I decided to write down a list of complete (no alpha/beta), playable (no proprietary dependencies), FOSS videogames.
I added all the games I could find online + all of the games that came to my memory.
Feel free to have a look to see if there’s something you didn’t know. And please suggest anything I missed, but please do not suggest pre-release or unfinished games.
Thank you!
EDIT: thank you very much everyone for the comments and for sharing additional awesome lists of FOSS material. Hopefully one day I will have the time to sift through all these games and pick all the non-pre-release ones which don’t have any proprietary dependencies.
In the meantime, here’s a copy of the links:
- LibreGameWiki - A wiki of free games and related topics started by Han Dao.
- Open Source Game Clones - Open-source or source-available remakes of great old games in one place.
- Open source games (bobeff) - A list of different open-source video games and commercial video games open-source remakes.
- Open Source Games (trillarion) - A list of open source games, game frameworks and game creation tools.



CC non-commercial is not a free license. FSF lists it under documentation licenses because it doesn’t recommend any CC license for software but the concerns are still valid.
Note that selling copies of free software is explicitly encouraged; free refers to freedom (specifically the “four freedoms”) and not to price. Commercial usage restrictions conflict with freedom zero (although it’s unclear how this applies in the case of a game) and commercial distribution restrictions conflict with freedoms two and three.
Ah, that’s a shame, I never really thought about it, but it does make very much sense. I’ll demote but keep the CC BY-NC games in a separate section in this list for now, but I will probably remove them in the future once the list grows enough. Thanks for the pointer!