it definitely seems to be the end which is a shame because it was really great, but the way he went about ending it was a very asshole way to do it, he knew for a year that he wasn't going to finish it, so all the people that where paying him for updates basically got scammed out of their money. there where plenty of people that where there for the smut AND the story, i should know because i was one of them.
this is specifically for the DEV: I hope you reconsider and do end up finishing the game, including the smut, I say this with reservations.
IF (and i do mean IF) you ever actually finish the novels, ill only be reading them because i hate leaving a story unfinished. you've screwed over the people that trusted you, I honestly dont see how people are finding ways to defend what you did. writing a novel version without the smut would have been fine if you had been honest about it when you first decided to end the development of the game over a year ago.