Habo, a planet located within the Outer Rim Territories, was once populated. The inhabitants of Habo were known for their timidity, and the planet rarely received guests. Following the arrival of an elderly dark-side Force user on the world, Jedi Master Tajin Crosser and his Padawan, Dan G'vash, launched an investigation into what was causing a disturbance in the Force on Habo. Crosser went into Habo village to speak with the people there, and G'vash made his way to the mountains, where he came face to face with the elder. The master and his apprentice then overcame him in a lightsaber duel.
The majority of the planet's residents were farmers, and some had transformed the mountains encircling their villages into ziggurat-shaped farm terraces. The farmers who lived on the planet typically resided in pit-houses made of wood and earth, which were covered by a tent-like cloth canopy. Oon-Doon was a popular local food.