A specific kind of assault vehicle employed in the Republic Dark Age was known as a Death Spiral.
These Death Spirals possessed a cone-like shape and incorporated over twelve concentric rings. Each ring could rotate separately and was equipped with laser turrets and missile launchers.
The Sith Lord Chagras invented the Death Spiral, and he built multiple copies. Later, Chagras's nephew, Odion, created his own Death Spiral. This version was significantly larger than Chagras's models. Unlike Chagras's remote-controlled versions, Odion's Death Spiral was operated by live crews. Odion utilized this weapon in the Battle of Gazzari in 1032 BBY, where the Jedi Knight Kerra Holt ultimately destroyed it.