Christophsis / Legends Christophsis was a crystalline world in the Outer Rim Territories ' Savareen sector . Orbited by a single moon amongst the mineral - rich asteroids of the Christoph system , Christophsis was for a time a target for stray rocks because of its closeness to various asteroid belt s , but the planet was refined by Tepasi nobles around 600 BBY , and later by the world ' s native Christophsian inhabitants , who originated as Humans from the Core . Christophsis was eventually protected from the asteroids and transformed into the center of a mining hub . By the time of the Clone Wars , the Christophsians ruled their homeworld in a mercantile oligarchy and had established Chaleydonia , also known as Crystal City , as their planet ' s capital . Various species also immigrated to the world , including Rodians , Kerkoidens , and lower - caste Humans who came to serve the Christophsians . All of the Christophsians ' hard work was ultimately crippled when the Separatist - backed Retail Caucus conglomerate seized Christophsis in the first year of the Clone Wars , with the feared Admiral Trench blockading Christophsis and General Whorm Loathsom subjugating the Christophsian people . Although a Jedi - led battle group from the Grand Army of the Republic eventually liberated Christophsis , the costly Republic victory reduced several key cities to rubble . The Separatists later returned to the planet to mine for its crystals to fuel their new superweapon , the " Devastation " , a plot that was halted by Senator Padmé Amidala and the Jedi Order . Eventually , with the establishment of the New Order , Christophsis became a reluctant member of the Galactic Empire , but ignored all of the following galactic governments . Description . Situated on the major Corellian Run hyperlane and close to the planet of Rodia , the Outer Rim world of Christophsis was the only planet in the Savareen sector ' s Christoph system with an atmosphere that could support life . Christophsis orbited the star of Christoph with its single moon as a companion and had a temperate climate and a terrestrial terrain . The planet was famous for the beauty of its nearby asteroid belt s — the Barren , the Hammers , and the Halo — but its location close to the asteroids often made it a target for stray rocks . Foodstuffs were one of the planet ' s few imports , but the asteroid belts of the system were abundant in raw materials . Among the planet ' s other exports were artwork and industrial goods . Christophsis was covered in massive green - blue hexagonal crystals , which were also suitable for use as lightsaber crystal s . The inhabitants of Christophsis took advantage of the natural spires , building cities into and around the crystalline formations and using the crystals ' solid structures for foundation and support ; the size of the world ' s buildings often varied with the size of their supporting crystals . Some of the world ' s cities were so large that they could be seen from space . From time to time , solar storms ripped through the upper atmosphere of Christophsis . History . The mining hub . Christophsis was ruled by a mercantile oligarchy , and for milennia , the planet ' s asteroid belts proved beautiful to observers and dangerous to those that tried to profit from mining them . The belts were chaotic , and stray rocks regularly found their way to Christophsis , often with abrupt and destructive entrances . Around 600 BBY , a family of Tepasi nobles made the investments necessary to transform the star system into a worthwhile mining concern . Over the course of a century , the planet ' s native Christophsian inhabitants hired Givin mathematicians to plot the courses of numerous asteroids in order to eliminate those that proved a threat to their homeworld . The Christophsians also paid Verpine technologists to refine starship and mining technologies that would allow people to work in the dangerous asteroid belts . Both came at a massive expense , but the Christophsians ' investment in the aliens ' services paid off when repositories of chanlon , hfredium , quadrillium , and Nergon - 14 minerals were found to be abundant in the surrounding asteroids . Unwilling to share their profitable materials with their accomplices , the Christophsians hired the best Vippit lawyers to disenfranchise their Givin and Verpine partners . The planet ' s inhabitants renamed the system to " Christoph " in their own honor , and the system ' s richness in raw materials eventually transformed it into a mining haven . The world ' s natural crystals were also used as exports . Clone Wars . By the time of the galaxy - wide Clone Wars , the Christophsis oligarchs ' mining expertise and manipulation of mineral markets had , albeit grudgingly , won admiration from the rest of the galaxy . However , the Christophsian rulers were also viewed with suspicion for their secrecy and self - absorption . High - ranking members of the Mining Guild that visited the system were rarely invited to Christophsis itself , and were instead received in the Halo ' s utilitarian space habitats . The Christophsians ' ways became so developed that the planet ' s populace was rumored to live luxurious lives and enslave Rodian and Kerkoiden immigrants and lower - caste Humans . The city of Chaleydonia , more commonly known as Crystal City , served as the capital of Christophsis . Confederacy invasion . In 22 BBY , after the Clone Wars had begun , the Confederacy of Independent Systems invaded Christophsis , seeking to force the crystalline planet into joining its cause . The oligarchy abandoned the population , and over a massive holotransmission , the Confederate