
Samurai Warriors is the first title in the series of hack and slash video games created by Koei's Omega Force team based closely around the Sengoku period of Japanese history and it is a sister series of the Dynasty Warriors series, released for the PlayStation 2 and Xbox in 2004. A port of this game called Samurai Warriors: State of War has been released for the PlayStation Portable, which includes additional multiplayer features.

Samurai Warriors is a Japanese anime adaptation of Samurai Warriors 4-II. It takes place after the events of its previous animated TV special. Original characters appeared in this narrative to deviate from its base. Voice actors from the game reprise their roles for their respective characters.

Samurai Warriors 2 is a sequel to the original Samurai Warriors, created by Koei and Omega Force. The game was released in 2006 for the PlayStation 2 and Xbox 360, and ported to Microsoft Windows in 2008. Like the Dynasty Warriors series, an Empires expansion was released as well, and an Xtreme Legends expansion followed on August 23, 2007 in Japan. The game, alongside its two expansions, Xtreme Legends and Empires also receive a HD-enhanced port for PlayStation 3 and PlayStation Vita under the name Sengoku Musou 2 with Moushouden & Empires: HD Version.

Samurai Warriors 3 is the third installment in the Samurai Warriors series, created by Tecmo Koei and Omega Force. The game was released in Japan on December 3, 2009, in Europe on May 28, 2010, in Australia on June 10, 2010, and in North America on September 28, 2010, for the Wii.

Samurai Warriors 4, known in Japan as Sengoku Musou 4 (戦国無双4), is a hack and slash game by Koei Tecmo, and sequel to Samurai Warriors 3. Unlike past Samurai Warriors games, this one only has Japanese voice overs.

Samurai Warriors: Chronicles is a hack and slash video game developed by Omega Force and published by Tecmo Koei for the Nintendo 3DS. It was released as a launch title in Japan on February 26, 2011, in Europe on March 25, 2011, in North America on March 27, 2011 and Australia on March 31, 2011.

Samurai Warriors: Katana is an action video game set in feudal Japan and is based upon the Samurai Warriors series by Koei and Omega Force, a spin-off of the Dynasty Warriors series. The game was revealed for the Wii at Nintendo's pre-E3 conference under the name "Sengoku Action".

Samurai Warriors: Spirit of Sanada, known in Japan as Sengoku Musou ~Sanada Maru~ is a hack and slash game by Koei Tecmo through their development subsidiary, Omega Force. It is a spin-off of Samurai Warriors 4, part of the Samurai Warriors series, which in turn is a spin-off of the long-running Dynasty Warriors series, both of which are also hack and slash games. It was released on November 23, 2016 in Japan to coincide with the airing of the climax episode of the ongoing NHK TV taiga drama Sanada Maru. It was released in North America and Europe in 2017.