Another post from CMB here.

The game's mac version had sandbox enabled, but that was causing a major issue. This issue has been resolved. Note! You still need to allow the game to run by going into your security settings and clicking the "Open Anyway" button. If on newer macOS versions, you'll need to go to privacy and security settings, and open the from there. Do not click the "Move To Trash" button if prompted to do so from this app. Remember, only legitimate versions of the game will be hosted on itch.