@maxmustermann Commercial games can be free software and some are.

Clearly there is no justification for not publishing the source code under a free license if all commercial interests have dried up to the point where the game has been made available gratis.

Maybe proprietary software wouldn't be so bad if one there were regulations that required the release of the source code as free software once actual commercial interests have ended - having to wait 2-5 years for a game to be released in a fully enjoyable form clearly isn't an issue at all.