I don't think Legerdemain is a good game
May I ask why? (Really, I want to know.)
It's not a bad game, but it triggered my TL;DR filter pretty quickly - IMO roguelikes are about game mechanics and not about story, and I don't find the two mix too well (I think few games beside RPGs and point&click adventure games really benefit much from a prominent story).
I don't know what you mean by the "TL;DR" abbreviation, but I think I understand your post anyway. I think I had a completely different first contact with roguelikes.
It was Nethack: Many many years ago I had just installed my first Linux and was searching through the games section of the package manager. I was searching for RPG, and Nethack was the first result. With a RPG definition which was based on stats, but not on story, I could agree that Nethack surely was a RPG. That it was a roguelike ... this I discovered years later.
However, while playing Nethack I soon recognized that it was a really BAD RPG, because it had no story, and the whole theme was completely inconsistent. It did not show me a detailed world. This was the moment I switched to Angband (and later Moria).
Angband and Moria were better, because these had a consistent theme, and that this was Tolkien-based added a lot for me.
But it still had too less story in it. And then I decided to start with LambdaRogue, which was in 2006.
So, all in all, the whole roguelike definition thing and roguelike preferences may strongly depend on your experiences with the genre and why you started to play roguelikes at all.