I like Pseudoregalia but i can't recommend it because it's a tech demo at the end of the day and the level design is as plain as grass. You can get hooked on the movement tech and all of that, but all it does is getting you addicted to the idea of doing custom levels and because there's no official modtools or a level builder, no such thing as a happy time with this speedrunbait game.
Just stick to porn, Sybil has like 1,500+ pics in esix.