Maybe these could interest you: Helping the Hotties, Dating my Daughter, Once in a Lifetime, Fetish Locator (although it has avoidable NTR/Trans), Long Live the Princess
Ren'Py by far. Easier to backup saved games, easier to use if the dev does not actively block core functionalities (skips, rollback, etc.) and it is probably a given that the game will not be a waste-of-time grindfest like an RPGM one.
I think it is just a mix of nostalgia and increased media production. It happens everywhere, specially since games, shows, films, books, YouTube videos and so on where labeled as just "content". Market is saturated, and every day new creators appear, but the pool of ideas is limited. Add to the...
"The Tower", odd, depraved, and with just one choice in the last scene, but with beautiful and original renders and setting. Not the usual DAZ or HS models for sure. Then the usual suspects: Euphoria and Red Room
For Ren'Py VN I find WT nice but not essential, as you could just fast skip for a new route. For sandboxes, absolutely, as I won't be replaying them and they can't be fast-skipped. And then there are some convoluted games like Euphoria, where WT seem a necessity. I wouldn't have experienced...
Maybe "Theater of Sinners" could be interesting for you. Female MC, not many paths can be chosen, and it is ongoing, but it is beautifully rendered and the story is OK.
Exaggerated or impossible postures (the almost comical 90°-bend butt-to-spine comes to mind)
Nonchalant reactions to what should be shocking revelations: "Oh! You have a 20-girl harem including your 7 sisters? OK, I'm in!". For once, I'd love to lose a LI because of this or at least have some...