Oh, that's not good to hear; I don't have any AS Macs around (nor the funds to buy one), so if app security works differently from an Intel Mac, then I can't test that at all :(
Just double-checking, this on the latest v1.00-1 build and not the one from when the game was first released, correct? It shouldn't have a signature at all (though to be fair, I never recieved confirmation from anyone that it worked after it was updated). I was under the impression that unsigned apps would still run, but only with Gatekeeper disabled and opened via the right-click menu. But if this isn't the case with newer Macs, then I may just remove the build entirely as there's too much time, effort, and cost involved in making it work properly.