"Card game for 2-4+ players. Theme: Commerce on the Mississippi River Basin using Riverboats in the early 19th Century." The game uses a custom deck composed of four types of cards: Cargo, Tributary, Boat, and Event Cards. The players score points by playing melds of Boat, Tributary, and Cargo Cards. The number of points scored for playing a meld varies from 1 to 7, based on the number of Cargo Cards the meld contains. The first player to reach twenty-five points wins the game.