Hi,
I am sorry the game didn’t work out for you, but thank you for telling me!
I have already mentioned in the game description the game is untested on MAC. You are actually the first one who have reported back to me.
I am not having high expectations at all. I thought Unity would build the game for Windows, Linux and MAC (64 bit) by default. I know now, that's not the case. It requires a separate build for MAC.
I have removed the MAC availability icon for now. I need to learn about how this works.