OS: Windows XP SP2 or later Processor: 1.4Ghz CPU minimum, 1.8 Ghz recommended for background animation or multiplayer Memory: 1 GB RAM (2 GB recommended) Graphics: 800x600 or greater screen resolution (32 bit color, 1280x720 recommended) Hard Drive: 600 MB Other Requirements: Internet Connection or LAN required for networked multiplayer. Single-computer multiplayer is also available.