List of open source games

This is a selected list of free/libre and open-source (FOSS) video games. Open-source video games are games assembled from and are themselves open-source software, including public domain games with published source code. This list includes games in which the game engine is open-source but the game content (media and levels, for example) may be under a different license.

The games in this table are developed under a free and open-source license with free content which allows reuse, modification and commercial redistribution of the whole game. Licenses can be a public domain, GPL license, BSD license, Creative Commons License, zlib license, MIT license, Artistic License and more (see the comparison of Free and open-source software and the Comparison of free and open-source software licenses).

While the games in this table are developed under an open-source license, the reuse and modification of only the code is permitted. As some of the games' content (sound, graphics, video and other artwork) is proprietary or restricted in use, the whole games are non-free and restricted in reuse (depending on license). The motivation of a developer to keep the own content non-free while he opens the source code is most often the protection of a game as sellable commercial product. Sometimes the motivation is the prevention of a commercialization of free product in future, e.g. when distributed under a CC NC license.

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