OverClocked ReMix, also known as OC ReMix and OCR, is a non-commercial organization dedicated to preserving and paying tribute to video game music through arranging and re-interpreting the songs, both with new technology and software and by various traditional means. The primary focus of OC ReMix is its website, ocremix.org, which freely hosts over 4,000 curated fan-made video game music arrangements, information on game music and composers, and resources for aspiring artists. In addition to the individual works, called "ReMixes", the site hosts over 70 albums of music, including both albums of arrangements centered on a particular video game, series, or theme, and albums of original compositions for video games. The OC ReMix community created the Super Street Fighter II Turbo HD Remix soundtrack for Capcom in 2008, and began publishing commercially licensed arrangement albums in 2013.

The founder of OverClocked ReMix and its parent company OverClocked ReMix, LLC is David W. Lloyd (a.k.a. djpretzel), who coined the word "ReMix" to refer to distinctive and interpretive arrangements, as opposed to a remix which typically involves less transformative alterations to the original works. Lloyd originally curated all of the submissions to the site, but since 2002 submissions are judged by a panel of community members for quality and originality. The site has been positively received by both critics and video game industry professionals, and several video game composers have submitted their own ReMixes. Multiple OC ReMix contributors have gone on to have professional video game composition careers.

OverClocked ReMix was founded by David W. Lloyd, using the screen name djpretzel, as a video game music hosting website on December 11, 1999. Lloyd, who had just created an arrangement of the title theme from Phantasy Star III: Generations of Doom titled "Legacy", created the "DJ Pretzel's OverClocked ReMix" database as a way to host and share it and other arrangements and remixes of his. The name was taken from OverClocked, a webcomic about playing and emulating video games Lloyd was working on. "ReMix" was a term he invented to distinguish interpretive arrangements from a remix which typically involves less transformative alterations to master recordings. Over the next few months, Lloyd began adding arrangements from other artists.

At the time, there was a mixing scene that focused only on Commodore 64 music, with an electronica emphasis, but I love arranging, and I wanted an outlet where I could hone my skills while encouraging others to branch out and do the same. From the very beginning, the intent was to encourage games from all platforms, arranged in as many musical genres as possible. That's what made us different – that was the 'big idea.'

The website's format was derived from Commodore 64 arrangement website C64Audio.com, then a host for many fan arrangements; Lloyd chose to have OverClocked ReMix expand the focus to all games regardless of game system. Originally coded in basic HTML and sporting an orange color scheme, and located at remix.overclocked.org, a subdomain of Lloyd's webcomic, the site underwent several visual redesigns before moving to www.ocremix.org in July 2003 and its present design in 2004. Initially the site was hosted by ZTNet and run directly by Lloyd; in 2006, it became self-sufficient and moved to dedicated hosting, and, in 2007, Lloyd registered OverClocked ReMix as a limited liability company.

At its founding, music submissions to the site were evaluated for inclusion solely by Lloyd, who required that all arrangements both meet his quality bar and also feature an original interpretation of the music, rather than minimally changing the original track. In early 2002, however, to better accommodate the volume of music submissions and improve selection consistency, Lloyd instituted a panel of judges, composed of accomplished artists and contributors to the community, to assist him in music selection, though he still provided an initial evaluation of all submissions for meeting a minimum quality bar. Judge Larry Oji (a.k.a. Liontamer) became head submissions evaluator for the organization in June 2006, taking over the majority of Lloyd's evaluation work and freeing him to focus on the site and company itself.

OverClocked ReMix's primary focus is hosting and distributing video game music arrangements. The site hosts more than 4,000 "ReMixes" from a variety of genres, submitted by more than 900 "ReMixers". ReMixes are available for individual download and through bundled BitTorrent distributions, and are searchable through a database of games, composers, companies, systems, and ReMixers. ReMixes are released under a non-commercial, attribution-requiring content policy.

ReMixes are added to the site after being submitted by their creators and passed by a panel of judges based on standards and guidelines encouraging arrangement creativity and high production quality. Since the site's founding, more than 150 works have been removed after initially being admitted, generally due to stricter enforcement of the site's standards after the admission of the work. To meet the inclusion standards, works must demonstrate significant arrangement work rather than being a "MIDI rip", a term used for works which take a transcription of the source material and make only minor modifications to it. Other barriers to inclusion include stolen or unoriginal recordings, cover versions that change the performance but not the music itself, arrangements which differ so far from the source material as to be unrecognizable, and obvious sub-par execution. The site also maintains a database of the skills of members of its community to encourage artist collaboration. Lloyd and other staff also conduct interviews with prolific ReMixers, video game music composers, and celebrities about video game music creation.