itch.io

I know that it's not the game's fault as aside from the lack of permissions it all works fine according to other MacOS users

maybe there was a failure in the download process and thanks to that the data is incorrect.
Try redownloading it, and if that doesn't work, then I don't know what does.

I packed the game in a tar archive, check it out
cuz > {The zip format doesn't have easy support for Unix-like file permissions, so your transfer process is stripping any permission flags that OSX uses to recognize files within that zip that are supposed to be executable. This can also happen with other file transfer solutions, so it's something to watch out for.

The best solution would be to create an archive which does keep those permissions, such as a tar archive.}

https://drive.google.com/file/d/1L3G6qWNaJWyF14h158YOibLL8Y3ftX-k/view?usp=shari...