Rordak Rordak was a planet in the Rordak system . It was an Imperial penal colony with an orbital nightcloak . A battle was fought there between 3681 BBY and 3653 BBY between the Sith Empire and the Galactic Republic . The battle ended in a Republic victory when Bouris Ulgo personally boarded Moff Ceptor ' s battlecruiser . Prisoners assigned to Rordak were either forced to work in the dangerous mines or are sold into slavery , laboring at the behalf of a Viska noble . Because every prisoner on the world had been sentenced to life imprisonment , they were considered property of the Empire , to be used as the prisons ' wardens saw fit . Description . Rordak was the only planet in its system ; originally , there were three inner worlds , but they were all consumed when the star expanded to form a red giant . The results on Rordak were dramatic , as seas were scorched , great tectonic shifts occurred , and most life - forms were killed . Over the next few million years , entirely new forms of life evolved , including the Viska . The world was rich in metals but also had a hostile atmosphere and high levels of geologic activity . Rordak was a small mountainous world , broken and scarred from constant volcanic upheaval . Huge mountains and deep gorges scarred the planet ' s surface . Water was rare on this world , and rains , when they did fall , were highly acidic as a result of the constant volcanic ash which was expelled into the atmosphere . The world ' s carbon dioxide heavy atmosphere was extremely fatiguing to most newcomers . The temperature of the world fluctuated wildly , with an average of 45 degrees celsius during daylight hours , and an average of 5 degrees celsius at night . Seasonal variations could alter the temperatures up to 20 degrees . The planet of Rordak was populated by very few indigenous species . Plants took the form of stunted trees and brown grasses . A few forms of grazing animals evolved on the planet , but there were few wild animals remaining on Rordak , and they were found only in the most desolate mountains of the planet . Locations . Rordak contained four starports : Dreggusom , Azkulkt , Whosk , and Deggaruls . The largest prison camp was known as Alpha TR - 8 . Viska Flying Cities . The Viska lived in clusters of repulsorlift powered buildings . This tradition came from the need to stay away from the ground , or risk being caught in a volcanic eruption or earthquake . With the advent of modern technology , the Viska began building flying platforms , and adapted to a completely aerial society . All of their structures were huge , open - aired buildings ( to accommodate their large wingspans ) , attached to a huge repulsor column , which was over 500 meters long and nearly 100 in diameter . The cities were built on several levels , reaching many thousands of meters into the air . The upper levels of the cities were reserved for the royal Viska clans , while the lowliest workers and clans were forced to live on the bottom levels . The middle section was where most manufacturing facilities , trade locations and landing pads were located . Imperial Prison Camps . The largest prison camp was known as Alpha TR - 8 . All of the prison compounds were built on the ground , exposing the prisoners to the risks of earthquakes . Above each camp was an orbital nightcloak , which blocked all sunlight and immersed the camps in one continuous night .