Dive deeper into the world of Root with the Underworld expansion, which adds two new factions and a new board. Play as: Underground Duchy – Lead your ministers on a righteous expedition into the Woodland to bring order to the endless war and chaos. Corvid Conspiracy – Use cunning and tricks to hold the Woodland hostage, and instigate plans to take control through terror. Play on the: Mountain Map – Traverse rocky outcrops, clear blocked routes, and hold the mountain pass to prove you are an effective leader. Lake Map – Glide across the map by traveling with the ferry and meet new friends and allies along the way. This is an expansion. A copy of the board game Root is required to play.