Well, I'm playing the browser version, and I don't see a way to download saves. But as far as I remember, every customer left happy. I don't think I made any mistakes.
Viewing post in Malevolent Planet 2D Demo - May Public Build comments
Yes, there's no way to download saves on the browser version because they're saved in the local storage in the browser and it's a bit messy. I'd try in the future to make it possible to import/export saves in WebGL.
I'll check it out and see if everyone's happy if I still reach the bad ending, thanks for the report :)