"We just couldn't wait," Double Fine president Tim Schafer said in a press reelase. "Villagers have surrounded our offices with torches, demanding the game. So we're releasing a demo and hope that this taste of metal will keep the mob at bay until Brütal Legend comes out this Rocktober."
The demo will be downloadable through Xbox Live and the PlayStation Network.
The game will launch in the U.S on October 13.
EA gave no indication about what the demo will contain, noting: "From the bowels of the druid dungeon to the tops of corpse mountains, the Brütal Legend demo is just the beginning of an epic journey."