apogee Software to sell their products, such as the Commander Keen, Wolfenstein and Doom games.[9] They would release the first part of their trilogy as shareware, then sell the other two installments by mail order. Only later (about the time of the release of Doom II) did id Software release their games via more traditional shrink-wrapped boxes in stores (through other game publishers).

After Wolfenstein 3D's great success, id began working on Doom. After Hall left the company, Sandy Petersen and Dave Taylor were hired before the release of Doom in December 1993.[10]

The end of the classic lineup

[edit]

Quake was released on June 22, 1996 and was considered a difficult game to develop due to creative differences. Animosity grew within the company and it caused a conflict between Carmack and Romero, which led the latter to leave id after the game's release. Soon after, other staff left the company as well such as Michael Abrash, Shawn Green, Jay Wilbur, Petersen and Mike Wilson.[13] Petersen claimed in July 2021 that the lack of a team leader was the cause of it all. In fact, he volunteered to take lead as he had five years of experience as project manager in MicroProse but he was turned down by Carmack.[14]

ZeniMax Media and Microsoft

[edit]

On June 24, 2009, it was announced that id Software had been acquired by ZeniMax Media (owner of Bethesda Softworks). The deal would eventually affect publishing deals id Software had before the acquisition, namely Rage, which was being published through Electronic Arts.[15] ZeniMax received in July a $105 million investment from StrongMail Systems for the id acquisition, it's unknown if that was the exact price of the deal.[16][17] While the two companies were open to technology sharing, John Carmack ruled out larger changes like having Bethesda use id Tech for The Elder Scrolls, or exchanging IPs to develop Doom RPGs and Fallout first person shooters.[18][19] id Software moved from the "cube-shaped" Mesquite office to a location in Richardson, Texas during the spring of 2011.[20][21]

On June 26, 2013, id Software president Todd Hollenshead quit after 17 years of service.[22] On November 22, 2013, it was announced id Software co-founder and Technical Director John Carmack had fully resigned from the company to work full-time at Oculus VR which he joined as CTO in August 2013.[23][24] He was the last of the original founders to leave the company.

Tim Willits left the company in 2019.[25] ZeniMax Media was acquired by Microsoft for US$7.5 billion in March 2021 and became part of Microsoft Gaming.[26][27]

Company name

[edit]

The company writes its name with a lowercase id, which is pronounced as in "did" or "kid", and, according to the book Masters of Doom, the group identified itself as "Ideas from the Deep" in the early days of Softdisk but that, in the end, the name 'id' came from the phrase "in demand".[28] Disliking "in demand" as "lame", someone suggested a connection with Sigmund Freud's psychological concept of id, which the others accepted.[10] Evidence of the reference can be found as early as Wolfenstein 3D with the statement "that's id, as in the id, ego, and superego in the psyche" appearing in the game's documentation. Prior to an update to the website, id's History page made a direct reference to Freud.[29]

Key employees

[edit]
  • Kevin Cloud – Artist (1992–2006), executive producer (2007–present)
  • Donna Jackson – Office manager / "id mom" (1994–present)[30][31]
  • Marty Stratton – Director of Business Development (1997–2006), executive producer (2006–present),[32] studio director (2019–present)
  • Hugo Martin – Creative director (2013–present)[33]

Former key employees

[edit]

Arranged in chronological order:

  • Tom Hall – Co-founder, game designer, level designer, writer, creative director (1991–1993). After a dispute with John Carmack over the designs of Doom, Hall was forced to resign from id Software in August 1993. He joined 3D Realms soon afterwards.
  • Bobby Prince – Music composer (1991–1994). A freelance musician who went on to pursue other projects after Doom II.
  • Dave Taylor – Programmer (1993–1996). Taylor left id Software and co-founded Crack dot Com.
  • John Romero – Co-founder, game designer, programmer (1991–1996). Romero resigned on August 6, 1996.[34] He established Ion Storm along with Hall on November 15, 1996.
  • Michael Abrash – Programmer (1995–1996). Returned to Microsoft after the release of Quake, but eventually worked with Carmack again at Reality Labs.
  • Shawn Green – Software support (1991–1996). Left id Software to join Romero at Ion Storm.
  • Jay Wilbur – Business manager (1991–1997). Left id Software after Romero's departure and joined Epic Games in 1997.
  • Sandy Petersen – Level designer (1993–1997). Left id Software for Ensemble Studios in 1997.
  • Mike Wilson – PR and marketing (1994–1997). Left id Software to become CEO of Ion Storm with Romero. Left a year later to found Gathering of Developers and later Devolver Digital.
  • American McGee – Level designer (1993–1998). McGee was fired after the release of Quake II. He joined Electronic Arts and created American McGee's Alice.
  • Adrian Carmack – Co-founder, artist (1991–2005). Carmack was forced out of id Software after the release of Doom 3 because he would not sell his stock at a low price to the other owners.[35] Adrian sued id Software and the lawsuit was settled during the Zenimax acquisition in 2009.[36]
  • Todd Hollenshead – President (1996–2013) Left id Software on good terms to work at Nerve Software.
  • John Carmack – Co-founder, technical director (1991–2013). He joined Oculus VR on August 7, 2013, as a side project, but unable to handle two companies at the same time, Carmack resigned from id Software on November 22, 2013, to pursue Oculus full-time, making him the last founding member to leave the company.
  • Tim Willits – Level designer (1995–2001), creative director (2002–2011), studio director (2012–2019).[37] He is now the chief creative officer at Saber Interactive.[38]
  • Robert Duffy – Chief Technology Officer (1998–2024).[39]

Timeline

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Game development

[edit]

Technology

[edit]
Co-founder John Carmack at the 2010 GDC

Starting with their first shareware game series, Commander Keen, id Software has licensed the core source code for the game, or what is more commonly known as the engine. Brainstormed by John Romero, id Software held a weekend session titled "The id Summer Seminar" in the summer of 1991 with prospective buyers including Scott Miller, George Broussard, Ken Rogoway, Jim Norwood and Todd Replogle. One of the nights, id Software put together an impromptu game known as "Wac-Man" to demonstrate not only the technical prowess of the Keen engine, but also how it worked internally.

id Software has developed their own game engine for each of their titles when moving to the next technological milestone, including Commander Keen, Wolfenstein 3D, ShadowCaster,[40] Doom, Quake, Quake II, and Quake III, as well as the technology used in making Doom 3. After being used first for id Software's in-house game, the engines are licensed out to other developers. According to Eurogamer.net, "id Software has been synonymous with PC game engines since the concept of a detached game engine was first popularized". During the mid to late 1990s, "the launch of each successive round of technology it's been expected to occupy a headlining position", with the Quake III engine being most widely adopted of their engines. However id Tech 4 had far fewer licensees than the Unreal Engine from Epic Games, due to the long development time that went into Doom 3 which id Software had to release before licensing out that engine to others.

Despite his enthusiasm for open source code, Carmack revealed in 2011 that he had no interest in licensing the technology to the mass market. Beginning with Wolfenstein 3D, he felt bothered when third-party companies started "pestering" him to license the id tech engine, adding that he wanted to focus on new technology instead of providing support to existing ones. He felt very strongly that this was not why he signed up to be a game programmer for; to be "holding the hands" of other game developers. Carmack commended Epic Games for pursuing the licensing to the market beginning with Unreal Engine 3. Even though the said company has gained more success with its game engine than id Software over the years, Carmack had no regrets by his decision and continued to focus on open source until his departure from the company in 2013.[41]

In conjunction with his self-professed affinity for sharing source code, John Carmack has open-sourced most of the major id Software engines under the GNU General Public License. Historically, the source code for each engine has been released once the code base is 5 years old. Consequently, many home grown projects have sprung up porting the code to different platforms, cleaning up the source code, or providing major modifications to the core engine. Wolfenstein 3D, Doom and Quake engine ports are ubiquitous to nearly all platforms capable of running games, such as hand-held PCs, iPods, the PSP, the Nintendo DS and more. Impressive core modifications include GZDoom,[42][43] which adds to the Doom engine modern hardware accelerared renderers and a scripting system called ZScript, and was also utilized in the creation of ECWolf for Wolfenstein 3D[44][45] and Raze for the Build engine.[46] Meanwhile DarkPlaces adds stencil shadow volumes into the original Quake engine along with a more efficient network protocol.[47][48] Other projects include Yamagi Quake II,[49] ioquake3,[50][51] and dhewm3,[52] which maintain the goal of cleaning up the source code, adding features and fixing bugs. Even earlier id Software code, namely for Hovertank 3D and Catacomb 3D, was released in June 2014 by Flat Rock Software.[53]

The GPL release of the Quake III engine's source code was moved from the end of 2004 to August 2005 as the engine was still being licensed to commercial customers who would otherwise be concerned over the sudden loss in value of their recent investment.

On August 4, 2011, John Carmack revealed during his QuakeCon 2011 keynote that they will be releasing the source code of the Doom 3 engine (id Tech 4) during the year.[54]

id Software publicly stated they would not support the Wii console (possibly due to technical limitations),[55] although they have since indicated that they may release titles on that platform (although it would be limited to their games released during the 1990s).[56] They continued this policy with the Wii U but for Nintendo Switch, they collaborated with Panic Button starting with 2016's Doom and Wolfenstein II: The New Colossus.

Since id Software revealed their engine id Tech 5, they call their engines "id Tech", followed by a version number.[57] Older engines have retroactively been renamed to fit this scheme, with the Doom engine as id Tech 1.

IMF Music File Format

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IMF ("id music file" or "id's music format") is an audio file format created by id Software for the AdLib sound card for use in their video games.[58] The format is similar to MIDI, in that it defines musical notes, and does not support sampled digital audio for sound effects. IMF files store the actual bytes sent to the AdLib's OPL2 chip, which uses FM synthesis to produce audio output. The format is based on the AdLib command syntax, with a few modifications. Due to the limited features and relatively low sound quality, modern games no longer use IMF music.

A large number of songs in id Software's early games (such as Commander Keen and Wolfenstein 3D) were composed by Bobby Prince in IMF format. Other game developers like Apogee Software also used this format in their games (such as Cosmo's Cosmic Adventure, Duke Nukem II, and Monster Bash).

