Day of Defeat: Source
9.3 hrs last two weeks / 317.6 hrs on record
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Audiosurf
0.2 hrs on record
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Call of Duty 4: Modern Warfare
Call of Duty: World at War
Company of Heroes
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
0.1 hrs on record
Day of Defeat
Deathmatch Classic
Garry's Mod
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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: Opposing Force
Left 4 Dead
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Left 4 Dead Authoring Tools
Ninja Reflex: Steamworks Edition
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Portal
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Prison Tycoon 3: Lockdown
Ricochet
Source SDK
Team Fortress 2
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Team Fortress Classic
Tropico
2.6 hrs on record
