Nobunaga no Yabou: Sengoku Gun'yuuden (信長の野望・戦国群雄伝; Nobunaga's Ambition: Tales of the Sengoku Warlords) is the third title in the Nobunaga no Yabou series, released December 1988 for PC-88, then quickly ported for various japanese computers. Taking after the Romance of the Three Kingdoms series, this game introduces the concept of "generals" to this series. The Tōhoku and Kyūshū areas were removed. Releases for Family Computer, PlayStation, Sega Saturn, Windows, and mobile phones were made subsequently. The U.S. Nintendo Entertainment System release was titled Nobunaga's Ambition II.
The Game Boy Color version released in Japan in 1999 is also based on this game.