This is such an exceptional game. The story and worldbuilding are genuinely incredible. I played what was available a few years ago and it's hard to explain just how much I appreciate the way sex is treated as a normal, diverse, and rich part of the human (and succubus) experience both in the story and the worldbuilding. The fact that, if anything, the explicitly pornographic scenes in the game enhance that diverse representation is amazing. Almost all media I've been exposed to in my life treats sex like it's filthy and shameful or just base instinct/pleasure or, at the absolute best, as something that's kind of tolerated if you're not too loud about it. This is definitely rambling at this point, but this is genuinely such a great thing to have put out into the world.
I just found the game is complete, and I can't wait to re-install it and play it through to completion.