A three month delay in Unigine's first game release is a bit disappointing, but it comes due to taking longer to negotiate with their publisher and ensuring the game itself will be great for all gamers upon its release. The precise release date in March has not been given officially, but it should come shortly after GDC 2011 (the Game Developers Conference in San Francisco) that is running from 28 February through 4 March.
The multi-player portion of OilRush is effectively complete and these Russian developers are now focusing upon the single player campaign mode. While delivering this unfortunate news, they have also released some new in-game screenshots for your pleasure.
For those wanting another game based upon this multi-platform, very-demanding engine, Unigine is running a Linux game development competition right now and you have good chances of winning (circa 10 entries right now).