Jade Colossus: Ruins of the Prior Worlds is the latest supplement for Numenera published by Monte Cook Games. It’s a different sort of game supplement, at least in part. The titular location, the Jade Colossus, is one big dungeon delve which is a very important addition to the game line as Monte Cook Games itself has published many of those for Numenera. The other part of the book, though, is what I’m more interested in: an engine for generating ruins from previous worlds. Come for a quick run-down of what each part is like.