Dynasty Warriors 7 is a hack and slash video game and the seventh official installment of the Dynasty Warriors series. It is developed by Omega Force and published by Tecmo Koei. The story is based on the 14th-century Chinese historical novel Romance of the Three Kingdoms. The game was unveiled at the 2010 Tokyo Game Show. On 26 October, it was revealed at the Koei Press Conference to have improved graphics and gameplay, with the support of stereoscopic 3D. Tecmo Koei released it in North American on 29 March 2011, in Europe on 8 April 2011 and in Australia on 14 April 2011, after news that it has been delayed and was released on both the PlayStation 3 and Xbox 360. Tecmo Koei Japan had released Dynasty Warriors 7 with Xtreme Legends, along with downloadable content up to October 2011 released on PlayStation 3 version, on Microsoft Windows. It was later released worldwide in December 2018 via Steam. as Dynasty Warriors 7: Xtreme Legends Definitive Edition.

Guo Jia, courtesy name Fengxiao, was an adviser to the warlord Cao Cao during the late Eastern Han dynasty of China. Throughout his 11 years of service, Guo Jia aided Cao Cao greatly with his brilliance and foresight, and his strategies were instrumental to Cao Cao's triumphs over rival warlords such as Lü Bu and Yuan Shao. For example, four years before Cao Cao's decisive victory over Yuan Shao at the Battle of Guandu, Guo Jia already foresaw that Cao Cao would win when he pointed out ten advantages Cao Cao had over Yuan Shao.