Is there any alternative to this kind of game out there? I've played Corruption of Champions, Trials in Tainted Space and now Lilith's Throne. LT is definitely my favourite but the lack of content has made the game stale, but I've played nothing else that matches the freedom and sandbox nature of these 3 games.
Degrees of Lewdity is the "victim simulator" variant,
mostly human but with transformation options as well as animals and monsters (can be disabled/converted into humans in costumes via settings). Lots of varied content and a fairly detailed sex system but NPCs are quite proactive most of the time and your options to refuse are limited. Also very RNG-heavy but fairly easy to savescum.
The old Slave Maker game and its clones cover some aspects but with less exploration and focusing on one NPC partner at a time.
Trap Quest has a bunch of extreme/niche content but it's a roguelike dungeon crawler so savescumming is pretty much mandatory if you want to go for sex scenes.
Depending on which parts interest you most other games might be decent too, HRPGs for the character progression and combat for example or Stationmaster for the slave mansion. Heck Illusion games like AI*Shoujo might qualify too.
I would
LOVE to see a framework which
looks like LT on the outside available as an open source platform for community-created content though, it's varied enough to bring different ideas to life and the moddable parts are simple enough for 1man script kiddie jobs.