Phoronix: Unigine Continues Improving Engine Quality

With Valve's Source Engine now on Linux, Unigine Corp finally has greater competition for the spot of the most demanding and visually impressive game engine native to Linux. At this point it really comes down to a fight between the Source Engine and Unigine Engine with id Tech 5 and Unreal Engine 3 not being natively available...

http://www.phoronix.com/vr.php?view=MTIzMDM