Darth Vader ' s castle Darth Vader ' s castle , also known as Vader ' s personal abode , was a stronghold located on the volcanic world of Mustafar . Once the site of a Sith temple , during the reign of the Galactic Empire it served as the personal residence of Darth Vader , a Sith Lord who wore life support armor after sustaining grievous injuries on Mustafar . Details . The castle occupied by the Sith Lord Darth Vader was constructed by Vader himself as a testament to his own might . It was located on the site of his greatest defeat , and was built over an ancient Sith cave . The complex ' s location and design came as much from the dark side of the Force as it did Vader ' s personal history . The central tower was constructed out of obsidian , and its tuning towers served as conduits for the dark side . Within , Vader maintained a bacta tank which he would rest inside . History . By the order of his Master , Galactic Emperor Palpatine , Darth Vader was forced to live in an obsidian tower ; built over an ancient Sith cave . The castle was located in the unforgiving environment of the volcanic planet of Mustafar . The Sith Lord ' s castle was completed as early as 5 BBY . By then , the Jedi fugitive Kanan Jarrus had heard rumors about Mustafar , specifically referring to it as a place where Jedi survivors were sent to die if captured by the Galactic Empire . Before Jarrus could be taken to the surface , however , he was rescued from the Star Destroyer " Sovereign " in orbit by his fellow rebels . Sometime between 2 BBY and 0 BBY , members of the Rebel Alliance conducted a mission to infiltrate an Imperial base near the castle . Once Alliance members were inside , they discovered a proto - saber , although Darth Vader was soon able to recover the lightsaber . After a brief engagement with Vader , the rebels were able to escape . In 0 BBY , Vader was meditating inside the bacta tank in his sanctum when Director Orson Krennic arrived . Sending Vader ' s assistant Vaneé to retrieve him , Krennic and Vader discussed the Death Star . Behind the scenes . Darth Vader ' s castle first appeared in the " Star Wars Anthology " film " " , which was released in 2016 . Inspired by unused Ralph McQuarrie sketches from , the design team for " Rogue One " gave the castle a tuning fork shape , leading director Gareth Edwards to suggest that it is " tuning the dark side . " The concept was also used for the Temple of the Kyber , which represents a mirror image on the light side . During the concept phase of , concept art titled " Vader Castle " was created by Erik Tiemens and Brett Northcutt , with the piece depicting TIE / IN interceptor s exiting a fortress near a river of lava . In " Star Wars " Legends , Darth Vader had similar abodes , including a palace on Coruscant and a castle on Vjun . In the " Rebels Recon " behind - the - scenes video for " Ghosts of Geonosis , " Pablo Hidalgo directly confirmed that Darth Vader ' s castle is specifically where Tarkin was taking the captured Kanan Jarrus in the Season One finale of " Star Wars Rebels " . At the time , the series only said that he was being taken to Mustafar , and that Kanan had heard it was " where Jedi go to die . " Even in Season One , Hidalgo knew that they were taking him to a castle Vader has on the surface - this wasn ' t established retroactively but was planned out . Hidalgo also directly established that Vader ' s castle was definitely constructed on Mustafar by the start of the series , but he stated that he wouldn ' t reveal exactly when and how it was built .