"NOBUNAGA’S AMBITION: Shoseiroku with Power Up Kit" is an expanded version of "NOBUNAGA'S AMBITION: Shoseiroku," which was released in 1997 as the 7th game in the series.
In Shoseiroku, the theme is "The Warring States from the viewpoint of a Castle Daimyou." In it, players the land of Japan is shown on a huge tactical map to portray the lord's ability to survey his demesnes from the top of his castle. Both domestic and military activities take place on that one map and players strive to unify the country under their own rule.