Operating system: Windows XP, Vista, 7 (Mac version in Summer);
Processor:2.2 GHz processor supporting SSE2 (e.g., Pentium 4 or Athlon 64);
Memory: 2GB (Windows Vista/7 3GB recommended);
Hard disk space: 1GB;
Video: 512MB graphics card;
Sound: Integrated sound;
DirectX®: 9