Speaking of games like Souls games, I was watching a stream of a new one just game out today for PS4 (and will come to Vita and PC later in the year) named Salt and Sanctuary. It's very much Souls-inspired, with skill-based combat, explorations, map shortcuts, etc., but it's also its own thing The difference is that it's 2D, so it's sort of a Soulsvania in that sense.
What got me was one comment in the stream that basically said that Souls games in the first place are basically 3D *vania games in terms of layout. Kinda blew my mind.