Linux gaming

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Timothee Besset was responsible for many Linux ports of id Software's games.

id Software was an early pioneer in the Linux gaming market,[59] and id Software's Linux games have been some of the most popular of the platform. Many id Software games won the Readers' and Editors' Choice awards of Linux Journal.[60][61][62][63] Some id Software titles ported to Linux are Doom (the first id Software game to be ported), Quake, Quake II, Quake III Arena, Return to Castle Wolfenstein, Wolfenstein: Enemy Territory, Doom 3, Quake 4, and Enemy Territory: Quake Wars. Since id Software and some of its licensees released the source code for some of their previous games, several games which were not ported (such as Catacomb 3D, Catacomb Abyss, Wolfenstein 3D, Spear of Destiny, Blake Stone: Aliens of Gold, Blake Stone: Planet Strike, Super 3D Noah's Ark, Rise of the Triad, Doom 64, Strife, Heretic, Hexen, Hexen II, Star Trek: Voyager – Elite Force Holomatch, Star Wars Jedi Knight II: Jedi Outcast, Star Wars Jedi Knight: Jedi Academy) can run on Linux and other operating systems natively through the use of source ports. Quake Live also launched with Linux support, although this, alongside OS X support, was later removed when changed to a standalone title.[64]

The tradition of porting to Linux was first started by Dave D. Taylor, with Zoid Kirsch doing some later porting.[65] Since Quake III Arena, Linux porting had been handled by Timothee Besset. The majority of all id Tech 4 games, including those made by other developers, have a Linux client available, the only current exceptions being Wolfenstein and Brink. Similarly, almost all of the games utilizing the Quake II engine have Linux ports, the only exceptions being those created by Ion Storm (Daikatana later received a community port[66]). Despite fears by the Linux gaming community that id Tech 5 would not be ported to that platform,[67] Timothee Besset in his blog stated "I'll be damned if we don't find the time to get Linux builds done".[68] Besset explained that id Software's primary justification for releasing Linux builds was better code quality, along with a technical interest in the platform. However, on January 26, 2012, Besset announced that he had left id.[69]

John Carmack has expressed his stance with regard to Linux builds in the past.[70] In December 2000 Todd Hollenshead expressed support for Linux: "All said, we will continue to be a leading supporter of the Linux platform because we believe it is a technically sound OS and is the OS of choice for many server ops."[71] However, on April 25, 2012, Carmack revealed that "there are no plans for a native Linux client" of id's most recent game, Rage.[72] In February 2013, Carmack argued for improving emulation as the "proper technical direction for gaming on Linux", though this was also due to ZeniMax's refusal to support "unofficial binaries", given all prior ports (except for Quake III Arena, via Loki Software, and earlier versions of Quake Live) having only ever been unofficial.[73] Carmack didn't mention official games Quake: The Offering and Quake II: Colossus ported by id Software to Linux and published by Macmillan Computer Publishing USA.[74]

Despite no longer releasing native binaries, id was an early adopter of Stadia, a cloud gaming service powered by Debian Linux servers, and the cross-platform Vulkan API.[75][76] A Linux version of Doom from 2016 was tested internally,[77] while it and its sequel Doom Eternal can be run using Wine and Proton.[78][79]

Games

[edit]
Main article: List of id Software games

Commander Keen

[edit]
Main article: Commander Keen

Commander Keen in Invasion of the Vorticons, a platform game in the style of those for the Nintendo Entertainment System, was one of the first MS-DOS games with smooth horizontal-scrolling. Published by Apogee Software, the title and follow-ups brought id Software success as a shareware developer. It is the series of id Software that designer Tom Hall is most affiliated with.[citation needed] The first Commander Keen trilogy was released on December 14, 1990.

Wolfenstein

[edit]
Main article: Wolfenstein (series)

The company's breakout product was released on May 5, 1992: Wolfenstein 3D, a first-person shooter (FPS) with smooth 3D graphics that were unprecedented in computer games, and with violent gameplay that many gamers found engaging. After essentially founding an entire genre with this game, id Software created Doom, Doom II: Hell on Earth, Quake, Quake II, Quake III Arena, Doom 3 and Quake 4. Each of these first-person shooters featured progressively higher levels of graphical technology. Wolfenstein 3D spawned a prequel and a sequel: the prequel called Spear of Destiny, and the second, Return to Castle Wolfenstein, using the id Tech 3 engine. A third Wolfenstein sequel, simply titled Wolfenstein, was released by Raven Software, using the id Tech 4 engine. Another sequel, named Wolfenstein: The New Order; was developed by MachineGames using the id Tech 5 engine and released in 2014, with it getting a prequel by the name of Wolfenstein: The Old Blood a year later; followed by a direct sequel titled Wolfenstein II: The New Colossus in 2017.

Doom

[edit]
Main article: Doom (franchise)

Eighteen months after their release of Wolfenstein 3D, on December 10, 1993, id Software released Doom which would again set new standards for graphic quality and graphic violence in computer gaming. Doom featured a sci-fi/horror setting with graphic quality that had never been seen on personal computers or even video game consoles. Doom became a cultural phenomenon and its violent theme would eventually launch a new wave of criticism decrying the dangers of violence in video games. Doom was ported to numerous platforms, inspired many knock-offs, and was eventually followed by the technically similar Doom II: Hell on Earth. id Software made its mark in video game history with the shareware release of Doom, and eventually revisited the theme of this game in 2004 with their release of Doom 3. John Carmack said in an interview at QuakeCon 2007 that there would be a Doom 4. It began development on May 7, 2008.[80] Doom 2016, the fourth installation of the Doom series, was released on Microsoft Windows, PlayStation 4, and Xbox One on May 13, 2016, and was later released on Nintendo Switch on November 10, 2017. In June 2018, the sequel to the 2016 Doom, Doom Eternal was officially announced at E3 2018 with a teaser trailer, followed by a gameplay reveal at QuakeCon in August 2018.[81][82]

Quake

[edit]
Main article: Quake (series)

On June 22, 1996, the release of Quake marked the third milestone in id Software history. Quake combined a cutting edge fully 3D engine, the Quake engine, with a distinctive art style to create critically acclaimed graphics for its time. Audio was not neglected either, having recruited Nine Inch Nails frontman Trent Reznor to facilitate unique sound effects and ambient music for the game. (A small homage was paid to Nine Inch Nails in the form of the band's logo appearing on the ammunition boxes for the nailgun weapon.) It also included the work of Michael Abrash. Furthermore, Quake's main innovation, the capability to play a deathmatch (competitive gameplay between living opponents instead of against computer-controlled characters) over the Internet (especially through the add-on QuakeWorld), seared the title into the minds of gamers as another smash hit.

In 2008, id Software was honored at the 59th Annual Technology & Engineering Emmy Awards for the pioneering work Quake represented in user modifiable games.[83] id Software is the only game development company ever honored twice by the National Academy of Television Arts & Sciences, having been given an Emmy Award in 2007 for creation of the 3D technology that underlies modern shooter video games.[84]

The Quake series continued with Quake II in 1997. However, the game is not a storyline sequel, and instead focuses on an assault on an alien planet, Stroggos, in retaliation for Strogg attacks on Earth. Most of the subsequent entries in the Quake franchise follow this storyline. Quake III Arena (1999), the next title in the series, has minimal plot, but centers around the "Arena Eternal", a gladiatorial setting created by an alien race known as the Vadrigar and populated by combatants plucked from various points in time and space. Among these combatants are some characters either drawn from or based on those in Doom ("Doomguy"), Quake (Ranger, Wrack), and Quake II (Bitterman, Tank Jr., Grunt, Stripe). Quake IV (2005) picks up where Quake II left off – finishing the war between the humans and Strogg. The spin-off Enemy Territory: Quake Wars acts as a prequel to Quake II, when the Strogg first invade Earth. Quake IV and Enemy Territory: Quake Wars were made by outside developers and not id.

There have also been other spin-offs such as Quake Mobile in 2005 and Quake Live, a web browser based modification of Quake III. A game called Quake Arena DS was planned and canceled for the Nintendo DS. John Carmack stated, at QuakeCon 2007, that the id Tech 5 engine would be used for a new Quake game.

Rage

[edit]
Main article: Rage (video game)

Todd Hollenshead announced in May 2007 that id Software had begun working on an all new series that would be using a new engine. Hollenshead also mentioned that the title would be completely developed in-house, marking the first game since 2004's Doom 3 to be done so.[85] At 2007's WWDC, John Carmack showed the new engine called id Tech 5.[86] Later that year, at QuakeCon 2007, the title of the new game was revealed as Rage.[87]

On July 14, 2008, id Software announced at the 2008 E3 event that they would be publishing Rage through Electronic Arts, and not id's longtime publisher Activision.[88] However, since then ZeniMax has also announced that they are publishing Rage through Bethesda Softworks.[89]

On August 12, 2010, during Quakecon 2010, id Software announced Rage US ship date of September 13, 2011, and a European ship date of September 15, 2011.[90] During the keynote, id Software also demonstrated a Rage spin-off title running on the iPhone.[91] This technology demo later became Rage HD. The game was ultimately released in October 2011.[92]

On May 14, 2018, Bethesda Softworks announced Rage 2, a co-development between id Software and Avalanche Studios.

Other games

[edit]
Screenshot of a Commander Keen game, Keen Must Die!
A screenshot from the first episode of Doom

During its early days, id Software produced much more varied games; these include the early 3D first-person shooter experiments that led to Wolfenstein 3D and Doom – Hovertank 3D and Catacomb 3D. There was also the Rescue Rover series, which had two games – Rescue Rover and Rescue Rover 2. Also there was John Romero's Dangerous Dave series, which included such notables as the tech demo (In Copyright Infringement) which led to the Commander Keen engine, and the decently popular Dangerous Dave in the Haunted Mansion. In the Haunted Mansion was powered by the same engine as the earlier id Software game Shadow Knights, which was one of the several games written by id Software to fulfill their contractual obligation to produce games for Softdisk, where the id Software founders had been employed. id Software has also overseen several games using its technology that were not made in one of their IPs such as ShadowCaster, (early-id Tech 1), Heretic, Hexen: Beyond Heretic (id Tech 1), Hexen II (Quake engine), and Orcs and Elves (Doom RPG engine).

Other media

[edit]

id Software has also published novels based on the Doom series Doom novels. After a brief hiatus from publishing, id resumed and re-launched the novel series in 2008 with Matthew J. Costello's (a story consultant for Doom 3 and now Rage) new Doom 3 novels: Worlds on Fire and Maelstrom.

id Software became involved in film development when they oversaw the film adaption of their Doom franchise in 2005. In August 2007, Todd Hollenshead stated at QuakeCon 2007 that a Return to Castle Wolfenstein movie is in development which re-teams the Silent Hill writer/producer team, Roger Avary as writer and director and Samuel Hadida as producer. A new Doom film, titled Doom: Annihilation, was released in 2019, although id itself stressed its lack of involvement.[93]

Controversy

[edit]

id Software was the target of controversy over two of their most popular games, Doom and the earlier Wolfenstein 3D. More recently in 2022, id Software found themselves mired in a controversy concerning libel against Doom Eternal's composer.

