Step 1: Download the NATURAL8 App Installer.
Step 2: Drag the icon to your Applications folder.
Step 3: When you first click the game icon, a malware warning pops up. Close it.
Step 4: CTRL + Click or Mouse Right Click (trackpad two-finger click) the game icon to open the dialogue menu.
Step 5: Select 'Open' and another malware warning shows.
Step 6: Select 'Open', then the game starts running.