OS: 10.10.1 (Yosemite)
Processor: Intel Core 2 Duo 2.4 GHz
Memory: 2 GB RAM
Graphics: 512 MB dedicated OpenGL 3.0
Hard Drive: 1 GB HD space
Sound: Any supported by the OS
Other Requirements: Broadband Internet connection
Additional: The Mac port is in-progress and very unstable at the moment.