Hi! For now, the MAC version is not available on Steam. We would reccomend that you request a refund from Steam and purchase the game here on itchio instead if you haven’t got a PC!
We don’t know yet, sorry! But it’s not going to be anytime soon, as we require additional assistance to figure out the issue. If you want to play and you have a MAC, it’s best to purchase here on itchio (or if you have already purchased, request a refund and purchase here on itchio instead).
I believe there should be a warning if the game is not compatible with your device when purchasing on Steam?