Phoronix: Wildfire Releases 0 A.D. Game Update
0 A.D., the game developed by Wildfire Games that was open-sourced in 2009, is now up to its fourth alpha release. The first 0 A.D. alpha came last August, but with this fourth alpha, those trying out this open-source game now have improved performance, improved rendering, a prototype version of the opponent AI, and other changes...
http://www.phoronix.com/vr.php?view=OTIwOA
One of the best (if not the best... or maybe it will be) open-source games ever !
The screenshots look very similar to Rise and Fall: Civilizations at War.
Somebody tell the devs to implement the awesome hero mode of that game.