Re:Warzone 2100: A Free and Open Source Real-Time Strategy Game
by CliffyA on Friday January 06, 2017 @05:30AM
(#13335292)
Saga of Ryzom went open source with creative commons assets.
https://en.wikipedia.org/wiki/Ryzom#Source_code_and_assets_f...
Tho on second thoughts I think the server side quests and world map may not have been released, so it probably does not count.
Majority of previously commercial games do not open source the data files, e.g. FreeSpace and Quake.
apt-get install warzone2100
Done.