Couldn't get this application to launch in macOS Catalina. :(
Viewing post in A Crimp in Time jam comments
Don't have a mac around to try it, but last time this was a problem on my friends computer I just unziped the file command clicked to open (maybe I had to run as administrator). Some mac users have had better luck when opening this through the itch app. Let me know if you're still having problems and I'll see what I can do.