I can't find a mac download option in the first place, cos the apple icon one is iOS/android. I can confirm though that it seems to work fine for me if you download the windows version, then get https://github.com/m5kro/RPG-Maker-MacOS-Launcher , then open that rpg maker launcher app (if it struggles learn how to bypass gatekeeper) and install latest nwjs version from "install nwjs version", select game folder (u can also export as standalone app if u want) then click start game. Hope this helps