Steam is only good for indie games. It's really easy to forget which indie games do you own and where(which site) did you buy them when you own lots of them.
I've just stopped playing it because of respawning enemies. It's an incredible design flaw for a stealth based game. Of course, you can play it as a regular shooter and respawning enemies wouldn't be much problem in that case.
Lugaru.
I also have a free Lugaru key. If anybody wants it just PM me your email and I'll send you the registration details. For details about the Lugaru check the below address out.
http://www.wolfire.com/lugaru
Left 4 Dead: It's an OK game.
Trials 2: Second Edition: One of the best indie games ever.
World of Goo: Another OK game. Highly overrated though.
Fallout 3: Still playing.
Trials 2. I bought this on steam on holiday sale just for $2.50. Probably one of the most addictive games to date. Trying to beat your friends best times never gets old.
Just finished Eets. Definitely one of the best puzzle games I ever played. I couldn't get the trophy "do something special" because I have no idea what that special thing is.