Geomerge!
And I play: (Just listing the Multiplayer ones)
L4D, L4D2, Borderlands, The Orange Box, Halo 3 (only on occasion), Bioshock 2,
Basically, I play a bunch of FPS games.
Send me a Friend Request, I won't bite.
(But don't invite me if I'm playing CoD, because then it's my brother playing.)