Perilious, a world found in the Outer Rim Territories of the galaxy, was classified as a planet. It was known as a haven for criminals, specifically hosting a major slaving operation that focused on the trafficking of Twi'leks. The planet's atmosphere was almost always filled with intense storms.
In the era of the Clone Wars, the Jedi Knight Vydel Dir'Nul followed the trail of a serial killer known as Kardem all the way to the planet Perilious.