MEGA files 2.0GB or more don't load and/or play on my MacBookPro.
Since the final game is going to be extremely large, I decided not to bother trying to break the game up into 2GB chunks as there would just be way too many parts to it. If the game is listed here, it will also be listed publicly on Patreon, which will have alternate download options (If the problem is just with MEGA). If the issue is with installing the file, you can always try the web-version:
https://cyoea.com/NextSteps (only available to active Patreon subscribers)