Minimum Requirements:
- Operating System: Windows 7 / Vista / XP
- Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
- Memory: 2 GB RAM
- Graphics: ATI Radeon X800 (or higher) or NVIDIA GeForce 7600 (or higher) or Intel HD Graphics 2000 (or higher)
- DirectX: Version 9.0c
- Network: Broadband Internet connection
- Storage: 8 GB available space
- Additional Notes: Requires Portal 2
Recommended Requirements:
- Operating System: Windows 7 / Vista / XP
- Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
- Memory: 4 GB RAM
- Graphics: ATI Radeon X800 (or higher) or NVIDIA GeForce 7600 (or higher) or Intel HD Graphics 2000 (or higher)
- DirectX: Version 9.0c
- Network: Broadband Internet connection
- Storage: 8 GB available space
- Additional Notes: Requires Portal 2 + Sixense MotionPack DLC