

Ur-Quan Masters (aka. Star Control 2)
But, it’s not really abandoned anymore. The developers are FINALLY making an official sequel!
The sequel is not open source, but UQM/SC2 is.
This happened in the early 2000s, but I think they found the source code to a port of the game and said “We haven’t earned any money from sales of this game in a decade [and buying digital games wasn’t really a thing yet, as people generally believed that anything digital shouldn’t have a price], so let’s release this to the community to open source as long as they do all the reverse porting and support!”
With the API changes, I became read-only (without an account) on Reddit.
I now skim the communities that don’t really exist here.
… it’s actually saved me a lot of time now that I can’t (and thus don’t feel the need to) debate local politics with morons anymore!
… unless and until they come to Lemmy.