OS: Windows Vista (SP2), Windows 7, Windows 8.1 Processor: AMD Athlon X2 4800+ (2 * 2500 Mhz) or Intel Core 2 Duo (2 * 2600 Mhz) or higher Memory: 2 GB RAM Graphics: Intel HD Graphics 4600, ATI Radeon HD 3850 (512 MB), NVIDIA GeForce GTS 250 (512 MB) or higher DirectX: Version 9.0c Storage: 900 MB available space Sound Card: DirectX 9.0c compatible.