I return, unfortunately bearing bad news, but this time I think it might be a "me" problem rather than a "Mac" problem. The program came up, opened for about 3 milliseconds, then crashed. Here's some of the more important looking gobbledygook it spat out at me.
Viewing post in Aboard the Cosmic Cradle comments
Maaaaaaannnnn…
I unfortunately don’t have a Mac I can build the game natively on myself. I was briefly able to test it on a Mac and the game definitely worked for me even if the custom cursor was like 3x the intended size. If you have experience using the terminal, feel free to try this
chmod -R +x CosmicCradle_0.1.1_Mac.app/Contents/MacOS
from the folder containing the game to ensure all the permissions are properly set. If that doesn’t work, then it’s likely an issue with the CPU architecture of your Mac not playing nicely with the game (not your fault. It just means I need to do some work to properly support all Macs in the future). For now, continue to use Wine and hopefully I can figure out why Unity doesn’t want to play nicely with the Mac build. Thanks for bringing this to my attention!