itch.io

MEGA quota is 5GB and the download is only 2.8GB so you shouldn't be hitting the quota unless you had already downloaded something else during the same day that would exceed the 5GB limit when combined.

I had the same problem. I just wanted to play this game because it looked really cool. I'd never even heard of mega before and it told me exact same thing. I'm not going to pay for a service I don't really have any intention of using for anything else, just so I can play one game for my YouTube Channel. This game looks awesome, but that's really annoying.