Delve deeper into the world of root with the Underworld Expansion, which adds two new factions and a new board.Play as the:Underground Duchy - Sway your ministers to lead a righteous expedition to the Woodland, bringing order to the unending war and chaos above.Corvid Conspiracy - Use cunning and trickery to hold the Woodland hostage, instigating plots to seize control through terror.Play on the:Mountain Map - Trek across outcroppings, clear blocked routes, and hold the mountain pass to show you are an effective leader.Lake Map - Whisk yourself across the map by travelling on the ferry, meeting new friends and allies along the way.