Stormbringer (also sometimes written Storm Bringer) is an adventure game released by Mastertronic in 1987 under the Mastertronic Added Dimension label. It is the fourth and last of a series of games starring the character Magic Knight.
After being transported from the 25th century on board the starship USS Pisces back to his own time in the village of Cornhamp-on-Marsh, Magic Knight has discovered that a serious malfunction has occurred with the time machine, and there are now two Magic Knights. The other Magic Knight calls himself Off-White Knight, and is using a storm cloud to kill Magic Knight - hence Off-White Knight's alias, Stormbringer, which is the name by which the villagers know him. However, Magic Knight cannot kill Off-White Knight, as he would also kill himself if he did this. Instead, Magic Knight must somehow merge with Off-White Knight.