Koei was established in July 1978 by Yoichi Erikawa and Keiko Erikawa. Mr. Erikawa was a student at Keio University, and when his family's rural dyestuffs business failed he decided to pursue his interest in programming. The company to this day is located in the town of Hiyoshi, Yokohama along with Mr. Erikawa's alma mater, and the company's name is simply a spoonerism of the school's.

Kou Shibusawa and Eiji Fukuzawa, whose names are supposed to have made up the name of the company, do not really exist and are names used by the company to avoid giving credit to individual contributors, effectively acting as alter-egos for Mr. Erikawa.

Koei Co., Ltd. is a Japanese video game publisher and developer founded in 1978. The company is best known for its historical simulation games and female-oriented dating sims.

The company has also found success in a series of loosely historical action games

	Opoona Developer: ArtePiazza Publisher: Koei Japan	Savegames: 0 View all Savegames for this Game
	G1 Jockey Wii Developer: Koei Japan Publisher: Koei Japan	Savegames: 0 View all Savegames for this Game
	Samurai Warriors Katana Developer: Omega Force Publisher: Koei Japan	Savegames: 0 View all Savegames for this Game

Romance of the Three Kingdoms IV: Wall of Fire Developer: Koei Japan Publisher: Koei Japan

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