When i first checked on my macs ability to run this game, using the program theyve got on their site, it told me that it would not run. I ignored it, and bought this game. Even though the game itself warned me that it would not run, it ran nicely, on the lowest graphics. First time i played, there was no sound, so that kinda worried me, but after rebooting the game, everythings fine. It actually is a great game. Lot of fun, so far, and no problem of the laggy sort some others complained about. Dying adds a difficulty to it, and also the fact that you cant review while in-game the tutorial about one part or another of the game is also kind of a problem(maybe i missed the part where it said how to check it in-game?). All in all, a great fun game that is an awesome way to spend a measly 20 bucks on. Worthwhile all the way.