In Braindead 13, the player takes on the role of a young computer expert who one day is called to fix a computer at some scary castle and in no time flat, finds himself in trouble. It is up to the player to use the complex moves of an interactive movie to escape from the castle. This animated adventure is basically based on the player's judgment on which direction you think the character might go, and if the player guesses wrong, death.

Lance, a young computer expert, is called to fix a computer at a scary, dilapidated castle. After repairing a large super-computer, Lance learns that his client, the disembodied brain of Dr. Nero Neurosis, has a diabolical plan to take over the world. After calling Dr. Nero average he quickly finds himself in trouble, being chased around the castle by Dr. Nero Neurosis's psychotic servant Fritz. The player must guide Lance through the castle in order to defeat Dr. Neurosis and escape with his life.