Hi! Just wanted to add to this, I am running macOS Catalina 10.15.7 and I also could not get it to run if I downloaded the mac zip and tried to run it through finder. After double-clicking, the icon would animate and act like it opens but nothing would happen. Can't find a log.txt file anywhere either.
However, if I download and run through the Itch App, it works great! Not sure what's going on there. If there's any other info I can give to help solve this let me know!
Here's a bit more about my compy:
Model Name: MacBook Pro
Model Identifier: MacBookPro11,5
Processor Name: Quad-Core Intel Core i7
Processor Speed: 2.5 GHz