Eiyuu Senki: The World Conquest is the English version of the original Eiyuu*Senki console port. It has some scenes removed like the original PS3/PSV port. An improved version, Eiyuu*Senki GOLD or Eiyuu*Senki II, was later released in Japan. It has a new story and adds new characters, an item creation system, and an infinite dungeon. "In Eiyuu Senki - The World Conquest, the player finds themselves in an alternate world populated with famous characters of history and legend - who also all happen to be beautiful maidens - and must fight their way to world domination."

In a world where powerful nations run rampant and heroes battle one another for supremacy, the great nation of Britannia seeks to unite the world through peaceful means while the European Union has adopted an aggressive policy and the Seafaring Nation of Vinland thrives on pillage and plunder. Far in the east, the small nation of Zipang is stuck fast in a quagmire of civil unrest. In the midst of all this, our memory-loss stricken main character has a fateful meeting with a Hero of Yamatai, Himiko. Together they settle Zipang’s internal disputes and set off into a world covered with the burning embers of war.