Iokath species A species , the name of which has been lost to time , was responsible for the construction of the massive habitable sphere named Iokath . History . Originating in the Unknown Regions millennia before the Manderon Period , the species ' s society was composed of scientists and engineers , who spend hundreds of years and countless design cycles designing and developing weapons of mass destruction . They then tested their designs on unsuspected worlds throughout Unknown Regions , gathering feedback data to further perfect their weaponry . Over their history , the species live - tested their weapons on over seventy unique worlds , often destroying the civilizations , eradicating sentient species or even destroying entire biospheres . Despite this , the species was not violent or expansionist in nature - when possible , they provided survivors with reparations to rebuild so that millennia later they could be tested again . The analysts and designers of the species answered to the Master Designers Council . Eventually , the Council announced commencement of Project Iokath , a massive undertaking with the goal to fabricate an expandable and adaptable home for the entire species that was also secure against any outside force . To that end , they picked an unremarkable star in the Unknown Regions and demolished every orbital body in its system down to the last asteroid , salvaging them for core elements . Those were used to create a massive self - sustaining ecosphere that completely engulfed the star , using 100 % of its energy output . The massive habitat was named Iokath and since once completed it allowed no light from its star outside , the entire system became undetectable to the rest of the galaxy . Even then , the exterior defenses of the sphere made the inside biome virtually unassailable , while the inside modules could be altered and expanded as needed , giving Iokath creators complete control over their new home . As centuries went on , Iokath technology was developed even further . Their greatest creations included a massive Eternal Fleet acting in unison through the link of its GEMINI captains and the Six Gods - massive titan battle droids designated Izax , Scyva , Tyth , Aivela , Esne , and Nahut who wreaked havoc on four different planets , resulting in loss of over ten trillion lives in total . Such weapons were controlled by the interface in form of the thrones , sitting in which a user could issue commands directly . One such throne was at some point removed from Iokath and dubbed the Eternal Throne . The Iokathi also developed a vessel with the power to take down the Eternal Fleet called the " Gravestone " , advanced artificial intelligence in form of a long - extinct bipedal species called SCORPIO and a massive superweapon that could knock thousands in organic beings unconscious or dead over a radius hundreds of kilometers wide . Late in the species history , new weapon designs were no longer deployed on test worlds , their effectiveness instead predicted by simulations . The species faced its end when , as typical for organic beings , a dispute on Iokath led to a conflict that turned into all - out Iokath civil war , with both sides having access to multiple weapons capable of planetary - scale destruction . Suddenly , the most advanced weapons in the galaxy were turned against their creators . In an attempt to save themselves , Iokath engineers drove many of their creations , including the Eternal Fleet , the GEMINI droids and SCORPIO into the Wild Space with their memory core locked , preventing them from finding their way back to Iokath . However , it proved only a temporary solution , as one side eventually unleashed the Six Gods on Iokath , leading to eradication of all organic life on the artificial world . In the aftermath of the conflict , only one self aware droid remained on Iokath - ARIES , who used other droids as slaves to remade the world in his image . Behind the scenes . The Iokath species was first mentioned in " " . Later , Update 5 . 2 showed a centuries - old mummified body of one species ' member .