Not working for me on macOS tried using keka and unarchiver both and tried reinstalling.
not sure if its not being unzipped correctly as when I open package contents to see if I can find a way to open the game in the package contents the game itself shows up as a documents file.
hope this helps Id really like to be able to play this on my Mac
if anyone has any suggestions id love to hear it.
I noticed another commenter had the same issue.
its not gatekeeper because It won't open even when bypassed.