Wormbrain is a goblin in Port Sarim Jail that the player must barter with, paying 10,000 coins, or attack for the third map part of the Crandor map during the Dragon Slayer I quest. Lowering his Hitpoints to 0 causes him to say, "Ow!", and drop the map part, which Telekinetic Grab must be used on to acquire.
Wormbrain, along with a small band of goblins, decided to ransack Lumbridge. While doing so, they killed Lozar, an elderly mage and the second last surviving Crandorian. In the rubble, Wormbrain found a box which he tried to open, while the others left Wormbrain to the guards and fled.
Appearance until 26 September 2005
Appearance until 24 April 2007
- Originally in Dragon Slayer I, players had no choice but to kill Wormbrain and use Telekinetic Grab to get the map part
- When his hitpoints reach 0, you will receive a message that says, "You have just beaten Wormbrain up. Give the poor goblin a break".