OS: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, or later.
Processor: Intel 1.8 GHz or higher
Memory: 1.5 GB RAM
Graphics: ATI Radeon x1900 or better / NVIDIA 8600M or better with 128 MB or higher Video Memory (VRAM)
Hard Drive: 2 GB free disk space
Save location (Steam version): Steam cloud Last updated · Mac OS last tested: 10.7