The challenge to prove your thieving skills has moved to new environments. You`d better know how to swim, as several rooms you`ll face have been completely flooded with water. Plus, of course, there`s always an angry dragon to avoid... In Sunken Treasures, an expansion for Clank! A Deck Building Adventure, players explore two partially flooded maps with new Dungeon Deck cards, a new persistent monster to defeat, and new environmental challenges as they venture in the watery depths.