Child of the Platformer and the Dungeon Crawler. It ran away from home at an early age, maybe because it never got anywhere near as much attention as its sibling, the Metroidvania. Every so often it shows up at the house, maybe a little bit drunk, with some random game developer (almost never the same one twice). It might cause a bit of a scene before it leaves again, but never so much that it won't be forgotten before the next time. In spite of its issues, it's usually a pretty cool genre; just don't ask it about its family.