Not as much as in windows but I play
• Doom 3
• Deus EX:HR
• UT 2004
• Portal 2
• All Half Life games
• Star Craft 2
Using Crossover and Parallels I play
• Homeworld 2
• Battlezone 1 and 2
• Unreal 1
But yeah, I play more recent games in Windows since they are only available there (Crysis, Battlefiled) also I can only use nVidia Surround in windows.