Tyrian (video game)

Tyrian is a vertically scrolling shooter developed by Eclipse Software for MS-DOS and published in 1995 by Epic MegaGames. Tyrian was programmed by Jason Emery, illustrated by Daniel Cook, and its music composed by Alexander Brandon and Andras Molnar. A slightly enhanced version was published in 1999 as Tyrian 2000. The game was re-released as freeware in 2004.

The game is set in the year 20,031. The player takes on the role of Trent Hawkins, a skilled spaceship pilot. While on the planet Tyrian, a hostile drone shoots his best friend, Buce Quesillac. Before dying Buce warns Trent that the drone belonged to the militaristic MicroSol megacorporation. MicroSol has discovered Gravitium (the game's brand of Unobtainium) on Tyrian and seeks to keep it a secret. Now on MicroSol's hit list, Trent manages to secure a small, armed spacecraft and set out to the free world of Savara.

Tyrian follows the conventions of vertically scrolling shooters with forced forward movement. It was developed chiefly as a homage to the works of Compile, particularly their Zanac series.

The player controls a space ship fitted with different weapons (front and back, linked to the same button, and up to two external pods with their own buttons) and other equipment. The game presents a variety of enemies (some flying, some fixed, some on rails) and bosses, with many occurrences of fixed and/or indestructible obstacles. Before the player's starship is destroyed it must take enough damage to exhaust several points of shields (which regenerate over time) and armor.

Tyrian's full game mode features a credit and equipment-buying system, and the shield/armor hit points which are similar to game mechanics in Raptor: Call of the Shadows. The arcade mode has characteristics from coin-op arcade shooters, such as in-game powerups and extra lives.

There are three levels of difficulty to choose from: Easy, Medium, and Hard, as well as the hidden options of Impossible, Suicide, and Lord of the Game. Hard difficulty and above employ enemies with more health as well as fire more bullets per second. Certain hidden levels are only available at hard difficulty, which provide ample opportunities for unique powerups and upgrades. In certain levels, the Hard setting also prevents the player from seeing enemies outside a conical line-of-sight. Upon completion of the game, the player receives a password for one of the several hidden ships, as well as the options for replaying the game at a higher difficulty setting.

The "full story mode" is a single-player mode that features a story-based campaign and ship customization. The story is told through the message cubes that can be collected within and read between levels. Some of these messages cubes are readily available while others need to be obtained by destroying certain enemies in the preceding level. At certain points in the game, the storyline branches and the player is required to pick one branch.

The player's craft is customizable. It can accommodate a front weapon and a rear weapon. Shops can supply a variety of kinetic guns, rayguns, missiles, and bombs for these two slots. While the front weapons are mostly limited to forward arcs, "rear" weapons often come with wider coverage including side and rear shots. Some rear weapons have two selectable fire modes, focusing either mostly forward, or mostly sideways or rearward.