The Umbarans had been members of the Galactic Republic since the government's founding, but, despite their long history of taking part in the galaxy's politics, they always prioritized their homeworld over the galactic government. Umbaran soldiers during the Battle of Umbara.

The plant life on Umbara was particularly aggressive, and bioluminescence was a common trait, found in both Zabrak Spines and death's embrace. The planet was also known to have several moons including an outermost one. Umbara also had large doonium reserves, which led to the emergence of a substantial mining and refining sector in its economy. Umbara sported a variety of predatory animal and plant life. Umbaran glass was a type of glass, with Greez Dritus using it to cover a terrarium aboard the Stinger Mantis.

Among these breakthroughs was a gas that stimulated soldiers to fight longer and harder. This resulted in the development of advanced technologies that far exceeded the galactic standard by the native Umbarans, though it was difficult for non-Umbarans to use the technology.

Umbara was a planet in the Expansion Region that experienced no sunlight on its surface, earning the name 'Shadow World.' Situated within the occluding Ghost Nebula sector, Umbara was cut off from the rest of the galaxy.

Star wars battlefront 2 umbara