Aurelia is def one of the best erotic games I played, because it fulfils both the aspect of erotic content that you work towards unlocking, as well as some gameplay/story elements that actually make sense. It has a good balance of grindiness (perhaps a bit too much at times) and simple puzzle solving. It also is basically playable to 100% within the same playthrough which is nicer than having to fuck around with save files, since even in the games where you do a lot of save scumming the devs are clearly aware of it and it's part of the experience - so why bother at this point.
PS: idk how to write reviews yet so I'm just leaving this comment