OS: Windows XP Processor: 2 Ghz CPU. VR: Intel Core i5-4590 (AMD FX 8350) or better RAM: 4 GB Hard Drive: 2 GB available space Video Card: OpenGL 1.2.1 compatible GPU with 512 MB of video RAM. VR: GeForce GTX 970 (AMD Radeon R9 290) or better DirectX: Version 8.1