World Devastators were gigantic machines with strong tractor beams attached to them, employed by one of Emperor Palpatine's clones in the fictional Star Wars universe. They would land on the surface of a planet, and the tractor beams would literally tear the planet beneath them apart, and then consume it, thus making them planet killers.

The deconstruction of the planet and its resources would then be used for both fuel for the Devastator and for manufacturing starships, fighters, and droids over a period of a few months. Eventually the planet will become a debris field.

These machines shields were so strong that not even concentrated turbolaser fire could penetrate them, and most times any conflict with another enemy ship would result in the consumption of that ship by the World Devastator. They first saw action in the Battle of Mon Calamari where they were used by the reborn Emperor Palpatine against Mon Calamari which was the temporary capital of the New Republic after the Imperial Remnant recaptured Coruscant. There they devoured many of the Mon Calamari floating cities and recycled them to make Droid TIE Fighters and Wavewalkers.