Yeh, I agree with HL2 and Far Cry. The worlds are so immense and interactivity (esp. with HL2) really enhances realism and of course overall enjoyment. At the very moment I'm playing through it again and it's great.
With Doom 3, it was undeniably scary, however I still found it a bit boring. I think the environment in general got a bit dull and repetitive after awhile. If you've got a fast internet connection, download a 320MB movie demo of F.E.A.R from Gamespot (if you don't know anything about this game).. or even better the playable demo. I thought it was pretty scary.. the supernatural themes in it just seems to be to be alot better executed than Doom. The AI for the enemies in this game are unbeliveable. Soldiers give cover fire at your position so their comrades can go flank you from the sides. Graphics are great, you can slow down time and engage in Matrix-style moves in first-person (although that might sound lame, in practicality it actually works quite well) and the plot is good. Doom 3 imo gave you sudden shocks and thrills, but this is the game that wets my underpants and makes me wanna call for mummy.
As for threadstarter, I agree if he enjoyed CS then Battlefield 2 seems a good choice.
