Dota 2, I play about 2 hours a day usually with my friends. Tribes Ascend, also, I usually play 2-3 matches a day.
I also have a number of single player games I've got and have been playing.
Bulletstorm: The game was on sale for 5 bucks on Steam recently so I got it. I hadn't played the game in nearly a year, I forgot what a fun and high quality game it was. It's worth playing, absolutely. Dunno if Skyway posts still, but I can just imagine. It deals away with most of his kneejerk reactions. Cover based, grey and brown graphics, popamole, etc. It's a brightly colored fun FPS with very fun mechanics, and I haven't laughed so much playing a game in a very long time.
Borderlands: I've reinstalled since I heard the sequel was coming, and it's actually a lot like Bulletstorm. Kind of unique mechanics for a shooter, very fun, good sense of humor, colorful graphics despite being set all in a desert.
Anno 2070: Have a lot of spare time? I have a problem with this game in that there's never really any payoff, all of the enjoyment comes from the gameplay itself. If you like management sims, setting up production chains and that sort of thing it's a great game. It also has a great soundtrack. For anyone who liked 1404 I'd recommend 2070. Almost 2/3 a year after release and it's still being sold on Steam for full price, which is kind of weird. Maybe it's more popular than I thought it was.
Terraria: If you have a friend or two to play this game with it's absolutely fun. If you don't, it's kind of mindless with no payoff.
