They dont have alot of actual sex in them, but since they are all inspired by Magical Camp I can recommend 3:
1. Timeless Pantheon, finished, is generally liked, has a lot of options. Personally I find it hit or miss with some of the characters and puzzles (thankfully you can skip the harder ones and there is a full guide), also it has a very weird twist that may ruin the story for you.
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2. Between, currently in development, more combat and story focused. A big plus is that the dev is very active and thorough (and also inculdes a detailed guide in the game directory). I played it a year ago and it had a lot of content (20h+).
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3. Afterlife, unfortunately abandoned, but still a very ambitious and promising title. Has been credited as an inspiration for the two above games. Even if abandoned it still has a 15h+ playtime, although it was mostly long dungeons with smaller transformations.
(you can also try the authors previous game Blood Magic, however, It was in very early development when it was abandoned)
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