After carefully reviewing the requirements, I downloaded this to my new iMac which works fine. I also downloaded one for my 2 year old power book. Thought the graphics have to be dumb downed on it, it works on there as well. If you're system can handle it, it's a great game with hours of fun. It's one of the first games I got for my mac and I'm glad I got it. I had to write this review because the one start reviews aren't fair. Again, if your computer meets the system requirements, you will not have a problem and will get a game that is hours of fun.