Hi ollix! I successfully run the game in a Macbook Pro (intel) with Monterey 12.2.1.
I’ve just had to run both of these commands: sudo chmod -R 755 /path/to/Stacklands.app sudo xattr -cr /path/to/Stacklands.app
After these commands I think you should be able to run it. If not you can enter the discord server for sokpop. They are super receptive and we can help you better there.