Blood
Planescape: Torment
Baldur's Gate
Ultima Online (Before stupid ideas like consent PvP were added)
Imperialism
Warcraft 2
Red Alert
Daggerfall
Civilization II
X-Com Apocalypse
Doom ( all )
MOH Allied Assault
Mafia
Splinter Cell
Rise Of Nations
Delta Force ( all series releases )
Return To Castle Wolfenstein ( killer game)
Heretic ( the original )
Battlefield 1942 ( plus Desert Combat add ons)
Age of Empires 2
Hitman 2
Blood
GTA 3
Need For Speed ( esp. 5 and Hot pursuit 2 )
Warcraft 3
Max Payne ( the original )
Farcry ( best of the best! )
Ultima IV
Ultima VII
Doom
Jumpman (on the C64! Whoohoo! )
Wing Commander
Alice
Return to Castle Wolfenstein
Half Life
Sim City (Original)
Baldur's Gate
1) Planescape: Torment
2) System Shock 2
Baldur's Gate series
Deus Ex
Unreal & Unreal Tournament
Quake
Clive Barker's Undying
American Magee's Alice
Tomb Raider
Silent Hill
Hmm... Halo, Tron 2.0, and (*wipes sweat, looks around guiltilly*) The Sims are gorgeous games, enjoyed them a lot, but they didn't exactly give me that "sense of wonder" and ubercoolness of the ones I listed here.
Master of Magic - no one has mentioned this and it's one of the best turn based strategy games ever
Wing Commander Series
Doom
Warcraft II
Battlefield 1942
Quake
Deus Ex
Dune
Halo
Star Trek: Armada
Star Wars: Jedi Academy
Starcraft
Doom
Warcraft II
Star Trek Voyager: Elite Force
Warcraft
Dune 2
Scorched Earth
Sim City 2000
Epic Pinball
Aliens vs Predator 2
- Soldier of fortune 2: Double Helix
- Call of Duty
- GTA series
- Unreal tournament 2004
- Far Cry
- Max Payne 2
- Star Wars KOTOR
- Battlefield 1942, I also have Vietnam, wasn't too impressed
- Painkiller
Total Annihilation
Unreal Tournament (all of them, for the years they came out in)
Diablo (1 and 2)
Half-life and friends (CS, DoD, TFC)
Mech Warrior (Ghost Bears legacy, and the one before that)
Doom
Max Payne (not a super great game, but an amazing concept at the time)
Sim City 2000
Starcraft
Commander Keen
(no particular order, except Total Annihilation IS number 1 on my list)