Killing Floor
Played 70.2 hours past 2 weeks
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Day of Defeat: Source
Played 8.4 hours past 2 weeks
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Audiosurf
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
Doom 2
Doom 3
Doom 3: Resurrection of Evil
Final Doom
Half-Life
Half-Life 2
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: Source
Half-Life Deathmatch: Source
Killing Floor SDK
Left 4 Dead
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Left 4 Dead 2 Demo
Left 4 Dead Authoring Tools
Master Levels of Doom
Opposing Force
Portal
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Source SDK
Team Fortress 2
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Ultimate Doom
Unreal Gold
Unreal II: The Awakening
Unreal Tournament
Unreal Tournament 3 Black
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