Sorry about the mac build everyone. Please read the new instructions to make the game work. I'm looking into ways to make it work out of the box.

Download the game and do the following:

Open up a Terminal and navigate to your app folder:

cd <PATH_TO_YOUR_APP>/<APP_NAME>.app/Contents/MacOS/

This folder contains the actual executable file which Windows apparently didn’t make executable. Let’s add the executable flag:

chmod +x <APP_NAME>

Sorry about the inconvenience. I don't have mac device and I cannot exactly test the game and make it work instantly without this hassle. If you skip the game, I understand that.