NOBUNAGA'S AMBITION: Sphere of Influence
Developed by KOEI TECMO GAMES CO., LTD. · Published by KOEI TECMO GAMES CO., LTD.
At a glance
Overview
A strategy game by KOEI TECMO GAMES CO., LTD., published by KOEI TECMO GAMES CO., LTD. — single-player.
Steam’s own one-line description: “Become a Daimyo of the Warring States period of Japanese history in NOBUNAGA'S AMBITION, a historical simulation game of conquest and domination. It is the 30th anniversary of this series and this current release, NOBUNAGA'S AMBITION: Sphere of Influence, is the crown of the series.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for NOBUNAGA'S AMBITION: Sphere of Influence.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | Yes |
| Steam Achievements | No |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS: Windows®
- Processor: Pentium®4 1.6GHz
- Memory: 1 GB RAM
- Graphics: VRAM 128MB over
- DirectX: Version 9.0c
- Network: Broadband Internet connection
- Storage: 7 GB available space
- Sound Card: 48GHz/16bit
- Additional Notes: Shader model: Version 3.0, 1024 x 768 or 1280 x 720 minimum display resolution
Recommended
- OS: Windows®
- Processor: Core2 Duo 2.0GHz
- Memory: 1 GB RAM
- Graphics: VRAM 512MB over
- DirectX: Version 9.0c
- Network: Broadband Internet connection
- Storage: 7 GB available space
- Sound Card: 48GHz/16bit
- Additional Notes: Shader model: Version 3.0, 1024 x 768 or 1280 x 720 minimum display resolution
Supported languages (1)
NOBUNAGA'S AMBITION: Sphere of Influence FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is NOBUNAGA'S AMBITION: Sphere of Influence?
Steam classifies NOBUNAGA'S AMBITION: Sphere of Influence as a Strategy game, developed by KOEI TECMO GAMES CO., LTD.. Become a Daimyo of the Warring States period of Japanese history in NOBUNAGA'S AMBITION, a historical simulation game of conquest and domination. It is the 30th anniversary of this series and this current release, NOBUNAGA'S AMBITION: Sphere of Influence, is the crown of the series.
How much does NOBUNAGA'S AMBITION: Sphere of Influence cost?
As of June 2026, Steam lists NOBUNAGA'S AMBITION: Sphere of Influence at $59.99. Prices and regional pricing change — check the Steam page for the current figure.
Is NOBUNAGA'S AMBITION: Sphere of Influence single-player or multiplayer?
Steam lists these modes for NOBUNAGA'S AMBITION: Sphere of Influence: Single-player. It lists a single-player mode.
Is NOBUNAGA'S AMBITION: Sphere of Influence on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists NOBUNAGA'S AMBITION: Sphere of Influence for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is NOBUNAGA'S AMBITION: Sphere of Influence out yet?
Yes — Steam lists a release date of Sep 1, 2015.
What platforms is NOBUNAGA'S AMBITION: Sphere of Influence on?
NOBUNAGA'S AMBITION: Sphere of Influence is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is NOBUNAGA'S AMBITION: Sphere of Influence single-player or multiplayer?
Steam lists these modes: Single-player.
How much does NOBUNAGA'S AMBITION: Sphere of Influence cost?
Steam lists it at $59.99.
What is NOBUNAGA'S AMBITION: Sphere of Influence's Metacritic score?
NOBUNAGA'S AMBITION: Sphere of Influence has a Metacritic score of 70/100, per the Steam store listing.
Who made NOBUNAGA'S AMBITION: Sphere of Influence?
NOBUNAGA'S AMBITION: Sphere of Influence is developed by KOEI TECMO GAMES CO., LTD. and published by KOEI TECMO GAMES CO., LTD..
Where to get NOBUNAGA'S AMBITION: Sphere of Influence
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, KOEI TECMO GAMES CO., LTD..