itch.io

Even enabling "alternate download mode" for the downloads that have the option does not work.

I'm having the same issue. I never used to have this issue with downloading from itch. I suspect it's a way to force us to use their desktop app, which I managed to download and install. Problem with it is that, while downloading with it is reliable, you can't just download games, you have to install them - it auto-installs once the download is complete, and there's no option to turn this off (that I can find). 

The only way to complete browser downloads for me, it would seem, is to not touch my browser until the download is complete. If I do anything, the download usually gets interrupted. Sometimes I can resume it, other times it gives me the "Forbidden" error.

They need to sort their servers out I think, but I'd happily use the app if it didn't auto-install every game.

Is this intended as a full game or a demo?

Are there two separate players or do players share a controller? I guess what I'm asking is, can I play this game on my own using one controller?