On a different computer I saw "Unable to find game" even though the game was unzipped to /Applications. Does the presence of the .zip matter here? What is the cause for this error (paths?)
Sadly I have no real idea why this happens. Macs are strongly protective of what software you run and there are a lot of factors at play, including the way GameMaker exports their builds. Here’s my general advice:
Make sure you remove the app from its .zip or .dmg.
Move it to /Applications.
Open it with Right click > Open. Opening things this way apparently flags you’re trusting it.
If you havent’ tried that third point yet, that might be the ticket.
