Minimum: OS: Windows XP/Vista/7 Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher) Memory: 2 GB RAM Hard Disk Space: 5 GB of free space Video Card: Video card must be 128 MB or more and with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher). Sound: Direct X 9.0c compatible sound card