IG - 88 ' s Droid Army IG - 88 ' s Droid Army was a large droid army under the command of the IG assassin droids IG - 88A , B , C , and D " and " 3D - 4X before and during the time of the Galactic Civil War , up to the end of 4 ABY , during the Battle of Endor . Its purpose was to start a Droid Revolution to exterminate all sentient beings which they perceived as the " inferior biologicals " that plagued the galaxy . However , it was never put into real action , and diminished after its final leader , IG - 88A , was destroyed during that battle . The existence of the Droid Army was unknown to the galactic public . History . Origins . The revolution started when IG - 88A was created and activated on Halowan by Holowan Mechanicals during Project Phlutdroid . IG - 88 realized that the Human scientists were a threat to his primary programming as an assassin droid , when they tried to shut him down , after realizing that his sentience programming was too powerful to control . He decided that all biologicals were inferior to droids , and then turned against his creators and killed them within seconds . He then continued to activate the other IG - 88 ' s , copying his consciousness into each , and designated them B , C , and D in order of their activation . Then , together with fellow droid IG - 72 , who agreed to help them get off Halowan , they escaped the facility , carving a swath of destruction along the way . Insurrection on Mechis III . The IG - 88s took off on a ship towards the foundry world of Mechis III . Their first step was to take over the foundry world Mechis III , which was one of the Galaxy ' s largest droid manufacturers . They planned to use the planets vast industrial complexes to construct a droid army for their revolution , but first they had to deal with the biologicals on the planet . As they flew toward the planet in their ship , they simply sliced into the planet ' s security system , rerouted the planet ' s computer systems and transmitted a code to transfer their sentience into all droid minds . Before long all of Mechis III ' s droid operators , had sentience of their own , and were under the control of the assassin droids . It was here that the IG - 88s took control of a servant droid , told it their plan , and instructed it what to do . The droid in question was 3D - 4X , a common butler droid for the head supervisor , Administrator Hekis Thun . While delivering Hekis ' s tea and daily report , 3D - 4X pulled out a blaster pistol and shot Hekis dead , thus starting the first uprising of the Droid Revolution . The droid operatives on the planet followed their orders and rose against their biological masters , and killed all 73 on - planet Human staff within five minutes . The entire planet was now in the hands of the IG - 88s , before they had ever step foot on its surface . Their plan was to mass - produce millions of droids , with embedded sentience and then ship them out all over the galaxy . Thus , when the signal was given , all of these droids would turn on their masters . To make it seem as if nothing had occurred , the droids constructed doctored image systems , so that when Mechis III was contacted , they would think that they were talking to an organic being . All was going well , but the IG - 88 ' s feared that soon their luck would run out , and that they might be discovered . So they all agreed that they would take jobs as bounty hunters , with IG - 88B as the " face " of the group , in order to lead the Imperial authorities away from their true objective . Consolidation of power . To begin IG - 88 ' s plans for the extermination of the ' inferior ' organic beings of the galaxy , he began plans in producing a massive army on the factory world of Mechis III . Eventually , when the time would arrive , he would unleash this army to begin the purge of all organic beings . Soon , around 1 ABY , the Galactic Empire contacted Mechis III , to construct an order of Arakyd probe droids . The IG - 88 ' s took this opportunity , and implanted spy programming into the probes , so that at the same time that the probes were working for the Empire , they were spying for them . The closest the revolution ever came to getting discovered was when the Sith Lord , Darth Vader came to oversee the production of his Arakyd Vipers . However , the droids masked their presence well , and Vader merely sensed a slight disturbance . Later in 1 ABY , IG - 88 suffered a slight setback on Lok . It began production of droids for it ' s army in Nym ' s Factory Compound , but a group of spacers attacked and defeated all the droids there , with the commanding IG - 88 droid barely escaping intact . Death Star II . When IG - 88A received information that the Empire was building a new and more powerful Death Star , he decided to download his consciousness into the Death Star ' s central computer core and become the ultimate force in the universe . To do this the droids had to create a false computer core to store IG - 88 in . By the time the foundries on Mechis III churned one out , IG - 88B and C had been destroyed by the bounty hunter Boba Fett , and IG - 88D was missing . IG - 88A was on his own . He then boarded an identical shuttle to the one they would intercept which carried 100 droids disguised as stormtroopers and the computer core . The droids then intercepted the Imperial shuttle carrying the Death Star ' s computer core . They destroyed the escort and eventually the vessel itself . Onboard , IG - 88A was surprised to find Supervisor Gurdun who had overseen Project Phlutdroid . When Gurdun told him that he should be gracious toward him , for commissioning his construction , he thanked him before planting several explosives on the vessel . Meanwhile , his mechanical stormtroopers carried the core out and downloaded its contents onto their modified core . When the Imperials installed the core , IG - 88A literally became the Death Star , with complete access and control to all systems . None of the Imperial personnel knew , although Palpatine suspected his presence when a series of doors in his throne room opened and closed wildly . The mechanical stormtroopers were scattered throughout the space station doing various things . His presence was almost revealed , when one of these was crippled by a fallen crane . When the sparks coming from his legs were seen , it self - destructed , killing all the witnesses present . Endgame . When the Alliance to Restore the Republic attacked the Death Star , IG - 88 fired the superlaser at the Rebel fleet , letting the Imperials believe they were in control , while he prepared to transmit his master control signal that would cause all droids to turn on their masters . However , he could not care less about this war between biologicals , he was only concerned with his plans , which were about to come into being . IG - 88 was now preparing to send out the signal to droids everywhere , when the Rebel General Lando Calrissian in the " Millennium Falcon " , shot at the Death Star ' s main reactor , causing a chain reaction which destroyed the entire space station , ultimately before IG - 88 could do anything to stop them . His plans for galactic conquest and droid prosperity were now utterly destroyed . The droid army was effectively dissolved after the destruction of the Death Star II at the Battle of Endor , and IG - 88A with it . It is unknown what would have been done to stop the rogue droid entity if the Empire had been victorious at Endor . One would think the Empire could simply replace the Death Star ' s computer core and dispose of the infected one , though with the nearly impenetrable defenses outside ( and mostly likely inside ) , this may have proven to be extremely difficult .