New Discoveries offers may new challenges.
Underwater Cities: New Discoveries has a number of modules which are playable as an expansion to Underwater Cities.
• New asymmetric assistants and staring resource cards help speed up the game
• 52 new cards to add even more choices
• New 3-layered player boards upgrade the boards from the base game, pluse 4 new double-sided boards
• The Museum of Underwater Artifacts board offers enticing treasures
• New Metropolises provide even more variability from game to game