This game was a lot more fun than I expected. I just made my plans from the wiki since the rape fail states were a bit icky. But it was a fun spreadsheet simulator. I was aiming for a male play through with a female harem ending. It worked out okay, but there isn't enough interactions with the companions to actually feel like a relationship, the only regular sex implied is the semen demon scenes. Some suggestions:
Right now the ideal strategy is to stack up debt and make one big dive to layer 9 in one big go. As have been mentioned before making a strategy of repeated dives would probably be more interesting. My suggestion is to make the ascension cost divide by the amount of times you've taken the route. So the route from 8 to 7 would cost 100 the first time, then 50, then 33 and so on. So the first dive is just as brutal, and repeated dives still diverges into infinity, but traveling between the upper layers could become trivial after some investments, which would make you feel more like an experienced diver. Alternatively make repeated events at lower levels that reset after you go to the surface. The cost of ascending would hopefully make grinding unsustainable.
Some way to give multiple curses to your followers. Right now if you want to fully feminize Khermia none of your companions will ever look you in the eye again. You could give each follower a gender change quest line where they willingly take those curses, and for some you definitely should, but that just repeats the problem for someone who wants a submissive harem or a big breasted harem. A third shrine on the sixth layer that instead of giving corruption costs corruption would give players more freedom over changing their companions. The shrine would convince them that this is the way they've always been, so it wouldn't cost affection.
Here are the bugs I found:
Elder fight impossible, no matter if I tried a combination of relics that should work, I got an error and a limb ripped off.
Bandit can't participate in mayfly orgy. She is mentioned but the act is never described as with other companions.
I stayed at the mayfly orgy for 1000 days with absolute pregnancy and 8 female companions, but only had four pregnancies.
You can cheese corruption by requesting purity tree planks at the maw. Don't fix this yet, it was fun. Also endless aeonglass costs 10 at the maw but sells for 300.
Lastly, and this isn't a criticism, but the economy of this game is fucked. You are saying that an unlicensed nuke costs as much as a tesla? A crown that could make you a king, but it costs less than the average suburban house? It makes sense that without a personal connection to the Ayatollah it would be hard to get a good price for a nuke, but still funny.