well Kikuichimonji this is a real tough one. the more i think about my gaming past the more great games i remember. so here is my list in no particular order as that would just be to hard.
FARCRY(pc)
a amazing game with stunning graphics, huge levels and great game play.
F.E.A.R(pc)
the first game to really scare the crap out of me! dark room and headphones and this game can't be beat for atmosfear!
LEGO STAR WARS II(pc)
ok now this might be that i am playing this game to death at the moment, but i really love this game. great graphics, awesome gameplay what more could a lego and star wars fan want!
THE LEGEND OF ZELDA WINDWAKER(GC)
this game had it's flaws but was still and great game in it's own right. it was good enough for me to complete it twice.
TIE FIGHTER(pc)
probably the best star wars game ever! stunning!
GRAND THEFT AUTO:VICE CITY(pc)
a great game, probably made better by the great eighty's sound track
THE LEGEND OF ZELDA OCARINA OF TIME(N64)
my favourite roleplay game ever! (soon to be replaced by the twilight princess)
MARIO 64(n64)
best game ever? some might say.
THUNDERFORCE III(md)
a real blast from the past. one of the best arcade style shooters i ever played. hopefully it will appear on wii :-)