Daikoukai Jidai

Released by Koei in 1990, *Daikoukai Jidai* (Uncharted Waters) is a landmark maritime simulation that blends historical exploration with resource management. Set in the 16th century, players assume the role of Leon Ferrero, a young Portuguese noble striving to restore his family’s honor by trading, navigating uncharted seas, and engaging in naval combat. Featuring a celebrated soundtrack composed by Yoko Kanno, the game offers a high degree of freedom as players pursue wealth, fame, and royal favor across a sprawling world map. As the debut entry in a long-running series, it established the "Richaiation" style of simulation gaming that would define Koei’s influence in the genre for years to come.

Set against the backdrop of the late 15th-century Age of Discovery, Portugal and Spain are locked in a fierce competition to establish new global trade routes. Leon Ferrer, a 16-year-old living in 1502 Lisbon, vows to restore his disgraced noble family after his father vanishes at sea. Accompanied by the veteran sailor Rocco, Leon sets sail in a small vessel to build wealth and prestige through international trade and the exploration of uncharted lands. Navigating a treacherous world rife with rival powers, pirates, and political intrigue, he embarks on an epic maritime journey to clear his family's name and uncover the truth behind his father’s disappearance.