TLDR for the patreon post; Game dev makes game, abandons it because he wants to write the story in a SFW novel/book format, and now people are disappointed.
Honestly, I can't hate someone for just trying to follow their passion but I've always been an avid believer of "finish what you started", especially in this case because many people have paid money on patreon to support this game. To just stop it is a slap in the face to all supporters. They wanted an AVN, not a novel (I'm assuming cuz the reception has been pretty mixed or lukewarm) And I also even doubt that the book will reach a success equal to, let alone more, than if he were to just continue this game. But he did also say he had another full-time job (unspecified) so maybe he's not doing it for money? Still a bummer tho.
I think the best solution the dev can do is either continue the game AFTER writing the book (it will take a long while for sure, but it's better if something will eventually be done than nothing at all). OR, he can do something like Stray Incubus (great game btw, y'all should play it) where he can give the rights of Evermore away to another person or team so they can continue working on the game.