Deus Ex, both Max Paynes, the Gothic Games, and the Original Unreal Tournament. Deus Ex was so awesome even if it bought my poor K6-2 400 (overclocked to 450) and TNT2 system to it's knees. Max Payne is just, well the most bad ass thing ever 😀. As for Gothic the first one just impressed me so much with its depth and the fact that all the interactions were voiced in an RPG (I had just finished Morrowind). The story is great, the characters are great, and I loved how they went through the whole game voicing everything yet still managing to avoid giving the main character a name. The second was good too as a continuation of the first, but I guess I just had more hopes for it. The third iteration of the game was plauged with so many bugs and I couldn't believe how it stressed my Athlon 3000 and 1950GT. Heck it isn't even completely smooth on my overclocked 5000X2 and 3850 when I turn up the details. Even with all it's bugs and short comings, G3 still feels like an unfinished game to me, it was a very good game in its own right, but the sequels just don't top the awesomeness that was the first Gothic. As for UT, I just thought it was so great the way it said "Head Shot" with the sniper rifle. I also liked to dual wield the pistols, but it was normally more annoying than anything ^_^.