This is a list of

video game A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, game controller, controller, computer keyboard, keyboard, or motion sensing device) to generate visual fe ...

s developed and/or published by

Koei Tecmo is a Japanese video game, amusement and anime holding company created in 2009 by the merger of Koei and Tecmo. Koei Tecmo Holdings owns several companies, the biggest one of those being its flagship video game developer and publisher Koei Tecmo ...

, one of their internal development houses, or the pre-merger companies

Tecmo was a Japanese video game company founded in 1967. It had its headquarters in the Kudankita district of Tokyo. Its subsidiary, Tecmo Inc, was located in Torrance, California. Prior to 1986, Tecmo was formerly known as Tehkan. Tecmo is known for ...

(formerly known as

Tehkan was a Japanese video game company founded in 1967. It had its headquarters in the Kudankita district of Tokyo. Its subsidiary, Tecmo Inc, was located in Torrance, California. Prior to 1986, Tecmo was formerly known as Tehkan. Tecmo is known for ...

) or

Koei Koei Co., Ltd. was a Japanese video game publisher, developer, and distributor founded in 1978. The company is known for its historical simulation games based on the novel ''Romance of the Three Kingdoms'', as well as simulation games based o ...

. Some games were only published by Tecmo or Koei in a specific region or for a specific platform; these games will only list the publisher relevant to this list (i.e. Tecmo or Koei) and will be notated appropriately. Also, many games have different release dates for different regions, platforms, or re-releases. For the purposes of simplicity, and to ensure easy automated sorting, only the earliest date will listed on this table.

References

{{Tecmo Koei

Koei Tecmo games