Men of Valor
Gladiator: Sword of Vengeance
Anarchy Online
Ballance
Battle Engine Aquila
Morrowind
Bloodrayne
Breed
Call of Duty
Call of Duty: United Offensive
Deus Ex
Doom 3
Duke Nukem: Manhattan Project
Battlefield 1942
Need for Speed: Hot Pursuit 2
Need for Speed Underground 2
Hitman Contracts
Ford Racing 3
No One Lives Forever 2
Line of Sight Vietnam
Chaser
kill.switch
Silent Hill 3
Armed & Dangerous
Jedi Knight
Jedi Outcast
Halo
Rallisport Challenge
Neverwinter Nights
Panzer Dragoon
Quake
Grand Theft Auto: Vice City
Max Payne 2
Crazy Taxi 3
Serious Sam First Encounter
Serious Sam Second Encounter
Blue Shift
The Chronicles of Riddick: Escape From Butcher Bay Developer's Cut
The Suffering
Unreal 2
Unreal Tournament
Unreal Tournament 2003
Far Cry
Blowout

and i have steam silver pack as well

and if you don't want to count it as freeware Enemy Territory

I packed up my desktop for the move back to the dorms later today, but let's see what I can recall from memory.

Laptop:
Starcraft and Brood War
Rollercoaster Tycoon 2
Caesar 3
Morrowind
Starship Titanic
Tribes 2
Dune 2 (old skool <3age)
SimAnt
Age of Empires 2 and Age of Kings
The Last Express
The Journeyman Project
Madden 2K2
Some freeware games

Desktop:
UT2K3
HL2 and assorted silver pack games
Doom 3
Halo
Pirates!
KOTOR
Need for Speed Underground
Vice City
Painkiller
Rome: Total War
Prince of Persia: Sands of Time
Prince of Persia: Warrior Within
Jedi Knight
Grim Fandango
Black and White
Madden 2K2
America's Army
My WOW Beta client is still installed...
A handful of freeware games

Steam but without games!!!!!!!!!!! DAMM you STEAM!!!!!
Jk1,MotS,JK2,JK3
.......... more to come

-Call of Duty and United Offensive

-Independence War 2 (Eh, but that's getting the boot pretty soon...it seemed like a good idea at the time, though.)

-Jedi Outcast

-Warcraft 3 and Frozen Throne

-And then, well, the Windows XP games folder. A bunch of card games and minesweeper...you know. Well maybe GBK doesn't...

Rome: Total War
World Of Warcraft
Neverwinter Nights Platinum
Quest For Glory I-IV
Warcraft III+Expansion
Warcraft 2+Expansion
SW: Jedi Outcast
SW: JKA
SW: JK
SW: XWA
Kings Quest I-VII
Everquest and first six expansions.

Yeah, Lots of old school games.

Also, SAJN and Uber are brothers?

Dark Forces 2: Jedi Knight
Mysteries of the Sith
Jedi Outcast
Jedi Academy
Star Wars Battlefront
Duke Nukem 3D
Duke Nukem: Manhattan Project
StarCraft: Original and Broodwar
Doom 3
Dungeon Siege
Return to Castle Wolfenstein: Original and Enemy Territory
Red Faction
Age Of Mythology: Original and Titans
Soldier of Fortune Platnium
Soldier of Fortune 2
Morrowind

Yes, they are. Remember of the Thread Phat Pimpin.

Linux native:
Neverwinter Nights + both addons
Quake 3 Arena
Advanced Strategic Command
Cube
Enemy territory
Freeciv
doom3-demo
simutrans
jDoom
planeshift
Battle for Wesnoth

wine/cvswinex:
KOTOR
Red Alert

America's Army
Battlefield 1942
Battlefield 1942: Secret Weapons of WWII
Battlefield 1942: The Road to Rome
Doom 3
Evil Genius
Far Cry
Flight Simulator 2000
Half-Life
Half-Life 2
Halo
Midtown Madness
Painkiller
Quake III Arena
Red Faction
Return to Castle Wolfenstein
The Sims 2
Unreal Tournament
Unreal Tournament 2004

You may have time to play games, but I have a job to do!

In all seriousness, Starcraft, D2, Halflife + many mods, all of the homeworld serier, Ragnorok, and that's about it I think.

World Of Warcraft.

and Half Life 2.

i think those 2 games cover all bases.

Just World of Warcraft at the moment.

JKDF2
Sims 2
Nethack (++++)
Falcon 4.0 (YES!)
Wik and the Fable of Souls (paid for, awesome game google it)
Gish (paid for, too)
Sims and all the effin' expansion except the pet one (obsolete with sims2 installed, but I can't get my mom to let me take it off)
Doom3
Doom Collection (all the originals and expansions)
Morrowind trilogy
FF7
and uhh STEAM with Hostile intent, HL, and DoD

New(er) Games:
Americas Army
Age of Mythology
Battlefield 1942 (w/mods)
Battlefield 1942: Road to Rome
Star Wars Galactic Battlegrounds
Star Wars Galactic Battlegrounds: Clone Campaigns
Enemy Territory
Force Commander
Guild Wars (I CAN'T WAIT!!!)
Halo
Jedi Academy
Jedi Knight
Jedi Outcast
Mysteries of the Sith
Nascar Revolution
Red Alert 2
Red Alert 2: Ygic III: Thuri's Revenge
Sports Car GT
Star Knights
Star Wars: Knights of the Old Republic
UT2004
The Sims
Warcraft III
Warcraft III: Frozen Throne
X-Wing Alliance
Heroes of Might and Magic III
Heroes of Might and Magic III: Armageddon's Blade
Heroes of Might and Mae Shadow of Death
Rainbow Six 3: Raven Shield
Half-Life
Counter-Strike

Old Games:
Capture the Flag
Chip's Challenge
Cosmos's Cosmic Adventures
Crystal Caves
Duke Nukem
Duke Nukem 2
Duke Nukem 3d
Epic Pinball
Jezz Ball
Commander Keen1
Commander Keen2
Commander Keen3
Commander Keen4
Commander Keen's Dreams
Commander Keen6
Math Rescue
Word Rescue
Monster Bash
Raptor Call of the Shadows
Space Invaders
Terminal Velocity
Wacky Wheels
Zone 66

Soon to be:
HL2!!! Yea!

This is certainly not the extent of my games, this is about 1/3 of them...

Command and Conquer: Generals
Vampire: Bloodlines
HL2
Sim City 4

Americas Army
Half Life 2 Demo
Pacific Assault Demo (soon to be gone)