Nobunaga no Yabou: Ranseiki is the ninth installment in the Nobunaga no Yabou series, launched in February 2001 for Windows 98. The game focuses on province acquisition and features a dynamic power system. It was later ported to PlayStation 2 and Xbox, with the Xbox version released as a launch title exclusively in Japan on February 22, 2002.
Nobunaga no Yabō: Ranseiki (信長の野望・嵐世記; Nobunaga's Ambition: Chronicle of a World of Storms) is the ninth title in the Nobunaga no Yabou series, released February 2001 for Windows 98. This game returned to province-taking battles, and the a system of varying powers was introduced. Ports for PlayStation 2 and Xbox were made later. It was released as a japanese only launch title on February 22, 2002.