I was able to get the 64bit version for Mac from Gamejolt. Thanks for the tip. Unfortunately it crashes on launch. I'll try it out on my Windows laptop. Thanks nonetheless.
Hi, I downloaded the 64bit version for Mac from Gamejolt and it works on my MacBook Air M1. On launch it shows an error but you can launch it following this instructions: on your Mac open "System Settings", then "Privacy & Security," scroll down until you find the security message about Wolfling and choose to launch it anyway. It should work! The default buttons on my keyboard are “control” and “option”.
P.S. I discovered the game yesterday in a retrogames event in Vigevano (Italy) where the Reloaded version was playable on a real C64 and it looks wonderful, so now I want to try the Mac version!