Open Source Games
- https://en.wikipedia.org/wiki/List_of_commercial_video_games_with_available_source_code
- https://www.pcgamer.com/yall-know-about-these-huge-lists-of-free-open-source-game-clones-right/
- https://trilarion.github.io/opensourcegames/
- https://trilarion.github.io/opensourcegames/games/top50.html
- https://osgameclones.com/
- https://osgameclones.com/?tag=complete
- https://osgameclones.com/?tag=playable
- https://libregamewiki.org/Main_Page
- https://www.freeciv.org/
- https://openxcom.org/