Doom

[edit]

Doom was notorious for its high levels of gore[94] and occultism along with satanic imagery, which generated controversy from a broad range of groups. Yahoo! Games listed it as one of the top ten most controversial games of all time.[95]

The game again sparked controversy throughout a period of school shootings in the United States when it was found that Eric Harris and Dylan Klebold, who committed the Columbine High School massacre in 1999, were avid players of the game. While planning for the massacre, Harris said that the killing would be "like playing Doom", and "it'll be like the LA riots, the Oklahoma bombing, World War II, Vietnam, Duke Nukem and Doom all mixed together", and that his shotgun was "straight out of the game".[96] A rumor spread afterwards that Harris had designed a Doom level that looked like the high school, populated with representations of Harris's classmates and teachers, and that Harris practiced for his role in the shootings by playing the level over and over. Although Harris did design Doom levels, none of them were based on Columbine High School.[97]

While Doom and other violent video games have been blamed for nationally covered school shootings, 2008 research featured by Greater Good Science Center[98] shows that the two are not closely related. Harvard Medical School researchers Cheryl Olson and Lawrence Kutner found that violent video games did not correlate to school shootings. The United States Secret Service and United States Department of Education analyzed 37 incidents of school violence and sought to develop a profile of school shooters; they discovered that the most common traits among shooters were that they were male and had histories of depression and attempted suicide. While many of the killers—like the vast majority of young teenage boys—did play video games, this study did not find a relationship between gameplay and school shootings. In fact, only one-eighth of the shooters showed any special interest in violent video games, far less than the number of shooters who seemed attracted to books and movies with violent content.[99]

Wolfenstein 3D

[edit]

As for Wolfenstein 3D, due to its use of Nazi symbols such as the swastika and the anthem of the Nazi Party, Horst-Wessel-Lied, as theme music, the PC version of the game was withdrawn from circulation in Germany in 1994, following a verdict by the Amtsgericht München on January 25, 1994. Despite the fact that Nazis are portrayed as the enemy in Wolfenstein, the use of those symbols is a federal offense in Germany unless certain circumstances apply. Similarly, the Atari Jaguar version was confiscated following a verdict by the Amtsgericht Berlin Tiergarten on December 7, 1994. The Unterhaltungssoftware Selbstkontrolle lifted the outright ban in 2018 in favor of analysing depictions on a case-by-case basis, and the international version of the game was removed from the list of banned titles in 2019.[100][101]

Due to concerns from Nintendo of America, the Super NES version was modified to not include any swastikas or Nazi references; furthermore, blood was replaced with sweat to make the game seem less violent, and the attack dogs in the game were replaced by giant mutant rats. Employees of id Software are quoted in The Official DOOM Player Guide about the reaction to Wolfenstein, claiming it to be ironic that it was morally acceptable to shoot people and rats, but not dogs. Two new weapons were added as well. The Super NES version was not as successful as the PC version.[citation needed] [102]

Soundtrack dispute

[edit]

In May 2020, after the Doom Eternal Original Soundtrack was released,[103] there was a serious backlash to the Doom Eternal OST and accusations of low quality work that did not match composer Mick Gordon's usual standards. On April 19, Gordon confirmed on Twitter that it was not his work,[104] and Marty Stratton subsequently posted on May 20 a 2,500-word open letter[105] on Reddit blaming Gordon for everything that went wrong with the process of creating music for the soundtrack.[104][105] Following this, public outcry against Gordon reached a level where he received explicit death threats and graphic messages of intent to harm him and his family. Gordon's message accounts, servers, and phones were allegedly inundated with abuse to extreme levels, seriously impacting his mental health.[106]

On November 9, 2022, Mick published a 14,000-word article on Medium[107] explaining his side of the story as a defensive rebuttal of the nine outlined accusations in Stratton's post (described as "an extensive series of lies"), substantiated with various forms of evidence including photographs of emails, receipts, and file metadata to verify his claims.[108][106][109] It included claims that Gordon had yet to receive over half of his payment for his work and awards from the soundtrack's nominations at The Game Awards 2020 Stratton had reportedly claimed to deliver on Gordon's behalf; that his name had been listed on the OST's pre-order for weeks before Bethesda had contracted him to work on it just 48 hours before the game's release; Mossholder had been composing an alternate version of the OST as early as August 2019, and in response to request from Gordon's lawyers for Stratton's Reddit post to be removed, Gordon was offered six figures in exchange for a lifetime gag order, but never the possibility of Stratton's defamatory post being removed.[107]

On November 16, 2022, Bethesda released a statement backing Marty Stratton, Chad Mossholder, and everyone in the id software team. Their statement further claimed that they had evidence to rebut Gordon's claims, without releasing mentioned evidence, and expressed concern that his statement enticed harassment and violence towards the team.[110]

People

[edit]

In 2003, the book Masters of Doom chronicled the development of id Software, concentrating on the personalities and interaction of John Carmack and John Romero. Below are the key people involved with id's success.

John Carmack

[edit]
Main article: John Carmack

Carmack's skill at 3D programming is widely recognized in the software industry and from its inception, he was id's lead programmer. On August 7, 2013, he joined Oculus VR, a company developing virtual reality headsets, and left id Software on November 22, 2013.[24]

John Romero

[edit]
Main article: John Romero

John Romero saw the horizontal scrolling demo Dangerous Dave in Copyright Infringement and immediately had the idea to form id Software on September 20, 1990.[111] Romero pioneered the game engine licensing business with his "id Summer Seminar" in 1991 where the Keen4 engine was licensed to Apogee for Biomenace.[112] John also worked closely with the DOOM community and was the face of id to its fans. One success of this engagement was the fan-made game Final DOOM, published in 1996.[113] John also created the control scheme for the FPS, and the abstract level design style of DOOM that influenced many 3D games that came after it.[114] John added par times to Wolfenstein 3D, and then DOOM, which started the phenomenon of Speedrunning.[115] Romero wrote almost all the tools that enabled id Software and many others to develop games with id Software's technology.[116] Romero was forced to resign in 1996 after the release of Quake, then later formed the company Ion Storm. There, he became infamous through the development of Daikatana, which was received negatively from reviewers and gamers alike upon release. Afterward, Romero co-founded The Guildhall in Dallas, Texas,[117] served as chairman of the CPL eSports league,[118] created an MMORPG publisher and developer named Gazillion Entertainment,[118] created a hit Facebook game named Ravenwood Fair that garnered 25 million monthly players in 2011,[119] and started Romero Games in Galway, Ireland in 2015.[120]

Both Tom Hall and John Romero have reputations as designers and idea men who have helped shape some of the key PC gaming titles of the 1990s.

Tom Hall

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Main article: Tom Hall

Tom Hall was forced to resign by id Software during the early days of Doom development, but not before he had some impact; for example, he was responsible for the inclusion of teleporters in the game. He was let go before the shareware release of Doom and then went to work for Apogee, developing Rise of the Triad with the "Developers of Incredible Power". When he finished work on that game, he found he was not compatible with the Prey development team at Apogee, and therefore left to join his ex-id Software compatriot John Romero at Ion Storm. Hall has frequently commented that if he could obtain the rights to Commander Keen, he would immediately develop another Keen title.

Sandy Petersen

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Main article: Sandy Petersen

Sandy Petersen was a level designer for 19 of the 27 levels in the original Doom title as well as 17 of the 32 levels of Doom II. As a fan of H.P. Lovecraft, his influence is apparent in the Lovecraftian feel of the monsters for Quake, and he created Inferno, the third "episode" of the first Doom. He was forced to resign from id Software during the production of Quake II and most of his work was scrapped before the title was released.

American McGee

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Main article: American McGee

American McGee was a level designer for Doom II, The Ultimate Doom, Quake, and Quake II. He was asked to resign after the release of Quake II, and he then moved to Electronic Arts where he gained industry notoriety with the development of his own game American McGee's Alice. After leaving Electronic Arts, he became an independent entrepreneur and game developer. McGee headed the independent game development studio Spicy Horse in Shanghai, China from 2007 to 2016.

References

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Bibliography

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Revisions and contributorsEdit on WikipediaRead on Wikipedia

Id Software

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id Software LLC is an American video game development studio founded on February 1, 1991, in Mesquite, Texas, by programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack, all formerly of Softdisk.[1][2] The company pioneered the modern first-person shooter (FPS) genre with Wolfenstein 3D in 1992, which introduced fast-paced 3D action and maze-like levels, followed by Doom in 1993, whose shareware distribution model and technical innovations in rendering and networking popularized multiplayer "deathmatch" play.[3][4] id Software's proprietary id Tech engines powered these breakthroughs, licensing them to other developers and enabling rapid industry-wide advances in 3D graphics.[5] Subsequent titles like Quake (1996) shifted to fully 3D environments, eschewing 2.5D limitations and fostering esports precursors through online multiplayer.[3] Acquired by ZeniMax Media in 2009 for $150 million, id integrated into Bethesda Softworks' portfolio, which Microsoft purchased in 2021, yet retained creative autonomy for reboots like Doom (2016) and Doom Eternal (2020).[6][7] As of 2025, id continues developing FPS titles, including Doom: The Dark Ages.[8]

Founding and Early Development

Formation and Initial Team

id Software was established on February 1, 1991, by John Carmack, John Romero, Tom Hall, and Adrian Carmack, who had collaborated as contractors and employees at Softdisk's Gamer's Edge division in Shreveport, Louisiana.[9][10] John Carmack served as the primary engine programmer, renowned for his innovations in 2D and later 3D graphics rendering; John Romero contributed programming, level design, and creative direction; Tom Hall led game design with a focus on narrative and mechanics; and Adrian Carmack handled art and animation duties.[9][11] The name "id" derived from truncating "IFD," an earlier project acronym standing for "Ideas from the Deep."[10] Prior to formation, the team grew frustrated with Softdisk's restrictive policies on external projects and limited resources for innovation, prompting them to pursue independent development of a side-scrolling platformer series featuring the character Commander Keen.[12] Carmack's breakthrough in achieving parallax scrolling and smooth animation on MS-DOS systems without dedicated hardware enabled this ambition, allowing PC games to compete with console titles.[12] Operating initially from personal residences in the Dallas–Fort Worth metroplex, the small team lacked formal office space but leveraged remote collaboration and minimal overhead to prototype rapidly.[11] Early business operations were supported by Jay Wilbur, who handled administrative and promotional tasks, while the core creative quartet focused on technical and design work.[12] This lean structure emphasized code efficiency and shareware distribution, setting the stage for id's disruptive model in the industry.[9] By mid-1991, the company had relocated to a modest office in Mesquite, Texas, facilitating closer coordination as development intensified.[13]

Commander Keen and Early Shareware Model

In 1990, John Carmack, John Romero, and Tom Hall, while working at Softdisk Publications in Shreveport, Louisiana, secretly developed the side-scrolling platformer Commander Keen in Invasion of the Vorticons using Carmack's innovative smooth-scrolling engine for EGA graphics, which enabled console-like fluidity on IBM PCs.[12][14] The game starred Billy Blaze, an eight-year-old genius donning a football helmet and ray gun as Commander Keen to thwart alien threats, blending sci-fi adventure with precise platforming mechanics inspired by Nintendo titles.[14] The first episode, "Marooned on Mars," launched on December 14, 1990, under the banner of Ideas from the Deep—the precursor collective to id Software—and distributed as shareware by Apogee Software.[14] Apogee's model offered the opening episode free via bulletin board systems and floppy disks, with Episodes II ("The Earth Explodes") and III ("The Keen Quake") available for $15 each upon registration, incentivizing users to pay for complete access and sequels.[12][14] This approach, refined by Apogee founder Scott Miller, bypassed retail constraints and leveraged early online communities for viral spread. Initial sales exceeded expectations, yielding about $20,000 in the first month—doubling Apogee's prior monthly revenue—and delivering roughly $10,000 in royalties to the developers by January 1991.[14][15] Buoyed by this validation, the team, augmented by artist Adrian Carmack, resigned from Softdisk on February 1, 1991, to establish id Software in Mesquite, Texas, committing fully to independent development.[14] The Vorticons trilogy's triumph demonstrated shareware's efficacy for PC games, enabling direct consumer reach, rapid iteration, and revenue without publisher intermediaries, while id's technical prowess in optimizing for 286 and 386 processors set benchmarks for shareware titles.[14] This early model not only funded id's transition to full-time operations but also foreshadowed their dominance in digital distribution, contrasting with the era's console-centric industry.[12]

