I'm torn between the Doom series and The Chronicles of Riddick. I played Doom 2 about 6 times, and the Ultimate Doom (episode 1 and 2) about 10 times already. Still, I'd have to go with Riddick - it's the only FPS that seems to have everything, even the kitchen sink. It's practically everything I ever wanted in an FPS.

stalker, bro
EDIT: half life 2, dude
EDIT EDIT: medal of honor, hombre
EDIT EDIT EDIT: unreal tournament goty, dawg

The Color Scheme in the game is just perfect - Get a pair of 3D Glasses turn off the lights crank up the sound and Have fun.

Team Fortress 2

I would say Half Life and Half Life 2.

Maze War. Whoever says otherwise must be shot.

Hexen (greetings mortal, are you ready to die ?) and Heretic.

this. i can keep playing that.
otherwise, for general mood thing: NOLF 2 and half life 2. And heh, i liked doom 3. AND I'M NOT ASHAMED!

Well unless I'm thinking of something else entirely, the disc polisher I got was a cloth, a few cotton balls and some brown semi-liquid paste stuff that went powdery when you rubbed it. It managed to salvage a few discs of mine that were pretty messed up and it was only about 10 bucks

Me too! :D

Best Multi player TF2
Best Single player System Shock 2

One more vote for Dark Forces. Half-Life ONE and STALKER were strong contenders, but STALKER lost because of the number of bugs.

System Shocks.
They really managed to use the first person perspective not just from a gameplay, but a narrative perspective (only books and computer games really can pull that one of easily from technical perspective). I'd so wish for more games in that direction.
Deus Ex always felt shallow in comparison. It's RPG aspects were to shallow, nor did it have an as strong atmosphere as the Shocks.

that is so hard to decide on as there are plenty that I like.
No one live forever has to take the cake for me as I was really into it and loved the humor.
As for multiplayer Call of duty United offensive is my favorite. I rock with a scope-less bolt action rifle.