Japanese developer known for their games based on Japanese and Chinese history (Nobunaga no Yabou, Sangokushi, Sangokumusou, etc.) and Neoromance otome game series (Angelique, Harukanaru Toki no Naka de, etc.).
On April 1, 2009, KOEI and Tecmo merged under the new parent company TECMO KOEI HOLDINGS, and on April 1, 2010, KOEI and Tecmo were absorbed into TECMO KOEI GAMES and ceased to be independent developers.
KOEI continues to exist as a game brand and imprint under which TECMO KOEI publishes music
Company Name History 光栄マイコンシステム (KOEY) - founding to 1984 光栄 (KOEI) - 1984 to 1998 コーエー (KOEI) - September 1998 to present
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