Breakthrough Era (1992–1996)

Wolfenstein 3D and FPS Origins

Wolfenstein 3D was developed by id Software over approximately four months in early 1992, marking a shift from their prior 2D platformers like Commander Keen to pseudo-3D action games.[16] The project built on internal prototypes, including the 1991 Catacomb 3-D, which introduced basic first-person 3D navigation and combat in a fantasy setting, but Wolfenstein 3D refined these elements for a World War II-themed shooter featuring protagonist B.J. Blazkowicz escaping a Nazi castle.[17] John Carmack handled core runtime programming for the engine, adapting techniques from the Commander Keen codebase, while John Romero developed tools like the TED5 level editor and asset packers.[18] id Software secured rights from Muse Software to sequel the 1981 top-down game Castle Wolfenstein, reimagining it in first-person with episodic structure: six episodes total, the first released as shareware.[19] The game's engine employed raycasting, a rendering method that cast rays from the player's viewpoint across a 2D grid map to generate perspective-correct, textured vertical walls and floors, enabling smooth 3D-like traversal at 320x200 VGA resolution with 256 colors— a significant advancement over EGA limitations in prior id titles.[20] This tile-based approach prioritized speed on 286/386 PCs, supporting real-time enemy sprites that scaled with distance, basic AI for pursuits and attacks, and interactive elements like doors, elevators, and hidden secrets, all without true polygonal 3D.[18] Weapons included a knife, pistol, machine gun, and chaingun, with health packs and treasures for progression through maze-like levels culminating in boss fights, such as against Mecha-Hitler in Episode 3.[21] Released on May 5, 1992, via Apogee Software's distribution model, the shareware episode drove viral adoption through bulletin board systems, leading id to decline a $2.5 million acquisition offer from Sierra On-Line to retain control and profits.[19] Wolfenstein 3D played a pivotal role in establishing the first-person shooter (FPS) genre, popularizing immersive, fast-paced 3D combat that became the standard for action games into the 1990s and beyond.[22] While precursors existed—such as 1974's Maze War for networked first-person deathmatch or id's own Hovertank 3D (1991) for vehicular shooting—Wolfenstein 3D's on-foot infantry focus, combined with accessible shareware distribution and visceral Nazi-slaying theme, achieved mainstream breakthrough, selling over 200,000 copies by mid-decade and inspiring clones like Blake Stone.[23] It defined FPS conventions including health-based gameplay, keycard doors, ammo scarcity, and episode-based campaigns, directly influencing id's follow-up Doom (1993) and competitors, though its flat-floor limitation and lack of verticality were soon surpassed by binary space partitioning in later engines.[22] The title's success validated PC gaming's potential for 3D titles, shifting industry emphasis from slower, vector-based simulations to real-time rasterization-driven experiences.[24]

Doom Revolution and Engine Innovations

id Software released the shareware version of Doom on December 10, 1993, featuring the first episode available for free distribution via bulletin board systems and early internet services.[25] This model, building on the success of Wolfenstein 3D, allowed rapid dissemination, resulting in an estimated 15-20 million downloads within two years and establishing id's dominance in the emerging first-person shooter genre.[26] The game shifted from Wolfenstein's rigid, maze-like levels to more dynamic environments, emphasizing fast-paced combat against demonic enemies in a sci-fi horror setting on Mars' moons.[27] The *Doom* engine, primarily authored by lead programmer John Carmack, marked a pivotal advancement over the Wolfenstein 3D engine, transitioning from raycasting to a node-based rendering system using binary space partitioning (BSP) trees.[28] This technique divided maps into hierarchical subspaces, enabling efficient visibility determination and supporting variable floor and ceiling heights within sectors, which allowed for multi-level designs, stairs, and overhangs without true 3D polygons. Additional features included sloped lighting gradients for depth perception, sprite-based enemies with rotational animations, and hardware-accelerated texture mapping on PCs with VGA graphics, achieving 35 FPS on a 33 MHz 386 processor.[28] These optimizations prioritized performance over full 3D geometry, making the engine highly portable across platforms like MS-DOS, Macintosh, and consoles. Doom revolutionized multiplayer gameplay by integrating deathmatch mode as a core feature, supporting up to four players over local area networks with split-screen options, which fostered competitive play and modding communities through editable WAD files.[26] The engine's modularity encouraged user-generated content, including custom levels and total conversions, influencing the genre's emphasis on speed, accessibility, and extensibility.[27] By April 1994, the full commercial release sold over 2 million copies, cementing Doom's role in popularizing the FPS formula of visceral action and technological showcase.[25]

Quake and Multiplayer Pioneering

Quake, released by id Software on June 22, 1996, represented a technical leap in first-person shooter design through its id Tech 2 engine, which enabled true 3D polygonal rendering for both environments and player models, replacing the 2.5D sprite approximations of prior titles like Doom.[29][30] This shift allowed for complex geometry, sloped surfaces, and dynamic lighting, with the engine supporting hardware-accelerated OpenGL rendering in later updates to enhance performance on period hardware.[31] The single-player campaign featured Lovecraftian horror elements across four episodes, but Quake's architecture emphasized modifiability, with QuakeC scripting facilitating community-driven expansions from launch.[32] Quake pioneered robust multiplayer integration as a core feature, building on Doom's deathmatch but implementing a client-server model that supported up to 16 players over LAN or TCP/IP networks, enabling scalable online sessions without peer-to-peer limitations.[31] This networking approach minimized desynchronization issues through server-authoritative simulation, laying groundwork for reliable internet-based competitive play in an era dominated by dial-up modems.[33] Modes included cooperative play and free-for-all deathmatches, with rocket jumps and strafe mechanics emerging as staples of high-skill movement, influencing subsequent arena shooters.[34] In December 1996, id Software issued QuakeWorld, a dedicated multiplayer patch that decoupled client and server executables while optimizing netcode for low-bandwidth conditions, incorporating client-side prediction to compensate for 100-200 ms latencies typical of 28.8 kbps connections.[35][33] This update introduced reliable ordered messaging and reduced bandwidth usage by prioritizing movement deltas over full state snapshots, sustaining viable online competition and spawning organized ladders with global rankings until 1997.[36] Quake's multiplayer ecosystem spurred mods like Capture the Flag variants and Team Fortress, fostering early esports precedents through clan-based tournaments and third-party servers that hosted thousands of concurrent players by 1997.[37]

Internal Transitions and Challenges (1997–2009)

Key Departures and Leadership Shifts

In the aftermath of Quake's 1996 release, id Software experienced a pivotal leadership shift with the departure of co-founder and lead designer John Romero, who was fired amid conflicts over work ethic and project direction, fundamentally altering the studio's creative dynamics as it entered the late 1990s.[38][39] This vacuum was filled by internal promotions and external hires, including Todd Hollenshead, who joined as CEO in 1996 and guided business strategy through Quake II's development and licensing deals, emphasizing engine technology over expansive level design.[40][41] Tim Willits, a longtime level designer since Quake, emerged as creative lead, directing design for Quake II (1997) and Quake III Arena (1999), which shifted focus toward multiplayer arenas and away from Romero-era single-player storytelling.[42][43] Level designer Sandy Petersen, known for contributions to Quake's Lovecraftian elements, departed in June 1997 for Ensemble Studios, citing internal tensions during the Quake era that contributed to a broader talent exodus.[44] Business manager Jay Wilbur also left in 1997 following Romero's exit, joining Epic Games and further streamlining id's operations under Hollenshead's oversight.[45] These changes stabilized the company but introduced challenges in maintaining the rapid innovation of earlier years, with John Carmack retaining primary control over engine development amid a more hierarchical structure. By the mid-2000s, additional fractures emerged, notably with co-founder and artist Adrian Carmack's ouster in September 2005, which sparked a lawsuit alleging id owed him substantially more than a $20 million buyout offer tied to his equity share.[46] The dispute, rooted in disagreements over compensation and role post-Doom 3, highlighted growing tensions between creative founders and business priorities as id pursued larger-scale projects like the id Tech 4 engine. Artist Kevin Cloud, who had collaborated with Adrian Carmack since 1992, transitioned to executive producer around 2007, assuming oversight of production to fill the artistic leadership gap.[47] These shifts presaged id's 2009 acquisition by ZeniMax Media, reflecting a evolution from founder-driven autonomy to corporate alignment while preserving Carmack's technical influence until later years.

Post-Quake Projects and Engine Iterations

Following the release of Quake in 1996, id Software produced Quake II, a first-person shooter released on December 9, 1997, that introduced the id Tech 2 engine with enhancements including colored lightmaps for more realistic illumination, support for larger levels, and curved surface geometry via a patch-based system.[48][49] The engine built on Quake's foundation by optimizing for hardware acceleration via OpenGL, enabling smoother performance on period PCs with 3D accelerators like 3dfx Voodoo cards, and facilitating multiplayer over TCP/IP networks with up to 16 players.[24] id Tech 2's advancements allowed for greater artistic flexibility, as evidenced by Quake II's shift to a structured campaign against cybernetic Strogg invaders on a distant planet, diverging from Quake's Lovecraftian themes while emphasizing AI-driven enemies.[50] The engine's modifiability spurred community expansions, such as Action Quake 2, which adapted it for realistic tactical shooters.[51] Subsequently, id Software released Quake III Arena on December 2, 1999, prioritizing competitive multiplayer in arena-style maps over single-player narrative, powered by the id Tech 3 engine.[52] This iteration introduced skeletal animation for character models using MD5 formats, a robust shader system for real-time effects like specular highlights, and improved networking with prediction-based interpolation to reduce latency in online matches supporting up to 16 participants.[24][51] id Tech 3's efficiency on low-end hardware—requiring only a Pentium II processor and 64 MB RAM—fostered its widespread licensing, underpinning titles like Return to Castle Wolfenstein (developed by Gray Matter Interactive with id oversight, released November 19, 2001) for occult-Nazi themed campaigns blending stealth and shooting.[53] By the early 2000s, id Software concentrated on technological reinvention, debuting id Tech 4 with Doom 3 on August 3, 2004, which emphasized horror elements through a single-light-source-per-area design generating unified dynamic shadows via stencil buffering.[54][5] The engine integrated physics simulation for ragdoll effects and debris.[24] Doom 3's Mars research facility setting revisited the original Doom's demonic invasion but with restricted visibility and jump-scare audio cues to heighten tension.[55] id Tech 4's licensing expanded id's influence without full development overhead; Raven Software used it for Quake 4 (released October 18, 2005), continuing the Strogg war with squad-based mechanics and cybernetic transformation sequences, while Splash Damage adapted a modified version for Enemy Territory: Quake Wars (released September 28, 2007), a class-based objective shooter pitting humans against Strogg in large-scale battles supporting 24-on-24 multiplayer.[56][57] These projects highlighted id's pivot to engine-centric output amid resource constraints, with Tech 4's open-source release in 2005 under GPL enabling further derivatives like fan mods and ports.[51] By 2009, id Tech 4 powered over a dozen commercial titles, underscoring its commercial viability despite id's smaller team size compared to rivals.[5]

Corporate Acquisitions and Modern Phase (2009–Present)

