Street Fighter 4 PC - The best version of the best fighting game.
Bionic Commando 2009 - Extremely underrated game
Fallout 3 - Having to start again after an unavoidable HD format is heartbreaking.
Cryostasis - Just started after finally having a computer powerful enough to actually run it. Already shitting me up.
Call Of Juarez Bound In Blood - Best western on the PC.