Zheng He: Admiral of the Ming Voyages

From BoardGameGeek:

Zheng He: Admiral of the Ming Voyages is a solitaire game that recreates the voyages of the Ming treasure fleets in the early 1400s. In the game you take the role of Zheng He, commanding the fleet as it sails the Indian Ocean, earning glory for the emperor, and keeping favor with the ministers of the court so the voyages can continue. Your goal is to score as many Victory Points as possible before the political will to continue the voyages runs out. Victory Points are earned by visiting ports, gaining envoys, winning battles, and completing special goals. You also earn Minister Points during each voyage by trading and having good relations with ports, which determine whether the game continues with another voyage, and also allow you to upgrade and repair the fleet, and recruit and train officers. —description from the publisher