Tested on a MacBook (GMA 950, CX11.2, OS X 10.6.8) and on a MacBook Air (GF320M, CX11.2, OS X 10.6.8) - the game runs very well on both machines, out of the box with no necessary tweaking; the only wrinkle is that the game's graphics options should be tuned accordingly to the graphics hardware available. On the GMA 950 MacBook, performance was a little sluggish but still very playable, with graphics options set to low and resolution set to 800 x 500. On the MacBook Air, the game ran perfectly with all of the graphics options maxxed out.