Gradually more often, people new to the Mac and the Mac gaming scene wonder why a particular game they crave is not available on Steam for Mac. Well most of the people have the same question. Do you think that there is some kind of compatibility issue with Mac or is there something else? If this would be the case then I think no one will buy Mac and rather everyone will go for Windows. So need to know the reason why Assassins Creed brotherhood game not available for Mac?