Oasis is the sole major town of Altara. It is somewhat lawless, its residents forced to watch their backs lest they find a knife in them. Its layout includes shanties, narrow streets and a tavern. In the 2500s, terrazine was discovered on Oasis, and a team of renegade spectres were sent to harvest it. Ghost agent Kath Toom was sent to investigate the area for potential United Earth Directorate remnants, but was captured by the spectres. Wrangler Malcolm Kelerchian was sent to investigate her disappearance, but the Terran Dominion lost contact with him in Oasis.