Chains
1.9 hrs on record
Chronicles of Riddick: Assault on Dark Athena
3.8 hrs on record
Cogs
1.4 hrs on record
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Counter-Strike: Source
Darwinia
7.8 hrs on record
Eufloria
14.6 hrs on record
GRID
30.5 hrs on record
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
Half-Life: Source
Half-Life Deathmatch: Source
Hitman 2: Silent Assassin
Hitman: Blood Money
13.5 hrs on record
Hitman: Codename 47
Left 4 Dead
5.9 hrs on record
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Left 4 Dead Authoring Tools
Mirror's Edge
Multiwinia
10.9 hrs on record
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Osmos
7 hrs on record
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Portal
5.9 hrs on record
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Prince of Persia
Source SDK
Team Fortress Classic
Trine
14.3 hrs on record
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Warhammer® 40,000™: Dawn of War® II
62.5 hrs on record
World of Goo
8.2 hrs on record
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