After looking up Re;Lord and getting a glimpse of its gameplay style, the only similar porn game I recall off the top of my head is
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. It's an old flash game from 2003. My hyperlink leads to the Newgrounds page where it's currently running on Ruffle - I checked to make sure it still works.
It's a hidden gem these days what with Flash shutting down and its sheer age. It's a great game for a solo developer as a non-commercial project, but the porn is very light. As I recall, there's one scene of explicit female masturbation in one of the sketchbook-comic-style story segments between the dungeon segments, and while dungeon-crawling you can encounter random girls in various states of undress - there's no sex scenes with them, but if you remember or write down their names you can view them in the gallery. I got to the end of the game back in the day and I don't think the story even has a sex scene between the main character and the girl who helps him. There easily could be considering the bathing scene with a panel of full frontal and clear fingering, but if there is I don't remember it.
The RPG elements are very sparse too; just basic upgrades to three or four stats acquired from items in the dungeon if you choose to pick them up. I think the dungeon is procedurally generated too so it might be best to describe this game as a Roguelike. The game is also very short, with just a few basic story beats between crawls through this one dungeon.
So it's not really an RPG at all, just has light RPG elements; and isn't really a porn game, just has a little bit of porn. But it's all I got.