ZeniMax Acquisition and Bethesda Integration

In 2009, ZeniMax Media, the parent company of Bethesda Softworks, acquired id Software in a transaction completed on June 24.[58][59] The deal provided id with financial stability and access to ZeniMax's publishing resources while preserving its operational independence as a development studio focused on first-person shooter titles.[60] id's leadership, including technical director John Carmack and chief executive officer Todd Hollenshead, signed long-term employment agreements and retained control over day-to-day decisions.[61] Post-acquisition, Bethesda Softworks assumed publishing duties for id's upcoming projects, marking a shift from id's prior self-publishing model and external partnerships.[62] This integration aligned id's output—such as the 2011 release of RAGE, developed on id Tech 5—with Bethesda's portfolio, enabling broader distribution and marketing support under the ZeniMax umbrella.[63] Existing publishing commitments for id titles remained unaffected, ensuring continuity for ongoing contracts.[60] The structure emphasized autonomy over deep technical or creative merging, as id continued iterating on its proprietary id Tech engines separately from Bethesda Game Studios' focus on open-world RPGs like The Elder Scrolls series. ZeniMax's oversight facilitated resource sharing in areas like global operations, exemplified by id's 2015 expansion to a secondary studio in Frankfurt, Germany, but did not alter id's core engineering-driven culture.[62] This arrangement supported id's development of high-profile sequels, including reboots in the Doom and Wolfenstein franchises, published through Bethesda channels.[61]

Microsoft Ownership and Resource Expansion

Microsoft completed its acquisition of ZeniMax Media, including id Software, on March 9, 2021, for $7.5 billion, integrating the studio into Xbox Game Studios under the Microsoft Gaming division.[64][65] This move provided id Software with access to Microsoft's broader ecosystem, including enhanced cloud infrastructure via Azure for potential scalability in multiplayer features and distribution through Xbox Game Pass, where titles like Doom Eternal became available on day one post-integration.[65] Under Microsoft ownership, id Software pursued targeted hiring in late 2021, posting vacancies for roles supporting a "long-running iconic action FPS" project, signaling intent to bolster development capacity for ongoing franchises such as Doom or Quake.[66] The studio leveraged this period to complete Doom Eternal's The Ancient Gods DLC expansions in 2020–2021, transitioning into full Microsoft oversight, and collaborated with other Xbox studios like MachineGames and external partners such as Nightdive Studios on remasters, including the August 2024 rerelease of Doom + Doom II.[67] These efforts benefited from Microsoft's publishing muscle via Bethesda Softworks, enabling wider platform reach and marketing support, though id maintained its historically lean team structure, estimated at around 150–300 employees with no verified large-scale expansion.[68] By 2025, id Software released Doom: The Dark Ages on May 14, utilizing the new id Tech 8 engine optimized for current-generation hardware, demonstrating sustained technical innovation amid Microsoft's resources for high-fidelity production.[69] However, broader ZeniMax-wide challenges, including July 2025 layoffs affecting 164 positions and a November 2024 strike by unionized workers protesting bargaining practices, highlight tensions in resource allocation under Microsoft, potentially constraining studio growth despite acquisition promises of investment in content and infrastructure.[70][71]

Recent Releases and Ongoing Projects (up to 2025)

In March 2020, id Software released Doom Eternal, a fast-paced first-person shooter sequel to the 2016 Doom reboot, featuring expanded multiplayer modes, a campaign emphasizing aggressive combat mechanics, and the id Tech 7 engine for enhanced rendering and destruction effects.[72] The game sold over 3 million copies in its first week and received critical acclaim for revitalizing the series' core "rip and tear" gameplay loop. A year-one pass added two DLC campaigns, The Ancient Gods – Part One in October 2020 and Part Two in March 2021, introducing narrative expansions with new demons and weapons while maintaining single-player focus. Following a period of engine refinement and integration under Microsoft ownership after the 2021 ZeniMax acquisition, id Software announced Doom: The Dark Ages at the Xbox Games Showcase on June 9, 2024, positioning it as a prequel set in a medieval-inspired hellish war.[73] The title launched on May 15, 2025, for PlayStation 5, Windows, and Xbox Series X/S, with day-one availability on Xbox Game Pass, featuring the Doom Slayer wielding new tools like a shield and dragon companion alongside traditional arsenal upgrades.[69] It emphasizes vehicular combat and large-scale battles, powered by an updated id Tech engine iteration supporting 4K resolution and ray tracing.[74] At QuakeCon 2025 on August 7, id Software surprise-released an enhanced bundle of Heretic + Hexen, including cross-platform multiplayer, mod support, and quality-of-life updates to the 1990s fantasy shooters originally powered by id's early engines.[75] This ports the titles to modern hardware while preserving inventory-based magic systems and hub-world progression, developed in collaboration with Nightdive Studios.[76] As of August 2025, id Software has initiated development on an unannounced first-person shooter, evidenced by job listings seeking programmers experienced in FPS gameplay features, potentially reviving the Quake series or introducing a new intellectual property beyond the Doom franchise.[77] No further details on scope, engine, or timeline have been disclosed, reflecting the studio's focus on rapid iteration post-Dark Ages launch.[78]

Technological Contributions

id Tech Engine Series

The id Tech series consists of proprietary game engines developed by id Software, each iteration building on prior advancements in 3D graphics rendering, physics simulation, and hardware optimization to enable high-performance gameplay in first-person shooters. Initially unnamed and referred to by the games they powered, the engines received official "id Tech" designations starting with id Tech 5 in 2011, with retroactive labeling applied to earlier versions. These engines emphasized efficient use of limited hardware resources, innovative visibility culling techniques, and modular licensing to third-party developers, influencing titles beyond id's portfolio.[24] id Tech 1, released with Doom on December 10, 1993, introduced binary space partitioning (BSP) trees for rapid scene rendering, allowing texture-mapped walls, multi-level floors and ceilings, and 2D sprite-based enemies in a pseudo-3D environment. Developed primarily by John Carmack, it optimized for MS-DOS systems with software rendering, achieving 35 frames per second on 486 processors through sector-based visibility determination and negated z-buffering. The engine powered licensees like Heretic (1994) and Hexen (1995), demonstrating its portability to ports such as Doom for PlayStation in 1995.[24] id Tech 2, debuting in Quake on June 22, 1996, and refined for Quake II in 1997, shifted to fully 3D polygonal geometry with vertex arrays and curved surfaces via Catmull-Clark subdivision surfaces, supported by OpenGL for hardware acceleration. Carmack's implementation included precomputed lightmaps and client-server networking for multiplayer, enabling 30-60 FPS on Pentium-era hardware. Licensed widely, it underpinned Half-Life (1998) and Sin (1998), with its QuakeWorld protocol influencing competitive online gaming.[24] id Tech 3, launched with Quake III Arena on December 2, 1999, added spline-based curved surfaces, multitexturing shaders, and the fast inverse square root algorithm for normalized vector calculations, enhancing lighting and special effects. It supported MD3 model format for animated characters and cubic environment mapping, running at high frame rates on GeForce 256 GPUs. As one of the most licensed id engines, it drove Return to Castle Wolfenstein (2001) and early Call of Duty titles, with its arena-shooter codebase fostering modding communities.[24] id Tech 4, powering Doom 3 on August 3, 2004, focused on per-pixel lighting and dynamic shadows via stencil shadow volumes, alongside normal and specular mapping for detailed surfaces without excessive polygons. Carmack's design integrated unified lighting and shadowing in a single pass, using mega-textures for seamless terrain, though it prioritized graphical fidelity over frame rates on Xbox-era consoles. Licensing extended to Prey (2006) and Quake 4 (2005), but adoption was limited due to performance demands on CPUs. id Tech 5, introduced in Rage on October 4, 2011, pioneered virtual texturing with mega-textures spanning gigabytes, loaded on-demand to minimize memory usage, complemented by high-dynamic-range (HDR) lighting and volumetric effects. Developed under Carmack's oversight before his 2013 departure, it targeted cross-platform play but faced criticism for texture pop-in on PCs. Internal use continued in Wolfenstein titles by MachineGames, though external licensing remained selective.[24] id Tech 6, utilized in the 2016 Doom reboot released May 13, 2016, refined mega-texturing with temporal anti-aliasing incorporating motion vectors for smoother visuals, emphasizing rasterization over ray tracing for 60+ FPS on mid-range hardware. Post-Carmack, the engine reused his codebase for occlusion culling and particle effects, supporting Vulkan API for efficient multi-threading. It powered Wolfenstein II: The New Colossus (2017) and demonstrated scalability in id's fast-paced combat design.[24] id Tech 7, debuting with Doom Eternal on March 20, 2020, adopted Vulkan exclusively for parallel rendering pipelines, enabling 10 times higher geometric detail and destructible demon models through multi-threaded asset streaming. Features included ray-traced reflections, DLSS integration for NVIDIA hardware, and optimized traversal for complex levels, achieving stable 60 FPS on PS4/Xbox One while scaling to 8K on PCs. Licensed to MachineGames for Indiana Jones and the Great Circle (2024), it prioritized CPU efficiency amid id's integration into larger Bethesda projects.[24]
Engine VersionInitial Release YearDebut GameNotable Licensees
id Tech 11993DoomHeretic, Hexen
id Tech 21996QuakeHalf-Life, Sin
id Tech 31999Quake III ArenaCall of Duty, Return to Castle Wolfenstein
id Tech 42004Doom 3Prey, Quake 4
id Tech 52011RageWolfenstein series (MachineGames)
id Tech 62016Doom (2016)Wolfenstein II
id Tech 72020Doom EternalIndiana Jones and the Great Circle

Linux Porting and Open-Source Influences

id Software initiated Linux support for its games early in the platform's history, beginning with a port of Doom developed by programmer Dave Taylor in 1994, initially for X11 on September 9 and later for SVGAlib on December 9, with the last official binaries provided on October 13, 1996.[79] This made Doom the first id title available on Linux, predating widespread commercial interest in the operating system for gaming. Subsequent ports followed for Quake in 1996, including a shareware Linux version released alongside the full game on June 22, and later for Quake II, Quake III Arena, Return to Castle Wolfenstein, Doom 3, and Quake 4 in the mid-2000s.[80][81] To sustain this effort, id Software employed Timothée Besset (known as TTimo) starting around 2001, who became the primary developer for Linux and some Mac ports of titles including Quake III Arena, Doom 3, and Quake 4, ensuring native performance and compatibility.[82][83] These porting initiatives were bolstered by id Software's practice of releasing engine source code, which enabled community-driven enhancements for Linux. The Doom Linux source was made available on December 23, 1997, for non-commercial use, allowing modifications and further ports.[84] The Quake engine followed on December 21, 1999, under the GNU General Public License (GPL), followed by Quake III Arena on August 19, 2005, also GPL-licensed.[85] Later, Doom 3: BFG Edition source (incorporating id Tech 4 updates) was released on November 26, 2012. These GPL releases permitted free redistribution and derivative works, fostering open-source projects like source ports (e.g., ioquake3 for Quake III) that improved Linux compatibility, added modern features, and extended game longevity on the platform.[86] id Software's engines, designed with cross-platform principles such as OpenGL rendering from Quake onward, inherently supported Linux development workflows, as co-founder John Carmack and the team initially built on Unix-like systems before targeting DOS and Windows.[87] This approach influenced broader open-source gaming, with id Tech code serving as a foundation for engines in titles like Nexuiz and community tools, though commercial Linux porting waned by the late 2000s due to limited market share, as Carmack noted in 2013 that it ranked low among business priorities.[88] Despite this, the early commitments established id as a pioneer in Linux-native gaming and open-source engine accessibility.[89]

