Age of Empires demo - get the cheat codes while you are at it ;-)
world of warcraft no doubt<br />
if your like me and mostly *all the time* alone then its a good game people are all so close to each other its a crazy thing
i'm loving X-com Enemy Unknown on PS3, but it can be downloaded on steam [though it's not cheap] - haven't played the multipla<x>yer yet but the tactical combat aspect would be much more challenging against human opponents
League of Legends! Or go to kongregate.com for lots of good flash games.
I tried downloading this game...gets stuck after downloading 2gb or something of its installation
You should try to fix it. It's like the best game ever. I've played it too much though. Another good one is Rusty Hearts, but I can't log onto it anymore. They seem to have a lot of technical issues. But it's an awesome game with great graphics and cool cutscenes for storyline development.
Warspear online game only 27 mb