Mark IV assault droid

Sith assault droids were four-legged battle droids, presumably early technological predecessors of the Trade Federation droidekas. During the Jedi Civil War, the Sith Empire utilized different models of assault droids, some of them being provided with a bubble-like energy shield which rendered them especially effective against ranged weapons and lightsabers. However, unlike the later droidekas, assault droids could not roll; instead, they walked on their legs as any quadruped would.

Despite their name, assault droids were primarily used to guard their military bases, like those on Taris and Manaan. During actual assaults, the Sith preferred to rely upon more mobile forces, such as Sith troopers and ex-Republic war droids.

Appearances

 * Star Wars: Knights of the Old Republic