Nobunaga's Ambition: Sphere of Influence | oprainfall

KOEI TECMO America has released its first batch of details and assets for their newest title. In addition to its developed diplomacy system, Nobunaga’s Ambition: Sphere of Influence also boasts an expanded town evolution system, as well as maintenance on the roads and castles in your fief. For more details on the battle system and town assets, click here.





‘The supreme art of war is to subdue the enemy without fighting.’ – Sun Tzu, The Art of War


BURLINGAME, Calif.– August 6, 2015 KOEI TECMO America released today a wealth of new assets for upcoming famed strategy/historical simulation Nobunaga’s Ambition: Sphere of Influence, including a new trailer, which highlights the abundance of strategic options available to tacticians.

Using Diplomacy to improve foreign affairs is a key ingredient to building a powerful clan in Nobunaga’s Ambition: Sphere of Influence. Although it’s a slow-burning process that doesn’t provide the fast-paced, exhilarating action that battles do, Diplomacy can wield very fruitful results. For example, players can cultivate relationships with nearby clans and tribes to ensure they won’t take up arms or join enemy armies. Good diplomatic relationships with other lords can also lead to forging longer lasting alliances, or coalition armies against a common enemy. Prolonged good relationships might allow players to assimilate tribes into their clan, thus increasing the population and sphere of influence of their fief.

Additionally, diplomatic ties to the imperial court although costly can lead to an increase in rank through the award of nobility titles. These titles can be acquired on behalf of the clan lord or passed on by the lord to subordinate officers to increase their loyalty and provide a multitude of benefits, including an increase in influence and a decrease in cost for various diplomatic actions.

On the darker side of Diplomacy, players can assign officers to covert operations and espionage. These can include reconnaissance missions, or attempts to entice and create discontent amongst enemy officers. Keeping officer loyalty and satisfaction high is the only way to prevent NPC spies from leading officers away from the players’ clan and ensuring betrayal won’t hit from those closest to the top!

To view the all-new trailer for Nobunaga’s Ambition: Sphere of Influence, please visit

Nobunaga’s Ambition: Sphere of Influence is slated for release on the PlayStation®4 computer entertainment system across America on September 1, 2015. It will also be simultaneously available digitally on the PlayStation®3 computer entertainment system and on PC via Steam®.

For more Nobunaga’s Ambition: Sphere of Influence news and a first look at the newest trailer, please visit the official website at, Like KOEI TECMO America at, and follow KOEI TECMO America on Twitter @KoeiTecmoUS.


Celebrating its 30th anniversary this year, Nobunaga’s Ambition is one of the longest running franchises for KOEI TECMO Games, and during its lifetime the series has received high praise by an ever-growing fan base across an array of platforms.

The Nobunaga’s Ambition series is named after one of the most prominent and infamous figures of the Sengoku era (Warring States) of Japanese history, Nobunaga Oda, who fought to realise his dream of a united Japan and a new world. Though he fell before his dream was accomplished, he left behind a revolutionary legacy of castle towns, technological improvements, developing culture, modern warfare, a new system of economics, and much more.

Hailed as one of the best installments in the franchise’s history upon its release in Japan, the series’ latest chapter, Nobunaga’s Ambition: Sphere of Influence, is set against the backdrop of a fragmented nation. In this extremely intricate, deep, and meticulous strategy game, the player must take on the role of a Daimyo – a feudal lord of the Sengoku era (15th– 16th century Japan) – who will fight for the great ideal of uniting the war-ridden country under one rule, thus becoming the first Shogun.


KOEI TECMO AMERICA CORP. is a publisher of interactive entertainment software for current generation consoles, handhelds and digital download content based in Burlingame, California. The company is a wholly owned subsidiary of KOEI TECMO HOLDINGS CO., LTD., headquartered in Yokohama, Japan. KOEI is best known for its Dynasty Warriors® and Samurai Warriors® franchises. TECMO is best known for the Dead or Alive®, Ninja Gaiden®, Tecmo Bowl®, and Fatal Frame® series.

Justin Kersey
My name is Justin, and I graduated from Ball State University with a degree in history. The long tale of my love for gaming began when my dad brought a Super Nintendo to our house in the ancient year of 1992. I played Mario Paint, Super Mario World, and Donkey Kong Country in my early years. My love for games only grew when I got a Game Boy and Sega Genesis in the mid 90s. Before I knew it, I was in college watching youtubers like the Angry Video Game Nerd, applying my love of video games to my love for history. Soon, I began collecting as many video games as I could. My favorite genres are JRPGs, open-world survival games, and adventure games.