Commander Keen Complete Pack
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
7.7 hrs on record
Counter-Strike: Source
Day of Defeat
Day of Defeat: Source
0.1 hrs on record
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Deathmatch Classic
Doom 2
Doom 3
Doom 3: Resurrection of Evil
Earth 2160
Fallout 3
10 hrs on record
Final Doom
Half-Life
0.9 hrs on record
Half-Life 2
1.6 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
8.2 hrs on record
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
Half-Life Deathmatch: Source
Heretic: Shadow of the Serpent Riders
Hexen
Hexen 2
Hexen: Deathkings of the Dark Citadel
Left 4 Dead
8 hrs on record
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Left 4 Dead Authoring Tools
Master Levels of Doom II
Portal
0.6 hrs on record
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Quake
Quake 3 Arena
Quake 3 Team Arena
Quake II
Quake II: Ground Zero
Quake II: The Reckoning
Quake Mission Pack 1: Scourge of Armagon
Quake Mission Pack 2: Dissolution of Eternity
Return to Castle Wolfenstein
1.6 hrs on record
Ricochet
Source SDK
Spear of Destiny
Team Fortress 2
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Team Fortress Classic
Ultimate Doom
Wolfenstein 3D
World in Conflict
World in Conflict: Soviet Assault
3 hrs on record
World of Goo
6.1 hrs on record
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