I'm having difficulty opening the Mac version. I've tried using the likes off the chmod +x op in the terminal window and still, the game isn't opening for me. It'll appear in the dock but there'll be no open windo
When you unzip the zip folder, try 'The Unarchiver.app' instead of 'Archive utility'.
Or, try this: Go into your "System Preferences > Security & Privacy" settings and in the "General" tab, there's an option you can select:
Allow apps downloaded from:
Anywhere.
If you cannot save the file, please move Game app to another folder and restart it.
Please let me know if this solution doesn't work.