Hey, I have issue with downloaded file. It is not the permissions issue, as described below download section.
I get following message when trying to run unpacked file:

“GridlessDB” is damaged and can’t be opened. You should move it to the Bin.

Thanks for help!

Please try to run this command in the Terminal (see a Youtube tutorial):

sudo xattr -rd com.apple.quarantine /Applications/GridlessDB.app

(Change the file path if necessary).

Or you can also claim the steam key and run the app through the steam client.

Great! Works like a charm - maybe worth adding to the remarks for macOS below the download section?

Also the reason buying on itch.io is that I do not have to deal with tragic steam launcher :)