- Minimum:
- OS *:Microsoft® Windows Vista®/XP®/Windows® 7
- Processor: 2.3 GHz CPU with SSE2
- Memory: 1 GB RAM (XP), 2 GB RAM (Vista®/Windows® 7)
- Graphics: 256 MB DirectX® 9.0c shader model 2b compatible GPU
- DirectX®: DirectX® 9.0c
- Hard Drive: 21 GB free space
- Recommended:
- OS *: Microsoft® Windows Vista®/XP®/Windows® 7
- Processor: 2.6 GHz Dual Core CPU
- Memory: 2 GB RAM (XP), 4 GB RAM (Vista®/Windows® 7)
- Graphics: 256 MB DirectX® 9.0c shader model 3 compatible GPU
- DirectX®: DirectX® 9.0c
- Hard Drive: 21 GB free space
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.