when i download it and open it, it says its damaged and cant be open
Viewing post in Crab Game Mac & Linux comments
From this tutorial: https://itch.io/post/4880634
To fix this, use the command Dani gave: "xattr -dr com.apple.quarantine [app path]". App path is the full name of wherever you installed the game (for it, it was "/Users/MY_USERNAME/Downloads/64Bit.app"). So the full command was "xattr -dr com.apple.quarantine /Users/MY_USERNAME/Downloads/64Bit.app".
Open Terminal in the download folder and type the above command, OR select the game file in Finder, go to Finder > Services > New Terminal at Folder, then type "cd ..; xattr -dr com.apple.quarantine 64Bit.app". After doing this, I was able to open the game like in Step 8 in https://itch.io/post/4880634 (at this step, it opens but shows no servers). Then I followed Steps 9-11 and opened from Steam - servers now show and I can play.