TECMO KOEI EUROPE LTD. is a publisher of interactive entertainment software for current generation consoles, handhelds and digital download content based in Letchworth, Hertfordshire, UK. The company is a wholly owned subsidiary of TECMO KOEI HOLDINGS CO., LTD., headquartered in Yokohama, Japan. TECMO is best known for the DEAD OR ALIVEŽ and Ninja GaidenŽseries. KOEI is best known for its Dynasty WarriorsŽ and Samurai WarriorsŽ franchises. On April 1, 2009, TECMO KOEI HOLDINGS CO., LTD was established as a result of the TECMO, LTD. and KOEI Co., Ltd. merger.