Dungeon World uses the same engine that was used in what queer-friendly game about teenage monsters?
Dungeon World:  Created by Sage LaTorra and Adam Koebel, the game uses the Powered by the Apocalypse engine originally designed for "Apocalypse World" and used in "Monsterhearts" and other games. Monsterhearts: Monsterhearts is a game about "the messy lives of teenage monsters", developed from "Apocalypse World".
Monsterhearts