The idea of taking one of these horror stealth-em ups like the Granny games and adding a porn element to them is a neat idea. Even the niche of having unconventionally "attractive" monstrous women with dicks hunting you down is something that might have an audience if done right.
But the "barely held together with duct tape" feel of the actual game is a little too, well, shit.
The idea of mixing horror and porn is a rare combination that I think has potential (There's a reason why there is so much R34 of Dead By Daylight), but this just aint it.