Koei Tecmo Games Co., Ltd.

Koei Tecmo Games Co., Ltd. is the video‑game development and publishing unit formed from the long Japanese legacies of Koei and Tecmo following their 2009–2011 corporate integration. Operating from Japan, its antecedent Koei was founded by Yoichi Erikawa in 1978 and built strategy and historical simulation series such as Romance of the Three Kingdoms and Uncharted Waters; later Tecmo contributed action franchises including Dead or Alive and Ninja Gaiden. Under the merged group the company has continued to publish and develop Dynasty Warriors, Nobunaga’s Ambition and other titles across multiple platforms. The game entries below, including versions and later rereleases grouped in this archive, span systems such as NES, Windows, DOS, PlayStation, Wii, Nintendo Switch, Arcade, FM Towns, MSX, and Amiga.