Marine Worlds introduces marine animals to your zoo! To accommodate them, you need to build aquariums, a new type of special enclosure. A new University allows you guaranteed access to 1 animal icon of your choice. For the 5 initial action cards, there are now 4 alternative versions, each with small bonuses! Replace 2 of your action cards with alternative versions at the beginning of the game to give yourself a familiar, yet different game.

Marine Worlds includes new Zoo cards, final scoring cards, and bonus tiles to mix with those of the base game. New wooden components for the Appeal, Conservation, and Reputation tracks and a set of wooden animals to be used for supporting conservation projects bring your Ark Nova game to life! Enhance your Ark Nova experience with Marine Worlds!