Windows
Requires a 64-bit processor and operating system
OS: Windows 7
Processor: 2.8GHz
Memory: 2 GB RAM
Graphics: nVidia GeForce 8600/9600GT or equivalent
DirectX: Version 9.0c
Storage: 7 GB available space
Additional Notes: Currently compatible with 64 bit operating systems only, pending a patch in 1-2 weeks.