Quake II, III, and IV
Alien v. Predator II (+ Primal Hunt)
Painkiller (+Battle out of Hell)
Half Life 2 (+ Lost Coast)
Doom 3 (+ Resurrection of Evil)
Unreal II
Scrapland
Alice
Aquanox
The Thing
F.E.A.R.
Tron 2.0
Halo
Half Life
Opposing Force
Blue Shift
Chex Quest
Far Cry (to be uninstalled shortly)
Battlefield 2
Battlefield Special Forces
Battlefield Vietnam
Commandos Special Forces demo
FEAR
GTA San Andreas
Max Payne 2
Morrowind
Psychonauts demo
Rome Total War
Silent Hunter III
Steam Bronze
Trackmania Nations
World of Warcraft
X3 Reunion
Battlefield 2
Diablo II
Starcraft
Warcraft III
Steam Games
Hitman 2
Civilization 4
Guild Wars
KoToR
Morrowind
Quake 2
Rainbow Six 3
Rome: Total War
Splinter Cell 3
Ut2004
HL2
Doom 3
Quake 4
Quake 2 & expansion packs
FEAR
Need For Speed MW
Hitman
Hitman 2
Football manager 2005
Far Cry
Splinter Cell Pandora Tomorrow
XIII
Uru- Ages Beyond Myst
Project IGI
GTA San Andreas
Boiling Point
Morrowind
Call of Duty
BattleField 2
System Shock 2
Chronicles of Riddick
Trackmania
Pro Evolution Soccer 5
Half - Life 2
Day Hard
Half - Life
Half - Life: Opposing Force
Half - Life: Blue Shift
Ricochet
Day of Defeat 1.6
Day of Defeat: Source (free weekend)
Counter - Strike: Source
Counter - Strike 1.6
Half - Life 2: Deathmatch
Garry's Mod 9
SMOD Version 3.5
Half - Life 2 Substance: Gold
Natural Selection
Sven Co-op
The Specialists
Team Fortress Classic 1.6
Deathmatch Classic 1.6
Half - Life 2: Lost Coast
Doom 3
Starcraft+Expansion
Warcraft III+Expansion
UT2004
Unreal+Expansion
Call of Duty
Soldat
Worms Armaggedon
All the Quakes except for quake 4
Doom 3
Doom Collector's Edition
World 42
Tibia
Gunz
Heroes of might and magic 3 shadow of death
HoMM4