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Published by Koei
54 games
Koei — company
- Aoki Ōkami to Shiroki MejikaReleased: 1985Developer: Koei
- Romance of the Three KingdomsReleased: 1986Developer: Koei
- Genghis KhanReleased: 1987Developer: Koei
- Romance of the Three Kingdoms IIReleased: November 2, 1990Developer: Koei
- Uncharted WatersReleased: April 5, 1991Developer: Koei
- CivilizationReleased: September 1991Developer: MicroProse
- Taiko RisshidenReleased: 1992Developer: Koei
- Genghis Khan II: Clan of the Gray WolfReleased: July 30, 1992Developer: Koei
- Romance of the Three Kingdoms III: Dragon of DestinyReleased: November 8, 1992Developer: Koei
- Winning PostReleased: 1993Developer: Koei
- Uncharted Waters II: New HorizonsReleased: February 25, 1994Developer: Koei
- Romance of the Three Kingdoms IV: Wall of FireReleased: December 9, 1994Developer: Koei
- Dynasty WarriorsReleased: February 28, 1997Developer: Koei Tecmo Holdings
- Sangokushi SousoudenReleased: December 11, 1998Developer: Koei
- Sangokushi InternetReleased: April 2, 1999Series: Romance of the Three Kingdoms
- Angelique TroisReleased: 2000Developer: Koei
- Romance of the Three Kingdoms VI: Awakening of the DragonReleased: March 31, 2000Developer: Koei
- Dynasty Warriors 2Released: August 3, 2000Developer: Omega Force
- Dynasty Warriors 3Released: November 26, 2001Developer: Omega Force
- Kurogane no Houkou 2: Warship CommanderReleased: 2002Developer: Microcabin
- Dynasty TacticsReleased: February 28, 2002Series: Dynasty Tactics
- Naval Ops: Warship GunnerReleased: April 3, 2003Developer: Microcabin
- Dynasty Tactics 2Released: June 26, 2003Series: Dynasty Tactics
- Romance of the Three Kingdoms XReleased: July 2, 2004Developer: Koei
- Dynasty Warriors 5Released: February 24, 2005Developer: Koei Tecmo Holdings
- Dynasty Warriors 5: SpecialReleased: February 24, 2005Developer: Omega Force
- Makai Kingdom: Chronicles of the Sacred TomeReleased: March 17, 2005Developer: Nippon Ichi Software
- La Corda d'OroReleased: November 10, 2005Developer: Koei
- Disgaea 2Released: February 23, 2006Developer: Nippon Ichi Software
- Naval Ops: Warship Gunner 2Released: February 23, 2006Developer: Koei
- Romance of the Three Kingdoms XIReleased: March 17, 2006Developer: Koei
- Dynasty Warriors Vol. 2Released: March 23, 2006Developer: Koei Tecmo Holdings
- Persona 3Released: July 13, 2006Series: Persona
- Samurai Warriors 2Released: November 16, 2006Developer: Koei Tecmo Holdings, Koei
- Uncharted Waters OnlineReleased: January 7, 2007Developer: Koei
- Warriors OrochiReleased: March 21, 2007Developer: Koei
- Winning Post 7 Maximum 2007Released: March 29, 2007Developer: Koei
- Dynasty Warriors DS: Fighter's BattleReleased: April 5, 2007Developer: Koei
- Samurai Warriors: KatanaReleased: September 20, 2007Developer: Koei Tecmo Holdings
- G1 Jockey 4 2007Released: November 1, 2007Developer: Koei
- Neo AngeliqueReleased: 2008Developer: Koei Tecmo Holdings
- Sangokushi OnlineReleased: February 29, 2008Developer: Koei
- Winning Post 7 Maximum 2008Released: March 13, 2008Developer: Koei
- Harukanaru Toki no Naka de 4Released: June 19, 2008Developer: Ruby Party
- Monster RacersReleased: January 22, 2009Developer: Koei
- Dynasty Warriors: StrikeforceReleased: February 26, 2009Developer: Koei Tecmo Holdings
- La Corda d'Oro 2Released: February 26, 2009Developer: Koei
- Dynasty Warriors 6Released: May 28, 2009Developer: Koei Tecmo Holdings
- Dynasty Warriors NextReleased: December 17, 2011Developer: Koei Tecmo Holdings
- Samurai Warriors 4Released: February 11, 2015Developer: Koei Tecmo Holdings
- Genghis Khan: Aoki Ookami to Shiroki Mejika IVDeveloper: KoeiSeries: Aoki Ōkami to Shiroki Mejika
- Kessen IIDeveloper: KoeiSeries: Kessen
- Kessen IIIDeveloper: Omega ForceSeries: Kessen
- P.T.O. IVSeries: P.T.O.Publisher: Koei