Well I just posted the announcement from the dev, but their announcement kind of undersells what they have just done.
Counterplay Games made a game they made, that was just published five years ago and cancelled two years ago, public domain, down to the source code and assets
It's an incredible addition to all the stuff that just went public domain a few days ago
BTW, yes, it does mean you can upload all the game assets on
@internetarchive now