Before Valve's Steam OS initiative Games in Linux were few and far between.
Windows Library EmulationEdit
Most gamers used Wine or a windows system emulator to play games on Linux. PlayOnLinux is a tool to help Linux users install & run Windows games and programs onto Linux, via the use of Wine.
(Not to be confused with Steam OS)
Steam is a game delivery platform made by Valve for Windows, Mac & Linux systems. Steam store has over 300 Linux games, over 500 when including expansions & mods.
Desura is a game delivery platform made by ModDB for Windows, Mac & Linux systems. Desura focuses on Indie & open source games.
Lutris is a game delivery platform made for Linux only. It also allows installation of games from other systems through emulation.
System Library emulation on AndroidEdit
- Winulator - Windows system library emulation for Android - http://www.winulator.com/
- Cider - iOS system library emulation for Android - http://systems.cs.columbia.edu/projects/cider/