If you didn't catch the latest Letter from the Producer LIVE, there was a brief mention of a possible version for Mac.

Quote Originally Posted by Bayohne View Post
Q45: Kasuga, I mainly play on a Mac. Do you have any plans on introducing a Mac version?

A45: There are still some minor bugs, but we did get the game to run on Mac. We are at the point where we are deciding if it will actually be a wise business move or not.
We’ll let you know should we receive additional information.