Left 4 Dead
1.5 hrs last two weeks / 49.3 hrs on record
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Counter-Strike
0.3 hrs last two weeks / 207.9 hrs on record
Aion Collectors Edition
Commander Keen Complete Pack
Counter-Strike: Source
0.1 hrs on record
Day of Defeat
Deathmatch Classic
Defense Grid: The Awakening
11.4 hrs on record
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Doom 2
Doom 3
14.7 hrs on record
Doom 3: Resurrection of Evil
0.1 hrs on record
Droplitz
7 hrs on record
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Final Doom
Garry's Mod
11.2 hrs on record
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Half-Life
4.1 hrs on record
Half-Life 2
13.6 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Heretic: Shadow of the Serpent Riders
Hexen
Hexen 2
Hexen: Deathkings of the Dark Citadel
Left 4 Dead Authoring Tools
0.1 hrs on record
Madballs in...Babo:Invasion
2.3 hrs on record
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Master Levels of Doom II
Plants vs. Zombies
17.3 hrs on record
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Portal
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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
Ricochet
Shadowgrounds
4.6 hrs on record
Shadowgrounds Survivor
Source SDK
Spear of Destiny
Team Fortress 2
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Team Fortress Classic
38.2 hrs on record
Ultimate Doom