Audio and File Format Innovations

id Software's file formats prioritized rapid access and modularity, reflecting hardware constraints of the 1990s and fostering community-driven content creation. The WAD format, introduced with Doom on December 10, 1993, organizes assets into sequentially stored "lumps" identifiable by four-character names, encompassing lumps for maps (e.g., binary tree structures for sectors and linedefs), graphics (e.g., paletted bitmaps), sounds, and metadata; this lump-based design enables lump insertion, deletion, or substitution via offsets in a header directory, underpinning the extraction tools and patching systems that propelled Doom's modding ecosystem.[90] Building on this, Quake, released June 22, 1996, adopted the PAK format as a lightweight archive for distributing models, textures, maps, and other resources; PAK files prepend a header with the "PACK" identifier, followed by a null-terminated directory of file paths and offsets to uncompressed payloads, eschewing compression to minimize decompression latency and emulate a virtual filesystem across multiple archives via concatenation— a pragmatic choice for real-time rendering demands on systems like the Intel 486.[91] Quake's WAD2 variant extended WAD semantics for texture mipmaps and palettes, adjusting directory entry sizes to 16 bytes while retaining compatibility for legacy tools.[92] In audio, id Software devised the IMF (id Music Format) for early DOS titles including Wolfenstein 3D (May 5, 1992) and the shareware Doom (1993), encoding music as raw byte sequences of OPL2 chip register writes (delay values followed by port and data pairs) to drive FM synthesis on AdLib cards; this procedural approach yields compact files—typically under 10 KB per track—by leveraging hardware timbre generation rather than storing waveforms, circumventing storage limits of 1.2 MB floppies while supporting looping via embedded markers.[93] Sound effects in Doom and Quake utilized IMA ADPCM compression within standard WAV containers for digitized samples, achieving roughly 2:1 size reduction over PCM at 8-16 kHz rates to accommodate multichannel 3D spatialization without excessive memory demands.[92] These formats' simplicity facilitated porting and reverse-engineering, influencing subsequent engines' resource handling.

Game Portfolio

Wolfenstein Series

Wolfenstein 3D, developed by id Software and released on May 5, 1992, for MS-DOS platforms, revived the dormant Castle Wolfenstein intellectual property originally created by Muse Software in 1981.[21][94] The game introduced players to Allied spy William "B.J." Blazkowicz navigating procedurally generated maze-like levels within Nazi strongholds, using a raycasting rendering technique adapted from id's earlier titles like Hovertank 3D (1991) to simulate three-dimensional environments on limited 286 and 386 processors.[94] Development commenced in January 1992 with a team expanded to eight members, emphasizing fast-paced combat against guards, dogs, and officers armed with pistols, chainguns, and dynamite, alongside basic puzzles like key collection and elevator navigation.[94] Published under Apogee Software's shareware model, the first of six episodes was distributed freely, propelling sales of full versions and establishing id's reputation for innovative distribution strategies that bypassed traditional retail constraints.[21] In the summer of 1992, id Software produced Spear of Destiny, a prequel expansion to Wolfenstein 3D published by FormGen and released on September 18, 1992.[95] Retaining the core raycasting engine and first-person shooter mechanics, it comprised 21 single-player levels focused on Blazkowicz's mission to seize the biblical Spear of Destiny from a fortified Nazi castle before it reaches Adolf Hitler.[95] The title introduced minor enhancements, such as new enemy variants including mutants and additional boss encounters, while maintaining the episodic structure and treasure-collecting objectives of its predecessor; development reportedly spanned two months, underscoring id's efficient iteration on proven technology.[96] Unlike the shareware release of Wolfenstein 3D, Spear of Destiny launched as a commercial product, further capitalizing on the franchise's momentum.[95] Following these releases, id Software shifted focus to original properties like the Doom series, licensing the Wolfenstein rights to external studios for subsequent entries including Return to Castle Wolfenstein (2001) by Gray Matter Interactive and Wolfenstein (2009) by Raven Software.[97] These later titles incorporated id's proprietary engines—such as id Tech 3 for Return to Castle Wolfenstein and id Tech 4 for the 2009 game—extending the technical legacy of id's foundational work without direct development involvement from the studio.[98] Under ZeniMax Media's ownership after 2009, primary development of modern Wolfenstein installments transitioned to MachineGames, utilizing id Tech engines like id Tech 5 and 6 for games such as Wolfenstein: The New Order (2014).[97] This arrangement allowed id to prioritize core franchises while id's rendering innovations continued to underpin the series' graphical fidelity and performance.[8]

Doom Series

The Doom series consists of first-person shooter games developed primarily by id Software, featuring a lone space marine battling demonic forces invading from Hell. The franchise originated with Doom, released on December 10, 1993, as shareware for MS-DOS, where the first episode was distributed freely to promote full commercial sales.[99] This model facilitated rapid dissemination via bulletin board systems and early internet, resulting in an estimated 10-15 million downloads of the shareware version and 2-3 million paid registrations, fundamentally altering game distribution by demonstrating the viability of digital shareware for high-production titles.[100] The game's innovations, including sector-based 2.5D rendering for pseudo-3D environments, networked multiplayer deathmatch, and modifiable WAD files enabling extensive community content creation, set benchmarks for the FPS genre's pace, level design, and extensibility.[101] Doom II: Hell on Earth, developed by id Software and released on October 10, 1994, expanded the original with 30 new levels, introducing dynamic lighting effects, new enemies like the arch-vile, and weapons such as the super shotgun, while maintaining the shareware distribution for its first episode.[102] The title achieved similar commercial success, solidifying id Software's reputation for iterative improvements in gameplay fluidity and enemy AI behaviors, such as charging mancubi and resurrecting capabilities. id supervised community-driven projects like Master Levels for Doom II (1995) and Final Doom (1996), which featured third-party maps integrated into official releases, further emphasizing the series' modding ecosystem.[103] Shifting toward horror elements, Doom 3, released on August 3, 2004, utilized id Tech 4 for fully dynamic per-pixel lighting and shadows, creating tense atmospheres on a Mars research facility overrun by demons.[104] The game prioritized single-player narrative and flashlight mechanics that forced strategic play, diverging from the originals' arcade-style action, with an expansion Resurrection of Evil co-developed by Nerve Software in 2005 adding the grabber gravity weapon. Following id Software's 2009 acquisition by ZeniMax Media, the studio rebooted the series with Doom (2016), leveraging id Tech 6 for seamless "push-forward" combat emphasizing mobility, glory kills for health/ammo recovery, and high demon counts, released on May 13, 2016.[105] Doom Eternal, released March 20, 2020, built on the reboot with id Tech 7, introducing platforming, destructible demons, and resource management via chainsaw and flamethrower tools, achieving over 3 million units sold in its launch month through intensified verticality and soundtrack-integrated combat pacing.[72] The series continued with Doom: The Dark Ages, a prequel released May 15, 2025, employing id Tech 8 for enhanced neural rendering and path-traced visuals, focusing on medieval-fantasy settings with mecha suits and dragon-riding sequences while preserving core fast-paced shooting.[106]
TitleRelease DateEngineKey Innovations/Features
DoomDecember 10, 1993id Tech 1Shareware model, deathmatch, modding support[99][100]
Doom II: Hell on EarthOctober 10, 1994id Tech 1New weapons (super shotgun), arch-vile enemy[102]
Doom 3August 3, 2004id Tech 4Dynamic lighting, horror focus[104]
Doom (2016)May 13, 2016id Tech 6Glory kills, arena-style combat[105]
Doom EternalMarch 20, 2020id Tech 7Resource loops, platforming elements[72]
Doom: The Dark AgesMay 15, 2025id Tech 8Neural rendering, prequel narrative[106]

Quake Series

The Quake series comprises first-person shooter games developed primarily by id Software, debuting with Quake on June 22, 1996, which pioneered fully three-dimensional polygonal rendering and real-time 3D environments through the id Tech 1 engine, surpassing the sector-based 2.5D limitations of prior titles like Doom.[107][108] The game featured a dark fantasy setting with Lovecraftian elements, including interdimensional portals and eldritch enemies, alongside groundbreaking online multiplayer deathmatch modes that supported up to 16 players and fostered a modding community through released source code tools.[109] Its technical innovations, such as variable terrain heights and axial lighting, enabled complex level geometry and influenced engine licensing to third parties, including early Valve Software projects.[110] Quake II, released December 9, 1997, transitioned to a military science fiction storyline involving human resistance against invading aliens, emphasizing a linear single-player campaign with 42 levels across 11 units and improved enemy behaviors like flanking maneuvers. Powered by the id Tech 2 engine, it introduced curved surfaces via catmull-rom splines, volumetric lighting, and OpenGL support for hardware acceleration, enhancing visual fidelity while maintaining high frame rates in multiplayer sessions supporting up to 64 players.[24] The title's multiplayer refinements, including team-based modes and customizable weapons, solidified Quake's reputation for competitive play, with expansions like The Reckoning and Ground Zero adding new content in 1998.[111] Quake III Arena, issued December 2, 1999, prioritized arena-style multiplayer over narrative, featuring symmetrical maps, respawn mechanics, and AI bots for offline practice, which accelerated the rise of organized esports tournaments through events like QuakeCon.[112] Built on id Tech 3, the engine supported skeletal animation, shader-based effects, and megatextures for seamless environments, achieving 60 frames per second on period hardware and enabling moddable gameplay via .pk3 file formats.[24] Its focus on skill-based combat—emphasizing rocket jumps, strafe-running, and item control—set benchmarks for twitch shooters, with professional circuits awarding over $100,000 in prizes by 2000. Later installments extended the franchise under id Software's oversight or direct development. Quake 4 (2005), crafted by Raven Software using id Tech 4, blended vehicular combat and squad-based elements into the Quake II storyline, achieving sales exceeding 1 million units despite mixed reception for its horror-infused campaign. Enemy Territory: Quake Wars (2007), developed by Splash Damage with id Tech 4, introduced class-based, objective-driven multiplayer for up to 64 players in persistent world scenarios. id Software directly developed Quake Champions (2017), a free-to-play title reviving arena shooter roots with champion abilities, cross-platform play, and seasonal events, maintaining active esports viability into the 2020s.[113] The series' engines collectively licensed to over 50 titles, underscoring id's role in standardizing multiplayer networking protocols like client-server prediction.[24]

