Heart: The City Beneath - RPG Core Book

Heart: The City Beneath - RPG Core Book - Rules of Play says:

Heart: The City Beneath is a tabletop roleplaying game about delving into a nightmare undercity that will give you everything you’ve ever dreamed of – or kill you in the process. It is a dungeon-crawling, story-forward tabletop RPG from the designers of Spire that focuses on what characters have to lose in pursuit of their dreams in the chaotic darkness beneath the world.