Any live action film or animated production which has Koei's involvement or is an adaptation of the company's IPs. Recordings of live theatrical events can be included within this category.
This category will not include third party collaboration works if Koei's contribution is minor (e.g: Nobou no Shiro, Red Cliff, Neko Zamurai, etc.) nor will it include third party series which can be linked to thriving Wikipedia summaries or Wikia communities. If the said work lacks an appropriate Wiki summary which can be linked, it can be included here.