Rage and Other Titles

id Software developed the Commander Keen series of side-scrolling platformers, beginning with Commander Keen in Invasion of the Vorticons (Episodes 1–3), released on December 14, 1990, for MS-DOS via shareware distribution through Apogee Software.[114] The game featured an 8-year-old protagonist, Billy Blaze, using a homemade spaceship and pogo stick to thwart aliens, employing smooth parallax scrolling and color animation techniques that exceeded the capabilities of contemporaries like Super Mario Bros..[115] Subsequent episodes, The Alien Mindbender (Episode 4, 1991) and The Universe Is Flooded! (Episode 5, 1991), continued the episodic shareware model, with Aliens Ate My Babysitter! (Episode 6, 1991) concluding the main saga; these titles established id's reputation for accessible, high-quality PC games and pioneered shareware economics, selling hundreds of thousands of copies.[114] Earlier prototypes included Hovertank 3D (April 1991), an overhead vehicular combat game with rudimentary 3D rendering via ray casting, and Catacomb 3-D (November 1991), id's first true first-person perspective title featuring texture-mapped walls and enemies, serving as technological precursors to later FPS innovations without achieving commercial prominence.[3] In 2007, id released Orcs & Elves, a first-person dungeon crawler for Nintendo DS, utilizing id Tech 4 for procedural generation and turn-based combat, which received positive reviews for portability but limited sales due to niche appeal.[116] Rage, id's first original IP since Quake, entered development in 2006 using the new id Tech 5 engine, emphasizing photorealistic graphics via megatextures and an open-world post-apocalyptic setting blending FPS combat, racing, and crafting.[117] Published by Bethesda Softworks following id's 2009 acquisition by ZeniMax Media, it launched on October 4, 2011, for PlayStation 3, Xbox 360, and Microsoft Windows, priced at $60.[118] The PC version suffered launch issues, including driver conflicts causing instability on NVIDIA hardware, attributed to id's focus on console optimization over PC-specific testing.[119] Critical reception was mixed, with praise for visual fidelity and gunplay (e.g., Game Informer scored it 9/10 for evoking id's legacy) but criticism for repetitive missions and underdeveloped driving segments; commercial performance fell short of expectations, though exact figures remain undisclosed by Bethesda, outperforming its 2019 sequel in physical sales amid a shift to digital distribution.[120][121] John Carmack later reflected that prolonged development allowed competitors to surpass its trends, contributing to id's pivot toward rebooting established franchises.[122]

Key Personnel

Founders: Carmack, Romero, Hall, and Adrian Carmack

id Software was founded on February 1, 1991, by John Carmack, John Romero, Tom Hall, and Adrian Carmack, who had previously collaborated on game development projects at Softdisk Publications in Louisiana.[1][12] The quartet left Softdisk to pursue independent game development, initially focusing on shareware releases for MS-DOS systems, with the name "id" derived from their earlier internal project label at Softdisk.[123] John Carmack, born August 20, 1970, served as the primary programmer and technical lead, pioneering adaptive tile refresh algorithms for side-scrolling in Commander Keen (1990) and later advancing raycasting for pseudo-3D in Wolfenstein 3D (1992), which laid the foundation for the studio's engine innovations.[123] His emphasis on efficient, hardware-pushing code enabled the rapid iteration that defined id's early output.[12] John Romero, born October 28, 1967, contributed as a programmer and designer, co-developing the Commander Keen series and shaping level layouts and gameplay mechanics for Wolfenstein 3D and Doom (1993), where his focus on fast-paced action influenced the first-person shooter genre's core loop.[12][124] Tom Hall functioned as creative director and lead designer, providing narrative elements, character concepts, and high-level design for early titles like Commander Keen and Wolfenstein 3D, emphasizing exploratory platforming before shifting to action-oriented structures in later projects.[125][126] Adrian Carmack, born May 5, 1969, and unrelated to John Carmack despite the identical surname, handled lead art responsibilities, producing pixel art, textures, and visual assets for Commander Keen, Wolfenstein 3D, and subsequent releases, which contributed to the games' distinctive aesthetic despite hardware limitations.[127][128]

Long-Term Contributors: Petersen, McGee, and Others

Sandy Petersen joined id Software in 1993, shortly after the release of Wolfenstein 3D, and contributed to level design for Doom (1993), creating multiple maps that incorporated his distinctive style influenced by horror elements from his prior work on tabletop games like Call of Cthulhu.[129] He continued with Doom II: Hell on Earth (1994) and Quake (1996), providing design input that emphasized atmospheric and narrative depth in first-person shooter environments. Petersen's tenure ended around 1997, after which he moved to Ensemble Studios. American McGee began working at id Software in 1994, initially focusing on level design while also contributing to music production, sound effects development, and programming.[130] His credits include map creation for Doom II (1994), Quake (1996), and Quake II (1997), where he helped refine multiplayer deathmatch layouts and integrate audio elements to enhance gameplay immersion.[131] McGee departed id in 1998 to join Electronic Arts, later reflecting on his time there as foundational to his career in creative direction.[130] Other notable long-term contributors included Tim Willits, who joined in 1995 as a level designer and progressed to roles in production and studio direction, overseeing development on multiple Quake expansions, Doom 3 (2004), and later titles like Rage (2011).[132] Willits remained with id through its acquisition by ZeniMax Media in 2009, serving as co-owner prior to the sale and departing after 24 years in 2019.[132] Additional figures such as Todd Hollenshead, who became president in 1996 and managed business operations until 2013, supported the company's growth amid personnel changes.[44] These individuals helped sustain id's technical and creative output during periods of founder departures and internal shifts.

Notable Alumni and Their Impacts

John Carmack left id Software in November 2013 to serve as chief technology officer at Oculus VR, where he focused on optimizing virtual reality systems for low-latency performance and spatial computing.[133] His engineering contributions, including advancements in asynchronous timewarp rendering and predictive tracking, accelerated the viability of consumer VR hardware like the Oculus Rift, facilitating its 2014 acquisition by Facebook for $2 billion and broadening VR's adoption beyond gaming into simulations and training applications.[134] In 2022, Carmack departed Meta (formerly Facebook) to establish Keen Technologies, applying his expertise to artificial general intelligence development and physics-based simulations for aerospace challenges.[135] John Romero exited id Software in 1996 amid internal disagreements over priorities, subsequently co-founding Ion Storm in 1997 to produce high-profile titles using licensed engines.[44] At Ion Storm, he led development of Daikatana (released May 2000), an ambitious first-person shooter spanning multiple historical eras with AI companions and dynamic combat, though prolonged development exceeding three years and technical issues drew criticism for unpolished execution despite innovative level variety.[44] Following Ion Storm's 2001 acquisition by Eidos and his later roles at Midway on projects like the canceled Doom 4 prototype, Romero co-founded Romero Games in 2015, producing retro-inspired shooters such as Sigil (2019), which emphasized intricate enemy encounters and modding support, thereby preserving core FPS design principles in independent development.[136] American McGee departed id Software in 1998 after contributing level design to Quake and its sequel, then partnering with Electronic Arts to create American McGee's Alice (November 2000), a platformer blending action, puzzles, and horror in a dystopian Wonderland setting that critiqued trauma through gothic visuals and melee-focused gameplay.[130] The game earned praise for its atmospheric art and psychological narrative, establishing McGee's signature style of subverting fairy tales into mature experiences and inspiring adaptations like a planned film.[137] This led to Alice: Madness Returns (June 2011), expanding on combinatorial combat and exploration while addressing themes of mental health, further solidifying influences on narrative-driven horror-action hybrids in the industry.[137]

Cultural and Industry Impact

Shaping the FPS Genre

id Software's Wolfenstein 3D, released on May 5, 1992, is widely regarded as the foundational title in the first-person shooter (FPS) genre, introducing core mechanics such as fast-paced, perspective-based corridor combat against enemies in a pseudo-3D environment rendered via raycasting techniques developed by programmer John Carmack.[22] The game established the blueprint for FPS level design, including maze-like layouts with keys, secrets, and boss encounters, which influenced subsequent titles by emphasizing direct confrontation and spatial navigation from the player's viewpoint.[22] Doom, released in December 1993, expanded these foundations by refining the engine for smoother performance, larger environments, and verticality absent in Wolfenstein 3D's flat floors and ceilings, while introducing multiplayer "deathmatch" modes that popularized competitive play.[25] Its shareware distribution model—releasing the first episode for free via bulletin board systems and early internet—enabled viral spread, with millions of downloads driving commercial success and demonstrating digital distribution's potential for FPS games before widespread broadband.[138] This approach not only boosted the genre's accessibility but also normalized modding through editable WAD files, fostering community-driven content creation.[26] Quake, launched on June 22, 1996, marked a pivotal shift to fully polygonal 3D rendering with its id Tech 2 engine, departing from the 2.5D limitations of prior id titles to enable complex geometry, sloped surfaces, and seamless multiplayer over the internet, which accelerated the genre's evolution toward arena-style competition.[139] Carmack's innovations, including binary space partitioning for efficient rendering, allowed for real-time 3D navigation without predefined grids, influencing engine licensing to competitors and setting standards for speed and scalability in FPS development.[31] Collectively, these advancements by id Software prioritized technical performance and player agency, embedding high frame rates, responsive controls, and networked play as hallmarks of the FPS genre.[140]

Commercial Success and Shareware Legacy

id Software's adoption of the shareware model, particularly with Wolfenstein 3D in 1992 and Doom in 1993, propelled the company to unprecedented commercial heights for an independent developer. The first episode of Wolfenstein 3D was distributed freely via bulletin board systems (BBS), resulting in approximately 150,000 registrations by mid-1994, alongside 150,000 retail sales of the standalone expansion Spear of Destiny.[100] Doom, released on December 10, 1993, amplified this success; its shareware version garnered an estimated 10 million downloads within two years, with 2 to 3 million paid registrations for full episodes generating tens of millions in revenue.[100] By April 1998, the U.S. shareware edition alone accounted for 1.36 million units and $8.74 million in sales, per PC Data tracking, underscoring the model's efficacy in converting free users to paying customers.[103] This approach not only funded id's operations but also established the firm as a multimillion-dollar enterprise from a team of fewer than a dozen, with Doom and Doom II combined exceeding 4 million PC sales and over $100 million in revenue from the latter alone.[141] The shareware strategy bypassed traditional retail dependencies, leveraging grassroots distribution through floppy disks, BBS, and early internet connectivity to achieve global reach without publisher intermediaries initially. id's revenues enabled rapid iteration, funding engines like id Tech that powered subsequent hits such as Quake in 1996, which further solidified financial independence before licensing deals with entities like GT Interactive.[142] The shareware legacy of id Software fundamentally altered game distribution paradigms, demonstrating that freemium-like mechanics could drive viral adoption and sustained profitability for niche PC titles. By offering substantial playable content upfront—such as Doom's first episode with nine levels—id encouraged honest evaluations, fostering trust and conversions that traditional demos rarely matched.[143] This model empowered small developers to compete against established publishers, influencing later practices like episodic releases and free-to-play structures, while highlighting the PC's potential for direct-to-consumer sales predating widespread broadband.[144] id's success validated shareware as a viable path to mainstream viability, inspiring countless indie efforts and contributing to the democratization of game development, though it also intensified competition in an era of limited piracy enforcement.[142]

