Thank you for the report!
I am being told by my mac testers (I’m not a mac user myself) that the first time you open an unverified app on a mac, you have to hold the control key while launching the game. If that doesn’t work, please let us know!
See: https://support.apple.com/guide/mac-help/open-a-mac-app-from-an-unidentified-developer-mh40616/mac