Just downloaded the game and, after unzipping and attempting to open the game, I get the following warning: "“Village Monsters” is damaged and can’t be opened. You should move it to the Trash." I'm attempting to play the game on macOS Mojave. :)
Hello! This seems to be a common issue with downloaded games on Mac. It seems related to security on MacOS. Itch.io suggests using their App (https://itch.io/app) to rectify this issue.
Unfortunately I'm unable to do much from my end, but I've had lots of reports of this solution working for others, so please give it a shot.