I don't do game dev mainly on itch.io... why did you just assume that? I use this only for jams, which I mostly delete afterwards, because I file them away incase I hope to build more on them later. After making a portfolio of prototypes I found a team on r/gamedevclassifieds and am working with them.
I did play through to the end. Unless the game unlocks if you take a different path at the fork.