Portal 2 is second place for me for Game of the Year 2011. The gameplay we all loved from the first game is back, with far more puzzle elements. The humor is more prominent this time around, there are a few iconic characters to carry the narrative, and the addition of co-op (which I was skeptical of at first) is brilliant. The controls for the PS3 version are probably the best first-person controls I've played. I have only played a puzzle or two of co-op, so anybody who has this on PS3 or PC and is interested, feel free to add me. When I'm done with Skyrim (or when it's done with me) I'd love to play some more co-op.