Escape from Iokath Following the assault on the Gravestone by Eternal Empire Empress Vaylin , both Alliance and Zakuul an forces were captured on Iokath by ARIES and had to fight his army of droids to regroup and reclaim their starships to escape from Iokath . Alliance forces regrouped with each other after Theron Shan restored their communications and managed to remotely pilot a shuttle left in the hangar of the " Gravestone " . Eternal Empire forces suffered heavy losses from the hostile droids of Iokath , but after Vaylin found her men and rallied them behind her , they were able to find and release captured Eternal Fleet warship s . SCORPIO , herself an Iokath creation who had betrayed both Vaylin and the Alliance after working with them in the past , uncovered the history of Iokath and revealed ARIES , the only self - aware droid on the planet , as their biggest threat , capable of killing everyone . After ARIES lowered a planetary shield that prevented any vessel from escaping , the location of ARIES base was revealed to both SCORPIO and the GEMINI captains , and the Alliance stormed the base to confront ARIES , while the Eternal Fleet bombarded the fortress from above . SCORPIO arrived to help the Alliance Commander and Vette defeat ARIES , and was repaid by allowing her consciousness to merge with Iokath . Soon afterwards , the capacitors on ARIES ' superweapon overloaded , and covered the entire world in a pulse of deadly radiation . The " Gravestone " just barely managed to escape to hyperspace , as did Vaylin with the majority of the Eternal Fleet , but Iokath itself became inaccessible for the time being . Prelude . Iokath , a massive self - sustaining ecosphere that completely engulfed an entire star , remained unknown and invisible to the larger galaxy ever since the Iokath species wiped itself out in a civil war . The only remaining sentient inhabitant remaining on the technological wonder was ARIES , a hyper - intelligent droid who used other droids as slaves to remade the world in his image . Only a few visitors stumbled upon Iokath over more than three thousand years , and none have survived to escape . During the revolt against the Eternal Empire SCORPIO , herself an Iokath creation with her memories of it removed , managed to unlock the origin of herself , the " Gravestone " and the Eternal Fleet and brought all of those vessels to Iokath . The Eternal Fleet was crewed by the GEMINI captains and a large number of Eternal Empire personnel , while the " Gravestone " brought key figures of the Alliance that opposed Zakuul and its Eternal Empress Vaylin . As the vessels approached and entered Iokath , ARIES activated a superweapon that emitted a bright light and knocked everyone aboard the ships unconscious . He then arranged and placed them across Iokath surface to test in various combat scenarios , isolating Vaylin and SCORPIO as the most dangerous ones . The escape . One by one , Alliance and Eternal Empire personnel awoke on the surface of Iokath separated from each other . Some were assisted by Iokath remotes , and all came under attack by Iokath droids of various design , repurposed by ARIES to show aggression towards any foreign entity . ARIES observed the test results , seeking whether anyone was strong enough to inherit the control of Iokath and appearing as a Human hologram at various technolith s . Zakuulan forces were far more numerous , but suffered heavy casualties amongst both the Knights of Zakuul and Eternal Fleet officers . Meanwhile , Alliance member Theron Shan managed to use his cranial cybernetic implant working and contacted other Alliance members , directing everyone to a structure called the Tributary . Along their way there , many Alliance members encountered Zakuulan forces , with Koth Vortena meeting an officer who wanted to surrender before being killed by droids , Kaliyo Djannis scoring twenty - six and a half kills , and Torian Cadera and Alliance Commander coming across a group of Knights who were all killed by the scour swarm droid s . After all Alliance members have gathered together , their position in the Tributary soon came under attack from purifier droid s . Theron shot the force field console , trapping the droids outside , and forcing the Alliance to find another way out . The Alliance Commander and Vette went ahead to explore , coming across and disabling a colossus droid , with the rest of the Alliance close behind . Theron soon realized that even though he was unable to locate the " Gravestone " , he could still use his implant to remotely pilot the shuttle that was left in its hangar . To provide themselves with a distraction from the droids outside , the team repaired the colossus droid , allowing the Commander to use it against its much weaker , but more numerous brethren . While the Commander held off the droids in the Tributary Grounds , Theron found his shuttle , remotely piloted it to the Tributary roof , waited for everyone to get onboard and took off . SCORPIO was likewise imprisoned in an unknown location , but managed to find a connection node in her cell and access Iokath ' s massive planetary network . Using ARIES ' preoccupation with other prisoners to escape her confinement , SCORPIO used his own trick to leave holographic disguise in her place , so that by the time ARIES determined her too dangerous and blasted her with laser fire , she was already far away . Eventually deciding that none of the new arrivals were worthy of inheriting Iokath , ARIES decided to bring the combat simulations to an end . He activated a massive energy shield that would destroy any vessel attempting to leave Iokath and started recharging his superweapon , intending to use it on lethal setting this time . However , his multiple holo - transmissions allowed SCORPIO to pinpoint his location at the ARIES base in Iokath ' s southern hemisphere and transmit it to the Alliance forces , asking them to stop ARIES before he could destroy them all . Meanwhile Empress Vaylin , who awoke alone in her cell , experienced a visit from ARIES , who appeared in the hologram of her late brother Thexan . Vaylin instantly became suspicious