Promised Land The " Promised Land " was a legendary underground city located in the lowest levels of Taris , beneath the Undercity and its sewers , as well as below the Lower City , Middle City and the Upper City . It was where the first Tarisians first discovered and settled on the planet which was several centuries before the Jedi Civil War back when the world was still forest and oceans . It was governed by the Taris Civil Authority . It was before the Tarisian Civil War turned the portion of the planet ' s surface that was not covered by an urban sprawl into a wasteland . Once someone entered the colony , they were unable to exit , thus protecting the Promised Land ' s secret . According to Gendar , it would have taken weeks or even months to reach the entrance and the traveler had to cross many rakghoul infested areas . History . Colonial Origins . Several centuries before Taris became a major galactic hub a fleet of human ships from unknown origins colonized the planet and started to build a city underground in which according to Rukil would become the site of the Promised Land . The realm was governed by the Taris Civil Authority . As population spread , Transport Station 5 was constructed atop and around the original colony site , and another city was built on top of it which would become the Undercity which housed the sewers , then the Lower City and then the Middle City above that and finally the Upper City was constructed and the Promised Land was abandoned and was eventually lost and forgotten . After over a single century of prosperity , new and shorter trade routes were found and Taris became obsolete . By this point , the Promised Land had been rediscovered . In the aftermath of the Tarisian Civil War the criminals were banished to the Undercity , the outcast built a village , but suffered from starvation , rakghoul attacks , and rakghoul infections ; all hope for them was lost save for the legendary Promised Land which by then its location had been forgotten . Outcast Legends . The legends about the Promised Land were told from generation to generation between the Outcasts . They were still relatively popular in the time of the Jedi Civil War , although almost nobody believed in tales about a land where life conditions were much better than in the Tarisian Undercity . Still , Rukil , the oldest of the Outcasts as of 3956 BBY , believed he could retrieve the forgotten location of the Promised Land by assembling the journals of his dead father and grandfather . He also sent his apprentice , Malya , to seek the Promised Land , but she did not return . Rukil ' s efforts were opposed by the shifty shopkeeper Igear , who was fearful that the discovery of the Promised Land would deprive him of the status and importance he derived from his salvage shop , the Outcasts ' main source of income . When Revan visited the Undercity in 3956 BBY during his forced stay on Taris , searching for the Galactic Republic escape pod that Jedi Bastila Shan used to escape the Republic capital ship " Endar Spire " , he found the three journals — those of Rukil ' s apprentice , father and grandfather — and brought them to Rukil . This information was enough for him to determine where the Promised Land was . The next night , the Outcasts left the Undercity , heading for the lost colony . Destruction of Taris . Unfortunately for the Outcasts , this was the time when Darth Malak ordered a massive orbital bombardment of Taris - which also led to Rukil ' s death . It was discovered by a during the Cold War that the Outcasts have in fact found the Promised Land ; it was , however , vastly different from the legends , or at least after the destruction of Taris . The buildings , equipment , generators and possibly the droid s had been destroyed and therefore the Outcasts had to start over . Whilst being a difficult task , they had survived the bombardment . However , many generations had passed since then - each having a " Promised One " , who would keep the memories of the terrible apocalypse and be in charge of the colonists . Realm of the Outcast . The anti - Rakghoul serum which Revan discovered was enough to protect the first few generations , but the Rakghouls had evolved to become resistant to to the antidote , it was obvious that babies couldn ' t be born immune . Some of the Rakghouls even evolved into the sentient Nekghoul s . The Outcast later left the Promised Land and recolonised the Undercity and renamed themselves the Tarisians . This however was in vain as the Tarisians continued to die out on the surface from starvation , disease and Rakghouls . It was also shown , in the last successfully preserved time recording , that the last generation alive had lost so much information about the world , they didn ' t even know how or what brought them there and the remaining members died from toxic waste which ultimately resulted in their extinction . The information about them was lost until Republic forces retrieved the information about their post - apocalyptic history both in the Promised Land and in the Undercity and gave it to a local Republic history keeper . Behind the scenes . In the non - canon dark side ending , if Revan chooses to give the journals to Igear and he destroys them , the Outcasts never find the Promised Land . The fate of the Promised Land is revealed in a side quest for Republic players during their visit to Taris in " " .