Malachor was a rocky, hellish wasteland planet located in the Chorlian sector of the galaxy’s Outer Rim Territories region. It was a planet shrouded in mystery, and the location of an event known as the Great Scourge of Malachor, which took place thousands of years before the rise of the Empire. The Great Scourge was an ancient battle at Malachor’s Sith temple between the Sith and the Jedi Order, which saw a superweapon activated, killing and petrifying all the participants of the battle, remaining for years after.