That’s a sequoia-specific signing issue – the file is not actually broken, mac is just being dramatic
We’re currently testing out some workarounds, but in the meantime, the easiest way to get around that is to download/play through the itch app
yea, it's what i do nowadays anyway. although, even executing it from terminal doesn't seem to work, and that's usually ok for other itch games w/o needing the itch app. it's working perfectly fine now tho