>>720285105 (OP)
>Is DarkCookie solo dev or retarded?
As far as I know, he was a solo developer at the very beginning, because he used the game as an excuse to learn something about programming. This was the phase where he progressed the fastest.
Then he hired a programmer when he saw that the game had money-making potential, but the guy was a fraud and made a mess that no one could deal with, even though it was a Ren'py game with super simple scripts. This was the phase where progress slowed down.
Then he apparently professionalized the project. That's when progress practically stopped. I have the impression that this was intentional, someone within the project team concluded that they would make more money if they stopped progressing because of the way Patreon works, and their business now is to keep receiving donations without necessarily having to deliver anything.
This last part is just my speculation.