Windows
OS: Microsoft Windows XP/Vista/7/8/8.1 (64-bit)
Processor: Intel Core 2 Duo, 3.0GHz or AMD Athlon 64 X2 6400+, 3.2GHz
Memory: 4 GB RAM
Graphics: nVIDIA GeForce GTX 260, 512 MB or ATI Radeon HD 5670, 512 MB (Does not support Intel Integrated Graphics Cards)
Network: Broadband Internet connection
Storage: 4 GB available space