Wo Long: Fallen Dynasty is an eventful adventure that follows the adventures of an anonymous militiaman fighting for survival in a dark fantasy version of the late Han Dynasty, where demons torment the three kingdoms. The player will face demons as soldiers using his sword and Chinese martial arts and will try to overcome obstacles by awakening the power that lies dormant in him.

Wo Long, which means "crouching dragon" in Chinese, also refers to a hero or an important person who has not yet come to prominence. This story will be about officers who eventually become heroes, and will follow them through their “unknown” time. It will also be that of the rise of a protagonist who has not yet made a name for himself.