Hi, I just made an update and figured out a way to open the game on mac, at least I managed to do it on a MacBook Air which wasn't strong enough to play it, but at least I got it to open haha
Open Terminal and type "chmod -R 755 " and drag the .app into the window, which will bring the full path into Terminal. It will look like this:
chmod -R 755 Path\ to\ app\ file.app
Press Return. Then you can open the app file normally, but it will prompt the gatekeeper which can't verify the app. Instead right click on the app and choose Open, which will give you the Open option during the verify prompt. Alternatively you can go into "Security and Privacy" in "System Preferences" and then click to allow the app to open.
Let me know if that works for you!