NEW CARDS − 52 cards will add new options to every deck.
NEW ASSISTANTS − New assistants, each with its own special ability, will make every underwater nation unique.
STARTING RESOURCE TILES − Starting resource tiles allow players to start the game with construction already underway, which speeds up the game by one round.
NEW PLAYER BOARDS − New player boards are used with new game variants. This expansion also includes the original player boards reprinted with upgraded quality.
NEW METROPOLISES − The green metropolises offer new benefits. They are used differently in different variants of the game, adding new strategic dimensions.
MUSEUM − At the bottom of the sea, you will make new discoveries which will earn your nation prestige as you help build the international museum.
Note: This is not a complete game and requires the base game to play.