Minimum: OS: Windows 7 / Vista (Windows 7 64 bit suggested) Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher) Memory: 2GB (4 GB suggested) Graphics: NVIDIA GeForce 200 series card or better, or AMD Radeon 3000 series or better (NVIDIA GeForce 400 series or AMD Radeon 5000 series preferred) Monitor: 1366 x 768 (1920 x 1080 suggested) Hard Drive: At least 15 GB of Space Sound: DirectX 9.0c compatible USB headset with mic (suggested)