OS: Windows Vista/XP Processor: 2.0 GHz Dual-Core Processor (Intel Core 2 Duo or AMD Athlon X2) RAM: 1 GB RAM Hard Drive: 15 GB available space Video Card: 128 MB 3D Video Card w/Shader Model 3.0 Support (Nvidia GeForce 7600/ATI Radeon X1300) DirectX: Version 11