Definately Command and Conquer: Generals + Zero Hour. One of the best strategy games I've ever played, and I just installed it the other day so Im probably gonna play it after this post.
The Deus Ex series, I haven't played HR yet cause of my awful PC configuration hopefully I will be able to soon.
I know a lot of guys here that know me are gonna eat my head because of this next game but Ill go ahead and say it anyway, World of Warcraft, a lot of my playing hours went there..
And last but not least, Team Fortress 2, shout out to all of my friends on there, a lot are not from the community but it doesn't matter.. the ones from here know who they are.
well.. let's see.... gears of war 2.... LoK:Sou reaver 2.... freedom fighters.... COD 4.... darksiders.... but i will say.... Soul reaver 2 ... i played it in 2004... and it was my first game and i loved her story.. oh and i like Razil.. go to hell Kain.. LOL