Man muss nur einmal dieses Loyalitätsprinzip da raus haben, sonst wundert man sich nach 20min, warum die eigenen Leute einen selber angreifen :-D
@myself my favourites are: #Warzone2100 / #wz2100, #0ad and #7kaa. #OpenTTD is also nice. For Warzone and 7kaa I find their history very interesting, they were commercial, closed-source games originally.
And #OpenRA, if that counts. At least its engine is #OpenSource. And it uses the original, non-free textures and sound files from #Dune and #CommandAndConquer #CnC.
And wow, #Mindustry looks great, didn't know about it until now and will definitely need to try it :-).
@phryk #7KAA, Seven Kingdoms: Ancient Adversaries, is another such game. It too was a commerical one, I actually got it in my first games collection for my first PC back then, Play the Games Volume 1. And it is now #OpenSource. "apt-get install 7kaa" and I then have it on my #Debian :-).
https://github.com/the3dfxdude/7kaa
https://www.7kfans.com/
https://en.wikipedia.org/wiki/Seven_Kingdoms_%28video_game%29#Open_source_project