I play Terraria, but only if I get very lucky I can play it Multiplayer, I've had some trouble.

Ah, terraria is pretty cool, indeed.
Never play it anymore.

Bump, because someone was asking for this thread.

Team Fortress 2, Savage 2, Spiral Knights, Left 4 Dead 2, Left 4 Dead, Killing Floor

^----All games you should check out.

I've played Spiral Knights and Left 4 Dead, they're both really cool, but I don't play them anymore.

Halo and Halo 2 are alright on PC, and Left 4 dead series (anything Valve) is awesome.