when she could not feel her brother through the Force and quickly realized the deception by feeding " Thexan " a lie about her past which he did not correct . Demanding to know who was impersonating her brother , Vaylin Force - pulled together a bunch of wall panels into a projectile and threw it at " Thexan " , smashing a wall and revealing a way out of her cell . Vaylin soon came across the remains of Eternal Fleet crews and rallied her forces to retake the Fleet from ARIES . Together they found the control console , from which one of the GEMINI captains released the docked Eternal Fleet warship s . However , as the ships prepared to leave , they began smashing into ARIES ' energy shield and Vaylin ordered to find and disable its source . A purifier drone landed a lucky shot on Vaylin , who responded by trashing it , rendering the droid harmless . She then brought the droid with her to one of the warships , where her loyalists reported her that half of the Eternal Fleet has been recaptured , while the remaining ships could be towed with the tractor beam s . The GEMINI captain connected to the purifier drone to access its information about ARIES , which revealed that ARIES was about fire his weapon that would destroy organics and the GEMINI droids alike . Reaching ARIES base in this shuttle , Theron dropped the Commander and Vette off to deal with ARIES , while the rest departed to reclaim the " Gravestone " , now knowing its location based on the shuttle ' s last coordinates . They managed to snatch the ship right out from Vaylin ' s nose , but were chased by the Eternal Fleet warships . The Commander and Vette stormed the base and attacked ARIES , even while the Eternal Fleet laid fire to his base and the superweapon capacitors threatened to overload . Eventually , after ARIES faked defeat and attempted to backstab the Alliance Commander , he himself was shot in the back and destroyed permanently by SCORPIO . She then lowered the energy shield and urged the Commander to escape before the capacitors on ARIES ' superweapon overloaded and covered the entire world with a pulse of deadly radiation . SCORPIO announced her intention to upload her consciousness into the planetary network , becoming one with Iokath , and since this would prevent her from threatening the Alliance or the galaxy again , the Commander allowed her to proceed and SCORPIO thanked them before forever leaving her droid body forever . The Commander and Vette rushed outside , where they were picked by the " Gravestone " at the last minute . With the planetary shield down , the Eternal Fleet had the opportunity to escape , but Vaylin insisted on killing her enemies first and ordered the purifier drone to override the GEMINI captain ' s programming , restoring it to the default setting . The superweapon then exploded , which prompted Vaylin to flee into hyperspace with the majority of the Eternal Fleet , while leaving behind several warships to pursue the " Gravestone " , which itself just barely managed to escape to hyperspace with everyone aboard . Aftermath . The radiation from the exploding superweapon covered the entirety of Iokath , damaging the GEMINI units on the remaining Eternal Fleet warships , and causing them to lose contact with their sisters in the GEMINI frequency . Furious at their failure , Vaylin became determined to have the GEMINI captains obey her without question , as they did before SCORPIO granted them free will . Vaylin brought the purifier drone back to the Zakuul and plugged it into the Eternal Throne , from where the droid restored every GEMINI unit to their default setting . Despite the loss of her advisor and some of the Fleet personnel , Vaylin viewed regaining full control of the Eternal Fleet as a victory , immediately sending it to attack Alliance outposts and patrols . Just before the Alliance escaped , SCORPIO transmitted them the schematics for upgrading the " Gravestone " with Iokath technology . She later send the Commander one final message , indicating that she was making home within Iokath ' s massive planetary network . The Alliance leadership safely returned to Odessen , where the " Gravestone " was dry - docked to install the new upgrades . In the end , Alliance forces have regained control of their most powerful weapon without suffering a single casualty , while SCORPIO was out of the picture and unable to threaten the Alliance again . Additionally , the Alliance Commander became aware of a secret phrase that would trigger Vaylin ' s mental conditioning right before everyone was captured by ARIES , giving the Alliance an edge against the Eternal Empress . Alliance scouts were deployed to Iokath system , but the radiation levels were still dangerously high , disruption navigation and comm signals and making any exploration impossible . By the time the radiation levels subsided , Empress Vaylin was already dead and the Alliance had conquered Zakuul , transforming itself into the Eternal Alliance . A secret group known as the Order of Zildrog learned the location of another superweapon known as the Six Gods on Iokath and leaked it to the Eternal Alliance , Galactic Republic and the Sith Empire . All three parties arrived on Iokath and converged on the superweapon at the same time , leading to the Battle for Iokath . Behind the scenes . The number of Alliance personnel present may differ depending on player ' s previous Dark Side choices . During " " Chapter XIII : Profit and Plunder player may get an option to kill or exile either Aric Jorgan or Kaliyo Djannis , depending on choices made during previous Chapter XII : Visions in the Dark . Likewise , during " " Chapter III : Dark Reunions player may get an option to kill Koth Vortena , depening on choices made during " Fallen Empire " Chapter X : Anarchy in Paradise . At the end of Chapter V : Ascension player can either allow SCORPIO to merge with Iokath as a Light Side choice or kill her for past betrayals moments before she obtains freedom as a Dark Side choice . In the latter case , the Alliance will still obtain schematics for " Gravestone " upgrades from other information sources that were collected on Iokath .