When I click 'show file content' of the executable file, I am shown a folder called 'contents', when opening that folder I get the folders '_CodeSignature', 'Frameworks', 'MacOS', 'MonoBleedingEdge' etc. In neither folder is a file that I can execute to open up the game.
Sure no problem! I think the problem indeed lays in the fact that MacOS can't find a file format or program to execute to start the game. I'll keep you updated if I find the solution.
Keep me also updated if you find a solution. This could let a lot of games run on MacOS that now seem incompatible, despite having a Mac build.
I actually got it working, but it isn't plug and play!
Step 1: Open terminal
Step 2: type chmod +x
Step 3: Drag the file you find in: "Left click on the game -> Show package contents -> MacOS" to the terminal and press ''enter''.
(!) Dont't use ''enter'' between the chmod +x command and the file you want to drag.
This will make the file an executable file, which makes it possible to boot up the game.
The problem is that the Mac doesn't recognise the executable file on default.