Explore the Waters of Nereus; a fabulous world with wonderful treasures in its vast seas. You lead a capable and talented crew. The captain determines the best direction to sail; the pilot and first mate maneuver the ship through the ocean; the purser controls your funds; the scientist performs important research; the merchant buys your treasures; and the boatswain controls the equipment.

The game consists of 6 rounds. In each round; a round card is flipped; showing how many crew members can be activated during the round. Players simultaneously choose a crew member to use; then; in turn order; perform the action. As you collect treasures; you can pay off the crew to score victory points; as well as gain additional actions.