Tested this on iMac 2012(27 inch) with NVIDIA GeForce GTX 660M. 8 GB ram. OSX 10.8.4
This game runs and can be played if you are very patient. What earned it a bronze was the mouse was slow and jerky to the point the game is not enjoyable. Just to see how the game runs in Windows, I installed on Parallels 8; however, it would not even launch under that software.
Playing the game in a virtual windows did not seem to make any difference. Just for kicks, I also tried enabling Mac drivers (not exactly sure what that does), but no difference.
I'm still at it; so hopefully, I'll be able to get the mouse working more smoothly. I still have a lot to learn.