The TIE Crawler also known as the Century Tank was a tank used by the Galactic Empire during the Galactic Civil War. Although apart of the TIE Line produced by Sienar Fleet Systems, which mainly consisted of starfighters and other space/atmospheric vehicles the TIE Crawler was a ground vehicle. Using the TIE Lines iconic spherical cockpit as a base and attached to each side were tank treads that could rotate independently of the cockpit allowing it crawl over various forms of terrain.