+1 to Diablo 2...
Followed closely by Roller Coaster Tycoon...
As far as single-player shooters i'd hands down easily say BioShock and then F.E.A.R.
Multiplayer shooters definately goes to Counter-Strike: Source, followed by Halo 2 (that game touched me in ways H3 never could)
RTS; Red Alert 2 back in the day had me wanting a PC so bad as a kid when i saw my uncle play it, and i currently am in love
with StarCraft II. However Black & White II (never played the first) had me falling in love with the god complex... Company of Heroes was probably still the most stunning RTS experience i've had to date~ just hate WWII settings nowadays~ so i really need to try out Dawn of War.
Anyway i'm blabbing, off to bed it's 3:37 AM Edited by HeartOfAHydra - 3/15/11 at 2:47am