Leviathan ( Interdictor - class cruiser ) The Leviathan was an " Interdictor " - class cruiser that served the Republic Navy during the Mandalorian Wars . By the outbreak of the Jedi Civil War , it had become the flagship of the former Republic Admiral , Saul Karath , as he served the Sith Empire of Darth Revan and , later , Darth Malak . The vessel was involved in a number of key battles in the latter conflict , including the Attack on the " Endar Spire " and subsequent blockade of Taris , as well as the skirmish that saw the death of its commander . History . As with the other capital ships of the Sith fleet , the " Leviathan " was originally a Republic Navy vessel . Apparently a distant technological ancestor of the later Star Destroyers , " Leviathan " was one of many similarly designed ships commissioned by the Republic for the Mandalorian Wars . The " Leviathan " was the only ship of its class to come out of the Corellian shipyards spaceworthy . The " Leviathan " was a 600 meter - long " Interdictor " - class cruiser , capable of wrenching ships out of hyperspace with the use of its four gigantic gravity - well projectors . While primitive by later standards , it was the pinnacle of interdiction technology in its time . It was also equipped with 20 quad laser cannons , a tractor beam projector , four turbolaser batteries and two ion cannons . Brought into the service of the Sith by the defector Saul Karath , the " Leviathan " housed two squadrons of Sith fighter s . It was likely the vessel from which Darth Malak attacked his master ' s ship , and rendered him unconscious before he was captured by the Jedi . Later , during Malak ' s search for Bastila Shan , he used the " Leviathan " ' s quad laser cannons to destroy much of Taris ' s Upper City . The tractor beam was utilized in another attempt to capture Bastila Shan , and also the reformed Revan , in which the beam was used to help board the " Ebon Hawk " and capture the two Jedi , who were taken to the prison block . After an intense interrogation , Revan eventually escaped and made his way to the bridge , which was located next to the command deck . The door to the bridge had been sealed , but Revan and his companions donned space suits and used an airlock that led to an external walkway that had access to the bridge . Once they secured the bridge , Revan , Bastila Shan and Carth Onasi killed Admiral Karath and deactivated the tractor beam holding the " Ebon Hawk " in the hangar . As Revan and his companions attempted to escape , they encountered Malak , and a lightsaber duel ensued between Master and apprentice . Malak ultimately gained the upper hand by catching Revan in Force stasis . Bastila , however , prevented Malak from killing Revan and insisted on holding off Malak so that both Revan and Carth could escape . The " Leviathan " was likely destroyed during the battle of Rakata Prime , as its computers listed the Star Forge as its destination when Revan sliced the systems to enable the " Ebon Hawk " to escape . After the loss of the " Leviathan " , the " Ravager " and many other " proto - Star Destroyers " to Revan and Malak ' s Sith Empire , the Republic abandoned the design , possibly due to lack of resources , and instead used capital ships more aesthetically in line with the peaceful ages of the Republic , such as the " Hammerhead " - class cruiser . Behind the scenes . At Taris , Darth Malak ' s conversation with Saul implies that there is an entire fleet orbiting the planet , but the " Leviathan " is the only cruiser that can be seen . This is true of the movies of the destruction of Taris , as well as the view from the bridge of the " Leviathan " . However , while manning the gun turret on the " Ebon Hawk " , a fleet of twelve ships is visible in orbit around Taris . These are clearly too large and immobile to be fighters . Judging from their shape , they appear to be Sith Interdictor Cruisers , the same class of ships as the " Leviathan " . According to John Jackson Miller ( who , however , was not involved in the development of the game ) , the name " Leviathan " was borrowed from the 18th - century " Leviathan " - class ships , whose design was based on the captured 74 gun warship " Courageux " . The latter name was used by Miller in the for the " Courageous " , Saul Karath ' s battleship in 3964 BBY ( which , however , was not of the same design as the " Leviathan " ) .