A hero descended of another great hero named Lotto steps up to the plate to battle a tyrant (name of villain varies with version: Sometimes DragonLord or Dracolord) that has kidnapped a princess and threatens world domination.
Did You Know?
Until the 2000s, Dragon Quest games were localized in America under the name Dragon Warrior. This is to avoid infringing on the copyrights of an American tabletop RPG game called DragonQuest. Ironically, there was a similar tabletop game called Dragon Warrior, though this didn't cause any legal problems. See more
Followed by Dragon Warrior III