itch.io

This is the only solution I found. Hope this helps

1. if the game isn't working due to a "cannot open "game"" error, it's a permissions issue -> open terminal -> navigate to the folder where the game is stored (for me it was by inputing the command cd downloads -> cd Chronicles_of_Hell_and_Heaven_MAC -> cd COHAH) -> sudo chmod -R 755 Game.app (changes the permission of the app so it can run) -> if it gives an error about untrusted developer or whatever, ctrl + click -> open -> it should let you open the game! all credits to this kind stranger who's post i found on the rpgmaker web forums. there's also a tutorial to port the game from rpgmaker mv (probably what the game is running) to the newer version of rpg maker mv (bit more optimized, and increases performance)
2. here's the tutorial: https://forums.rpgmakerweb.com/index.php?threads/need-some-help-cannot-open-a-game-on-my-macbook-pro-the-game-was-made-from-the-rpg-maker-mv.150926/#post-1307030 (credits to proxxie_desu).