You love the finished floors and walls of Cardboard Heroes Dungeon Floors. But you long for something more . . . rustic? No problem! Cavern Floors expands your Cardboard Heroes collection with caves, twisty passages, rockslides, and more. It also includes "transition" pieces that let you combine cavern pieces easily with your Dungeon Floors. Concoct your own cavernous creations thanks to a download from Warehouse 23!