I made a
thread on this topic earlier, here are some of the entries that haven't already been mentioned:
Strip Club Wars - Graphics are realistic AI generated CGs; there's a wide variety of women (and men) available. Not all of them are conventionally attractive (and there's a few that don't look right because AI), but I think the contrast makes it better. It's also a management sandbox, but you're running a strip club, and competing with three other strip clubs. You also need to influence and bribe the city commission members, and get your friends/LIs elected to the commission, to pass laws that reduce restrictions on your club, and allow more sexual activity in public. Endgame is full public nudity/sex allowed. You can't directly tell girls what to wear, but you can modify the files to change what outfits are acceptable for each job, and the higher a character's lewdness rating, the skimpier the outfits they'll wear.
Holstein Girls - Short sandbox/VN where you help invent and produce a serum that makes women's breasts expand, makes them horny and submissive, hate wearing clothes, and makes them lactate. Cleared girls all stop wearing clothes entirely, and towards the end, the school allows public nudity. A remake with more renders and animations would be awesome!
Witch Trainer Silver Mod: Harry Potter Universe. Slowly corrupt different girls with Hermione being the main focus. Definitely a slow kind of game. (Most of the other games by Akabur also apply, although be prepared for slow burn)
Hentai Highschool+ fits this description. You become the principal of a highschool and you're out to corrupt it to the core. Students and teachers will wear progressively more revealing clothing. You can later work on corrupting the entire town. Management game, paper doll system, lot's of hentai images. A lot of the storylines are incomplete though just from writers coming and going over the years. Many different mods but most probably aren't updated for the newest version. Lots of grinding unless you mod it to make things easier.
Mystwood Manor - A management sim where the player takes over a hotel and hires a group of women, some of them family, to help run it. As you level the girls up, they wear skimpier and skimpier outfits, have more involved sexual interactions with the MC, and for the final payoff, they all can work fully nude.
The Null Hypothesis - Inspired by Rogue-Like above, tries to take the same premise but with expanded VN content. Much more story and characterization, but more limited in content. Only three girls available at present, and while you can customize their outfits, public nudity and sex are not currently available. Best you can get at the moment is running around in their underwear, and sex in their rooms.
My Fallen Angels - Harem sandbox, takes place in a zombie apocalypse with very few survivors, so nobody is enforcing public morals, and the virus is making your survivors super horny. Plenty of public shower sex and threesomes, and outfit customization in private, but nobody stops wearing clothes until the very end.
WTM Academy - Premise is that you're running a school and a law just got passed to allow teachers to molest students, supposedly to "motivate" them. Plot is paper-thin, but you're just there to get porn stars into your class and have your way with them. Progress is very fast, girls quickly get comfortable with you groping them, progressing to stripping and fucking them, and start showing up to class naked. You can also visit them after school, corrupt their mothers (to a more limited degree) and do the same gameplay at home, if you want to progress with a specific girl faster. You can also unlock photosets of the actual porn stars, there's a mechanic where you earn money by doing photoshoots and selling them to sponsors. The one frustration I have is that the in-class graphics aren't full pictures of the porn stars, they cropped out pictures of their individual body parts with different levels of clothing and make a composite. Not really the same IMO.