I am not working with the dev in any way, but I am a professional computer whiz/pro gamer and Mac isn't a gaming computer and I suggest if you want to game on a computer I suggest getting a PC, because most games are designed for PC. The dev doesn't use mac so it is difficult to program the game for Mac. Sorry.
I know it's not. I'm using it for gaming because it went screwy on me last year trying to do work and nearly cost me a lot of it. It works fine for the gaming I do-- better than it does with Photoshop, frequently. I actually have a PC for work-- it's much better and more reliable, hence being work and not gaming. I plan on getting another PC eventually, but I'm no where near the point of being able to do so right now.
I can understand the difficulty of cross-platform configuring. I just thought I'd throw in my two cents on the matter.