It also includes new red, green, yellow, and blue cards to shuffle into the deck, and when you get one of those cards, you can pay an additional cost to advance your ship of the matching color. Maybe you'll increase your navy, advance a ship of another color or find a source of raw materials !
-Incudes 24 new cards which offer a broader interaction with the other players
-A whole new way to play 7 Wonders is introduced with the addition of the naval board for each player
-Wage war on the high seas and affect each players with your decisions
-This is an expansion. A copy of the following is required to play: 7 Wonders