Koei Games
It's the beginning of the 21st century and competition in the airline industry is heating up. As a young, ambitious CEO, it's up to you to make sure your airline is a survivor and not just another casualty. To succeed, you will have to make some tough decisions including where to fly, which planes to purchase and how to attract visitors to the cities you service. Your goal: to differentiate your airline from the rest while still turning a profit. Get ready to make some tough decisions! If you make the right ones, your planes will dominate the skies of the 21st century!
Kessen
Koei's feudal magnum opus strategy sim looked great on paper, but then we saw it in motion a couple months ago and had deep reservations about it.Aerobiz
It's a fascinating economic simulator for those who got tired of constant shooting and just want to use the brains.

Samurai Warriors
First, the combat system been expanded, adding a new flexibility with extra attacks provided by more powerful weapons, and extra attacks that can be split between both normal and charge moves.GemFire
Gemfire is a turn based strategy game where planning ahead is essential.


World War 2
Japan Strategy/War game in the setting of WWII.
Romance of the Three Kingdoms III
Romance of the Three Kingdoms III is a Historic Turn-Based Strategy game, developed and published by Koei, which was released in 1993.
Romance of the Three Kingdoms (1986)
Koei's Romance of the Three Kingdoms is a strategy role-playing game that’s based on a classic novel from Chinese literature.
Pacific Theater of Operations
P.T.O. is a WWII simulation on the Pacific. Relive this theater of war by either taking the side of the Japanese or Allied forces.

Nobunaga's Ambition
Nobunaga's Ambition is a Historic Turn-Based Strategy game, developed and published by Koei, which was released in 1993.

Romance of the Three Kingdoms IV: Wall of Fire
Players choose from one of six scenarios that determine the initial layout of power in ancient China.
Romance of the Three Kingdoms II
Romance of the Three Kingdoms II is a Historic Turn-Based Strategy game, developed and published by Koei, which was released in 1991.


Dynasty Warriors
Dynasty Warriors features the normal handful of fighters competing in the normal set stages.Ark Of Time
Unlike most adventure games, Ark of Time isn't set in some other dimension or medieval land. Instead, the game's quest takes place right here on good ol' Earth.P.T.O.: Pacific Theater of Operations II
P.T.O. is a WWII simulation on the Pacific. Relive this theater of war by either taking the side of the Japanese or Allied forces.
Romance of the Three Kingdoms III: Dragon of Destiny
Players choose from one of six scenarios that determine the initial layout of power in ancient China.
Genghis Khan II: Clan of the Gray Wolf
Let’s return in the times of great empires when the legendary Mongolian Emperor Chingishan conquered half of the world.
Aoki Gentyouhishi
In this strategy game you return in the times of great empires when the legendary Mongolian Emperor Chingishan conquered half of the world.
Air Manager
It’s a fascinating economic simulator for those who got tired of constant shooting and just want to use the brains.
Romance of the Three Kingdoms IV 32X
Romance of the Three Kingdoms V is a Historic Turn-Based Strategy game, published by Koei, which was released in Japan in 2001.