PS2 Games:
1) Metal Gear Solid 3 (Because 2 is just... no..)
2) Grand Theft Auto: San Andreas
3) Gran Turismo 3
4) Gran Turismo 4
Cant think of anything else.
And now for PC Games:
1) Half Life 2
2) Doom (Yes, I said it so kill me)
3) Half Life
4) Doom 3
5) Battlefield 2
6) Battlefield 1942 (Can be a pain sometimes)
7) Call of Duty: United Offensive (Blew CoD multiplay out of the water)
8) Call of Duty
9) Uplink (Not a very well known game. Click
here for more info)