Posted June 16, 2020 by dragons but also rabbits
*Edit: For Catalina users, it seems that the game will run fine if you get the itch desktop app! So please try that first before these other solutions.
The game will not open on Catalina properly. It seems to be a problem with the way Catalina extracts zip files. So far the workarounds people have reported working for other games are using the Unarchiver app or using a command in the Terminal. Please refer to https://itch.io/post/1516186 to see if it will help. My apologies!