General Whorm Loathsom — the leader of the army of the Retail Caucus , a conglomerate of the Confederacy — ordered the planet ' s inhabitants to submit to Separatist rule . At some point after the Confederacy ' s invasion , a squad of clone troopers was sent to Christophsis to retrieve datapacks before the Separatists could get their hands on them . As the Christophsians unsuccessfully attempted to defend their home against the Separatist Droid Army , they appealed to the Jedi High Council for assistance , and a faction of the Grand Army of the Republic was dispatched under the command of Jedi Generals Obi - Wan Kenobi and Anakin Skywalker to liberate the Outer Rim world . By the time the Jedi had broken through the Separatist blockade surrounding Christophsis and landed their ground troops on the planet , the civilian population had already fled . The Republic forces landed in Crystal City and set up a base . Clone Sergeant Slick and his platoon of clone troopers were sent to reconnoiter a suitable location from which to ambush the Separatist battle droids . Locating a business center with towers facing the north and south and overlooking a major plaza , Sergeant Slick and his men headed back to the Republic base . On its way back , the squad came across B1 battle droids that were attempting to clear one of the city ' s main boulevards of Christophsians . The battle droids discovered a crippled refugee and discussed killing the man , but the Christophsians diverted the droids ' attention to the clones , who intervened and eliminated the droids . After returning to the base , however , Slick — who had become fed up with his position in the Grand Army as a virtual slave to the Jedi and become a Confederate spy — secretly transmitted the Republic ' s intended battle plan to General Loathsom and the Dark Acolyte Asajj Ventress , who had arrived on the planet . Preparing to ambush the Confederate droid forces , Kenobi , Clone Commander CC - 2224 , and Slick stationed their men in the South tower , while Skywalker and Clone Captain CT - 7567 were based in the parallel North tower . Acting on Slick ' s information , a squad of B1 battle droids ambushed Kenobi in the South tower , and Skywalker ' s men used grappling hooks to traverse the gap between the buildings and enter the adjacent South tower . The Republic forces were able to escape from the roof of the South tower via clone pilot Hawk ' s LAAT / i gunship . Back at the Republic base , CC - 2224 and CT - 7567 — nicknamed Cody and Rex , respectively — examined the stolen cranial unit of a Confederate tactical droid , but the droid only confirmed that the Confederacy had been aware of the Republic ' s plan before it stopped processing . Suspecting that there was a traitor amongst their troops , Skywalker and Kenobi left on a mission to infiltrate enemy lines to search for the instigator behind the ambushes , while Rex and Cody stated to find the Confederate spy . Arriving at a 23 - story mansion that the Separatists had taken over and made headquarters out of , Skywalker and Kenobi were greeted by Ventress , and engaged the Dark Acolyte in a lightsaber duel . Luring the Jedi to the roof of the building , Ventress revealed a massive battle droid army in greater size than the Republic had originally believed , stating that the Confederacy was preparing to assume control of the world . The two Jedi briefly continued the duel before fleeing on stolen Single Trooper Aerial Platforms , and Ventress relayed orders through a tactical droid to Loathsom . Ordering the Kerkoiden general to march on the city , the Dark Acolyte left the planet in her ship , the " Trident " , to execute a mission for her Sith Master , Count Dooku . Meanwhile , having traced an irregular wavelength to a terminal in Sergeant Slick ' s barracks , Cody and Rex proceeded to individually interrogate Slick ' s men , believing that one of them was the traitor . Slick himself was eventually revealed to be the spy , and managed to sabotage the Republic ' s weapons depot , gunship landing platform , and AT - TE walkers with several pre - planted explosives . Cody and Rex fought the Separatist spy in the base ' s command center and apprehended the clone turncoat . As dawn broke on Christophsis , the Jedi returned , and although the Republic forces were only able to salvage their artillery guns from the destroyed weapons depot , they regrouped and prepared to fight the Confederacy . The Confederacy launched an attack on the Republic forces in Crystal City , and Kenobi and Skywalker fought the first wave of Loathsom ' s battle droids . After several days , the Confederacy was forced to retreat , but the initial stages of the battle caused many Christophsian civilian casualties . Soon after the Republic cruiser " Hunter " — under the command of Admiral Wullf Yularen — was dispatched for supplies , Loathsom and his droid forces launched another assault , marching straight through the main street of the city toward the Republic forces . While Skywalker , Rex , and the Torrent Company unit made their way through sidestreets and behind the droid lines , surprising several advancing Octuptarra magna tri - droid s from above , Kenobi led Ghost Squadron in a charge on the Separatists ' front lines . With the Republic ' s artillery cover , Loathsom was forced to retreat once more . A shuttle arrived from the galactic capital of Coruscant and landed in City Plaza , but in place of the Republic ' s expected reinforcements was young Padawan learner Ahsoka Tano , who had been recently apprenticed by Jedi Grand Master Yoda to Skywalker . From the Star Destroyer that had delivered Tano , the Jedi contacted