Caverna: The Forgotten Folk, started as a fan project on BoardGameGeek, and Caverna publisher Lookout Games then decided to work with the designer to create this material and release it as an official expansion. Forgotten Folk has eight different species or race packs including; elves, dark elves, and trolls, and now each player in Caverna can be one of these species instead of only the dwarves in the base game. Each species has unique advantages and disadvantages, and some species introduce new resources into the game. Each species has 4 unique rooms, and they replace rooms in the base game, which lets other players gain the powers of these species.