CSS is Counter Strike Source I think.
Hopefully I'm not wrong
I don't have time to play much anymore...
But if I had I would play few ps3 games.
Batman Arkham Asylym/City and a load of old games I have bought for a cheap price.
But my favourite game in ps3 is Shadow of the Colossus. It's old, shitty and awful to play, but I somehow like it.