Influence on Game Development Practices

id Software pioneered efficient development practices through small, collaborative teams and rapid iteration. From 1990 to 1995, a core group of fewer than 10 developers, often working in a single room, released 28 titles including the Commander Keen trilogy (developed in three months total) and early Doom prototypes, by eschewing formal prototypes in favor of immediately shippable code refined incrementally.[145] Core principles included prioritizing simple, encapsulated functions; building "bulletproof" engines that defaulted to playable states on errors; investing heavily in custom tools to fix bugs instantly; and maintaining transparent task communication without rigid hierarchies.[145] These methods enabled high output without over-engineering, influencing indie and AAA studios to adopt leaner workflows focused on speed and reliability over exhaustive planning. Technologically, id's id Tech engines set benchmarks for performance optimization and reusability, licensed to third parties and powering games beyond id's portfolio. Innovations spanned ray casting in id Tech 0 for Wolfenstein 3D's pseudo-3D (1992); binary space partitioning trees in id Tech 1 for Doom's efficient visibility culling (1993); full polygonal 3D with OpenGL integration in id Tech 2 for Quake (1996); shader support and curved surfaces in id Tech 3 for Quake III Arena (1999); and later per-pixel lighting with shadow volumes in id Tech 4 for Doom 3 (2004).[24] John Carmack's contributions, such as the fast inverse square root algorithm in id Tech 3, exemplified low-level optimizations that maximized hardware limits, encouraging developers to prioritize computational efficiency and engine modularity.[24] This licensing model, starting prominently with Quake engine variants, monetized technology separately from content, shifting industry norms toward proprietary engines as revenue streams.[142] id's shareware distribution, refined with Doom's 1993 release of its first episode for free, bypassed traditional publishers by exploiting bulletin board systems and early internet sharing, yielding 2 to 3 million shareware copies sold and full version revenues exceeding $100 million by 1995.[100] This viral model legitimized direct-to-consumer digital dissemination, reducing barriers for independent developers and pressuring publishers to embrace episodic or freemium strategies. Complementing this, id released Quake's editing tools and QuakeC scripting language in 1996, fostering a modding ecosystem that birthed modes like Team Fortress and Threewave CTF, which influenced multiplayer design standards and extended titles' commercial viability through community content.[146] By 2003, Quake III alone spawned hundreds of mods, normalizing user-generated extensions and inspiring engines like Source to include built-in mod support.[146]

Controversies and Debates

Violence and Media Moral Panics

id Software's Doom, released on December 10, 1993, featured graphic depictions of demons being dismembered with shotguns and chainsaws, prompting early concerns about video game violence influencing youth behavior. These elements fueled a broader moral panic, with critics arguing the game's first-person perspective simulated real killing.[147] In December 1993, U.S. Senators Joe Lieberman and Herb Kohl convened congressional hearings on video game violence, highlighting titles like Mortal Kombat but extending scrutiny to Doom's shareware distribution, which allowed widespread access without age restrictions. The hearings pressured the industry to adopt self-regulation via the Entertainment Software Rating Board (ESRB) in 1994, rating Doom as "Mature" for intense violence and gore.[148] Despite the outcry, no empirical evidence presented linked Doom to increased real-world aggression. The 1999 Columbine High School shooting intensified scrutiny, as perpetrator Eric Harris referenced Doom in writings and videos, leading media outlets to portray the game as a contributing factor.[149] Lawyer Jack Thompson amplified this narrative, filing lawsuits against id Software in the early 2000s, claiming Doom and similar titles functioned as "murder simulators" that desensitized players to violence.[150] Thompson's campaigns, including calls for bans, gained media traction but repeatedly failed in court due to lack of causal proof.[151] Subsequent research has consistently found no causal connection between playing violent games like Doom and real-life violent behavior. A 2019 University of Oxford study of over 1,000 adolescents showed no association between violent video game engagement and aggressive conduct.[152] The American Psychological Association's 2020 review affirmed insufficient evidence for a direct link, attributing short-term aggression effects to competition rather than violence content.[153] Longitudinal data, including crime rate declines amid rising game popularity since the 1990s, further undermine claims of causation.[154] These findings highlight how media-driven panics often prioritize anecdote over rigorous evidence, despite Doom's role in popularizing immersive shooters without corresponding societal violence spikes.

Business and Legal Disputes

In 1996, tensions escalated between co-founder John Romero and technical director John Carmack over development priorities during the production of Quake. Romero sought to allocate resources to prototype his ambitious project Daikatana alongside Quake's completion, which Carmack and other team members opposed, prioritizing the core engine and game delivery. This disagreement culminated in Romero's dismissal by vote of the other partners on February 12, 1996, shortly after Quake's release, marking a significant fracture in id's founding team and shifting the company's focus toward technology-driven projects under Carmack's leadership.[39] Adrian Carmack, the company's co-founder and lead artist, departed in 2005 amid a dispute over share valuation and buyout terms. After refusing id's offer of approximately $20 million for his equity stake, which he deemed undervalued given the company's assets including the Doom and Quake franchises, Adrian was removed as an employee and director. He filed a lawsuit in September 2005 alleging wrongful termination, breach of fiduciary duty, and undervaluation of his shares, seeking damages exceeding the proposed buyout; the case highlighted internal disagreements on id's worth ahead of potential external investments or sales.[46] id Software's 2009 acquisition by ZeniMax Media for $150 million, structured in installments, later spawned payment disputes involving John Carmack. In March 2017, Carmack sued ZeniMax, claiming the company withheld a final $22.5 million earn-out payment tied to performance milestones from the deal, arguing that id had met or exceeded targets through titles like Rage and engine licensing. The suit was settled in October 2018, with ZeniMax fulfilling its obligations and both parties releasing claims against each other. This litigation overlapped with ZeniMax's broader 2014 lawsuit against Oculus VR, alleging theft of id's virtual reality code—developed by Carmack while employed at id—which ZeniMax claimed entitled it to ownership; a jury awarded ZeniMax $50 million in 2018, though appeals and further disputes extended into 2021 without directly implicating id's operations.[155][156][157]

Internal Conflicts and Industry Perceptions

In 1996, id Software experienced a significant internal rift leading to the departure of co-founder John Romero shortly after the release of Quake. Romero was effectively fired due to disagreements over project direction, including the abandonment of RPG elements in Quake, and perceptions of insufficient work ethic amid his focus on external pursuits like side projects and company expansion ideas.[158][39] He cited no regrets over leaving, subsequently co-founding Ion Storm to pursue ambitious designs like Daikatana, which contrasted with id's tech-centric focus under John Carmack.[38] Adrian Carmack, another co-founder and 41% shareholder, sued id Software in September 2005 after being terminated as an employee and director. He alleged wrongful dismissal for refusing a $20 million share buyout and claimed the company rejected a $90 million Activision acquisition offer for three programs, potentially costing him substantial earnings.[159][46] The dispute highlighted tensions over financial control and strategic decisions post-acquisition talks, with id maintaining the buyout was fair.[160] John Carmack resigned from id Software on November 22, 2013, after nearly 22 years, shifting focus to virtual reality development at Oculus VR rather than continuing game programming at id.[161][162] In his departure memo, he noted id's overstaffing relative to its output, signaling a desire for pursuits beyond traditional game development amid the studio's acquisition by ZeniMax Media in 2009.[163] More recently, composer Mick Gordon alleged in November 2022 that id Software leadership undermined his control over the Doom Eternal (2020) soundtrack due to crunch schedules and creative clashes, paying him only for half the work while using unlicensed stems to complete it.[164] id and Bethesda rejected these claims as distortions, attributing issues to Gordon's delays and equipment problems during relocation, though the dispute fueled fan backlash and harassment against studio executives.[165] Industry perceptions of id Software emphasize its pioneering role in first-person shooters and engine technology, yet note a pattern of high-profile departures reflecting ego-driven dynamics and creative divergences among founders.[166] Observers have critiqued post-Romero output as technologically advanced but narratively uninspired, contributing to views of id as a tech innovator over storytelling, with public image sometimes skewed toward minimal narrative emphasis despite experiential strengths.[167][168] The studio's history of staff turnover, including the "dissipation" of original creative leads, is seen as emblematic of early PC gaming's volatile, founder-centric culture, yet id retained influence through licensing and acquisitions.[44]

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  83. Podcast #9 With Tim Besset: "Street Fighter V's Port is Not Dead"
  84. Doomworld -- 10 Years of Doom
  85. https://github.com/id-software/Quake-III-Arena
  86. id Software - GitHub
  87. idsoftware - Alien Pastures
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  89. id Software: Linux Hasn't Produced Positive Results - Phoronix
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  96. I know it's old as hell, but Wolfenstein 3D: Spear of Destiny ... - Reddit
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  100. The Shareware Scene, Part 5: Narratives of DOOM
  101. id-Software/DOOM: DOOM Open Source Release - GitHub
  102. DOOM II: Hell on Earth - ClassicReload.com
  103. Monsters from the Id: The Making of Doom - Game Developer
  104. Doom 3 - 16 Years Later: An LGR Retrospective - YouTube
  105. DOOM on Steam
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  107. Join us in celebrating 25 years of Quake! - Bethesda.net
  108. The Legendary Quake Is Over 25 Years Old | GOG.COM
  109. Quantifying Quake: How the dark fantasy FPS changed games forever
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  111. Quake II | Official Website - Bethesda.net
  112. Quake III: Arena - IGN
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  118. Shooting-game pioneer id Software aims to be all the 'Rage'
  119. Why Was The PC Launch of Rage Such A "Cluster!@#$"? - Kotaku
  120. Critical Reception: id Software's Rage - Game Developer
  121. 'Rage 2' Is Somehow Selling Way Less Than 'Rage 1' So Far - Forbes
  122. What went wrong with Rage, according to John Carmack - Reddit
  123. Carmack and Romero discuss their favorite id Software projects ...
  124. Starting id Software - John Romero - Lero
  125. Doom co-creator Tom Hall joins Resolution Games
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  128. Where are they now? - Adrian Carmack - Choicest Games
  129. D. J. Butler interviews legendary game designer Sandy Petersen
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  133. John Carmack explains why he left id for Oculus - Game Developer
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  135. https://x.com/ID_AA_Carmack
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  137. American McGee - Game Design Workshop
  138. The Shareware Scene, Part 4: DOOM | The Digital Antiquarian
  139. Tremors: How Quake shook first-person shooters to their core
  140. John Carmack | Biography & Facts | Britannica
  141. Sales | Doom Wiki - Fandom
  142. How id Software Changed Gaming - IGN
  143. The legacy of shareware is everywhere | Eurogamer.net
  144. Shareware's Legacy on Computing: The Model That ... - Tedium
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  149. Let's Enjoy This Wholesome Moral Panic About Violent Video ... - VICE
  150. Jack Thompson still has a grudge - The Verge
  151. The Triumph of Jack Thompson - S.C. - Medium
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  153. APA reaffirms position on violent video games and violent behavior
  154. Video games unlikely to cause real-world violence, experts say - CNN
  155. John Carmack sues ZeniMax for $22.5m from id Software deal
  156. John Carmack: ZeniMax owes me $22.5M as part of 2009 id ...
  157. Legal fight over $22.5m gaming takeover deal - BBC News
  158. Why did Romero leave Id? - Doom General Discussion - Doomworld
  159. id co-founder suing former colleagues - Ars Technica
  160. https://www.wsj.com/articles/SB112785063771153565
  161. John Carmack officially leaves id Software - Game Developer
  162. id Software cofounder John Carmack leaves company - Ars Technica
  163. John Carmack resigns from id Software | GamesIndustry.biz
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