Medieval Moves: Deadmund's Quest follows the story of Edmund, prince of a kingdom under attack by a skeleton army controlled by the malicious sorcerer Lord Morgrimm. After being transformed into a skeleton himself, Edmund seeks to reclaim his castle from Morgrimm before he can harness the power of a magical artifact and turn the entire kingdom into mindless skeleton warriors.
The gameplay in Deadmund's Quest takes place on-rails, allowing players to use both hands with the motion controllers to engage in combat using various weapons such as a bow and arrow, sword, shield, throwing stars, dynamite, and special powers activated by a magical amulet.