Developer: |
Valve
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Publisher: |
- Valve Corporation
- Microsoft Game Studios (XBLA)
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Distributor: |
- Electronic Arts (retail)
- Steam (online)
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Engine: |
Source Engine
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Released: |
- Microsoft Windows and Xbox 360 (The Orange Box retail)
- North America: October 10, 2007
- Europe: October 18, 2007
- Australia: October 18, 2007
- Microsoft Windows:
- PlayStation 3:
- NA December 11, 2007
- EU December 14, 2007
- AUS December 20, 2007
- Microsoft Windows:
- (retail stand-alone): NA April 9, 2008
- Rest of World April 11, 2008
- Xbox Live Arcade:
- Mac OS X:
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Modes: |
Singleplayer
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Genre: |
First-person puzzle/platformer
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Ratings: |
- ESRB: T
- OFLC: M
- PEGI: 12
- USK: 12
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Requirements:
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- Windows
- Windows 7, Windows Vista, Windows XP, Windows 2000
- CPU: 1.7 GHz (3.0 GHz recommended)
- Memory: 512 MB (1 GB recommended)
- Graphics hardware: DirectX 8 video card (Direct X 9 video card recommended)
- Network: Internet Connection
- Mac
- Operating system: Leopard 10.5.8, Snow Leopard 10.6.3
- Memory: 1 GB
- Graphics hardware: NVIDIA GeForce 8 / ATI X1600 or higher
- Network: Internet Connection
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