In the 15th century, the Portuguese Prince Henry the Navigator (Henrique o Navegador) summoned the best cartographers and navigators of his time and instructed them to explore the shores of the African coastline . They thereby won expertise in navigation and shipbuilding, heralding the Age of Exploration and enabling Portugal to later to find a sea trade route to India and China. In the height of its power Portugal controlled the sea trade from Brazil to Japan and attained overwhelming wealth with the trade monopoly on spices.

The players represent wealthy trade dynasties that help to build up the Portuguese colonial empire. Tracing the routes of famous explorers they advance all the way to Nagasaki--but sailing into unknown waters is a dangerous venture. Founding colonies and building factories helps them to build up an economic base. But the prices for sugar, gold and spices fluctuate all the time, and only the trade dynasty that adapts to the market will be able to finance its lofty plans. Competing for new discoveries, colonies, shipyards, and churches it is very important to observe the actions of the other players.

Navigator for 2 to 5 players is a challenging strategy game with a little luck, because no-one knows exactly what to expect when discovering new sea regions. Player's turns follow simple rules and are executed on a rondel, which leads to a fluent play experience.