Minimum:
OS: OSX 10.5
Processor: Intel Pentium IV 2.6 GHz or equivalent
Memory: 2 GB RAM
Graphics: Any graphics adapter with OpenGL 2.0 support
Hard Drive: 2 GB available space
Additional Notes: 1366×768 minimum display resolution
Recommended:
OS: OSX 10.8
Processor: Intel Core 2 Duo or AMD Athlon 64 X2 5600
Memory: 4 GB RAM
Graphics: NVidia Geforce 9xxx / AMD Radeon HD / IntelHD series or better
Hard Drive: 2 GB available space
Additional Notes: A resolution of 1920×1080
Save location (Steam version): Steam Cloud Last updated · Mac OS last tested: 10.8.5