Master Yoda — who had been unaware of their predicament of being stranded on Christophsis — and requested reinforcements , but the Star Destroyer was damaged under increasing fire from the Confederate blockade surrounding the planet and was forced to retreat . Loathsom launched yet another attack , this time advancing his forces in two groups from the south and the east . Kenobi and Alpha Squad halted the south force ' s approach , but Bravo Squad was unable to stop the east force ' s advance . The Separatists advanced behind an expanding deflector shield , which effectively negated the Republic ' s use of long - ranged artillery . Kenobi and Rex marshaled a defense of the Republic base , while Skywalker and Tano infiltrated the droid lines to destroy the shield generator . The shield soon passed over the Republic forces in Crystal City , and Kenobi led the clones to attack the droids , attempting to draw the Confederacy into the buildings and gain an advantage over them . While Kenobi pretended to surrender to Loathsom in order to gain time for Skywalker and Tano , Captain Rex retreated to defend the heavy cannons with the rest of the troops . After fighting LR - 57 combat droids that were guarding the generator , Skywalker and Tano were able to plant explosives and destroy the generator . As the shield receded , Kenobi captured Loathsom and took the Kerkoiden captive . Returning to Christophsis in the " Spirit of the Republic " and several other Attack Cruisers , Admiral Yularen finally arrived with reinforcements and was able to break through the Confederate blockade , forcing the enemy armada to retreat . The Republic cruisers landed , along with several clone trooper units as further reinforcements on the liberated Christophsis . However , the costly Republic victory had reduced several key cities to rubble , leaving many in the galaxy secretly cheering the damage that had been done . Crystal mining . Later in the war , the Separatist Droid Army set up a base near the planet ' s core to mine for its crystals . Because Christophsis ' s crystals could be used to power lightsabers , the Confederacy planned to use them to power its new superweapon , the " Devastation " , which was powered by Force - activated crystals . After the Republic starship " Sedawan " supply of lightsaber crystals was raided , the Jedi Council began to come onto the Confederacy ' s plan . During the analysis of data provided by the turncoat Nightsister Ros Lai , the Jedi Council enlisted Senator Padmé Amidala ' s help . Traveling to Christophsis with Captain Rex , the astromech droid R2 - D2 , and the protocol droid C - 3PO , Amidala discovered that the Confederacy was mining for something and reported her findings to the Council . Before the group could leave the planet , however , their ship was shot down , and Captain Rex was injured in the crash . The group was taken captive and placed in a holding cell inside the Separatist base . A team of two Jedi was sent with Clone Commander CC - 1004 , nicknamed " Gree , " and an LAAT / i gunship to rescue Senator Amidala . However , the gunship was shot down over the planet as well and skidded toward the edge of a cliff . Gree told the two Jedi to continue the mission themselves , and the LAAT / i soon dislodged from the cliff and plummeted into the depths of Christophsis . Unable to help Gree , the Jedi entered the Separatist base and began to search for Amidala . Fighting DSD1 dwarf spider droids and several of the dark side – wielding Nightsisters themselves , the two Jedi discovered that a few of the Christophsis crystals were harnessing the Force itself . On the exterior of the facility , the two Jedi fought a group of Nightsisters before Commander Gree — having recovered his gunship — and his vessel arrived and opened fire on the dark side practitioners , defeating them . The Jedi ordered the clone commander to find a nearby landing site while they continued the search for Senator Amidala . Re - entering the Separatist base , the two Jedi fought more Nightsisters before finding and freeing Senator Amidala , Captain Rex , R2 - D2 , and C - 3PO from their holding cell . Amidala reported that they had overheard the Separatists confirming that they were harvesting crystals from the planet core , and the Jedi questioned why the Confederacy was after lightsaber crystals — first the " Sedawan " cargo of lightsaber crystals had been stolen , and now the Confederacy was mining on Christophsis . While Amidala took Rex , who had been injured when the ship crashed , to Gree ' s transport , R2 - D2 and C - 3PO stayed with the Jedi to assist in the continuing investigation . The two Republic droids went to find the facility ' s central computer , but were discovered by B1 battle droids and forced to pose as configuration droids . R2 - D2 and C - 3PO regulated the temperate of a large crystal , but were also able to gain and transmit the coordinates of Gree ' s gunship — which had been forced to relocate itself — to Amidala . Elsewhere in the facility , the two Jedi were ambushed by battle droids . From a computer terminal , R2 - D2 and C - 3PO opened a door and provided the Jedi with an escape , and also discovered the location of the " Devastation " , which they immediately sent to the Jedi Council . The pair of Jedi were then confronted by B1 battle droids , and the two Republic droids accidentally stumbled across a boss miner droid . R2 - D2 and C - 3PO trapped the mining droid in the hallway it was advancing through before activating a mechanism that squashed the B1 battle droids attacking the Jedi . With their battle droid adversaries disabled , the two Jedi found the " Sedawan " stolen lightsaber crystals before Count Dooku himself appeared and escaped with the supply of crystals . Thanks to the discovered location of the " Devastation " , a team of Jedi managed to infiltrate and destroy the battleship . Post – Clone Wars . In 19 BBY , Supreme Chancellor Palpatine transformed the Republic into the first Galactic Empire , and Christophsis became a reluctant but compliant member of the new government . However , the Outer Rim world remained independent of the New Republic and any future governments , all but ignoring the following galactic powers . Inhabitants . The native inhabitants of Christophsis were the brown - skinned Christophsian humanoids . An arrogant people , the Christophsians hired aliens to help make their homeworld safer and advance mining - related technologies , but in an attempt to preserve their own profits , the Christophsis natives marginalized their partners after the surrounding asteroids were discovered to be rich in minerals . A commercially - concerned Christophsian oligarchy ruled Christophsis , and the world ' s leaders displayed their prowess in both manipulating the mineral markets and mining . Humans and alien species — including Rodians and Kerkoidens — were among the sentients that immigrated to Christophsis . Rumors spread through the galaxy that the immigrants were little more than prisoners of the dominant and wealthy Christophsians , catering to their every need and doing their menial work . The people of Christophsis spoke Galactic Basic Standard and Rodese . Locations . Several of Christophsis ' s cities could be seen from space as green , branching - out networks . The planet ' s cities included Chaleydonia , its capital city , which bore the more common name of Crystal City . As its name suggested , Crystal City appeared to be carved out of glittering gems . With the majority of its buildings built using crystals , the city was home to skyscraper residences and apartment buildings , as well as a few plazas . The main site of the Battle of Christophsis , the Confederacy and Republic were eventually both based in the city , with the former making headquarters out of a 23 - story mansion . However , many parts of Crystal City were reduced to ruins during the Republic ' s liberation of the planet . Several bridges ran through the city , but many collapsed in the Separatist invasion . Numerous buildings , particularly along the city ' s central street , were also toppled and destroyed during the intense battle on the world . During the initial stages of the Battle of Christophsis , the Republic set up a networked base on the planet before later moving directly into Crystal City . The base included a command center , a mess hall , and barracks for the Republic clone troopers . When the Separatists returned to Christophsis to mine for lightsaber crystals , they set up a base that ran deep underneath the surface of the world . Located close to the planet ' s core , the large facility was guarded by several battle droid squads . Behind the scenes . Christophsis was a planet created for the 2008 . It was originally to appear in a " flashback " episode entitled " The New Padawan , " but after George Lucas decided to debut the series in a , the episode was moved to its proper chronological placement . The site of Anakin Skywalker ' s first meeting with his newly assigned Padawan , Ahsoka Tano , Christophsis appears in the movie ' s promotional material , including the online " " game and several young reader adaptations of the film . The episode entitled " The Hidden Enemy " was later produced at Lucas ' s request to expand Christophsis ' s backstory and was aired with the television series ' first season . Christophsis also appeared in the " " , which led into the episode . The planet was given roles in the 2008 Nintendo DS video game " " , as well as in the Nintendo DS edition of the 2009 " " game , which expanded the events of " The Clone Wars " film and television series . Elements of Christophsis and its history were published in 2009 ' s " The Clone Wars Campaign Guide " and " The Essential Atlas " . The crystalline appearance of Christophsis was based upon previously abandoned concepts of the planet Mygeeto made during pre - production for . The same concepts were later used in designing the planet Mandalore for the television series ' second season . " Republic Heroes " Nintendo DS edition inconsistencies . One of the two missions depicting the Battle of Christophsis in the Nintendo DS version of " Republic Heroes " greatly contradicts " The Clone Wars " film and television series . The mission features Senator Padmé Amidala and Anakin Skywalker arriving at Crystal City to investigate droid activity in the sector recently lost by the Republic . Skywalker and Amidala travel through the city until they face a force field blocking their way . Master Yoda then assists them by deactivating the field , and the two continue their way , eventually confronting Count Dooku inside a Christophsian building . After a duel with Skywalker — whom Amidala assists with her blaster — Dooku retreats . During the duel with Dooku , however , Skywalker informs the unaware Count that the Confederate General Grievous plans to obtain a superweapon from beneath an ocean of lava on the planet Mustafar . Skywalker finds out about Grievous ' s plans only during the Mission to Skytop Station , which takes place after the Battle of Christophsis has been already won by the Republic . Because of such confusing storyline that would take too much speculation to implement into the pre - existing story , this article assumes that the video game ' s mission is non - canon .