Nobunaga no Yabou : Shouseiroku

Nobunaga no Yabou: Shouseiroku for PlayStation is Koei’s 1997 historical strategy game, released in Japan on November 27, 1997. Known in Japanese as Nobunaga no Yabou: Shōseiroku, it is the seventh main entry in the long-running Nobunaga’s Ambition series. The game places its campaigns in Japan’s Sengoku, or Warring States, era, inviting players to take the role of a daimyō and pursue the era-defining goal of expanding a domain until Japan can be unified.

Shouseiroku frames that ambition from the viewpoint of a castle lord. Rather than separating its administrative work and warfare into disconnected play areas, it presents the country as one large tactical map. From this overview, a ruler surveys territory, directs domestic policy, and commits forces to military action. That design makes the condition of a clan’s land part of the wider strategic picture: decisions made to strengthen and manage a domain feed directly into the ability to contest neighboring powers.

The fundamental challenge is to balance expansion with stewardship. Players must judge where to concentrate attention, how to build up the position from which their clan operates, and when to turn local strength into a campaign against rivals. As control spreads across the map, the task grows from protecting a single base into managing an increasingly broad set of holdings. The setting draws on the rival daimyō of sixteenth-century Japan, so a game can follow the historical ambition associated with Oda Nobunaga or pursue unification under another regional lord.

On PlayStation, Nobunaga no Yabou: Shouseiroku brought this map-centered historical simulation to Sony’s console in a Japanese release published by Koei. It followed the Windows 95 original released earlier in 1997, while later versions appeared for systems including Sega Saturn, Dreamcast, PSP, and Macintosh. The PS1 edition was subsequently reissued in Japan under PlayStation the Best in 1999 and Koei Teiban Series in 2003. Those releases should not be confused with the later Shouseiroku with Power Up Kit edition, which is an expanded version rather than the original PlayStation release.

For players interested in a classic PlayStation strategy game, Shouseiroku stands out within Nobunaga’s Ambition for making the whole of Japan’s political and military struggle visible on a single grid-based national map. Its castle-focused perspective gives domestic development, territorial position, and war a shared stage, capturing why long-term planning matters as much as a successful offensive. It is a self-contained chapter in Koei’s historical-simulation lineage, built around the difficult process of turning a Sengoku clan into the power that rules the country.