Xirl, situated close to the Kalidorn system in the region known as Wild Space, was a planet characterized by its jungle environment. A creature called the Stinker originated from Xirl. A hunting lodge was constructed on Xirl by Gozetta, who was a female human. The world served as a location for clandestine communications, urging individuals to oppose the Galactic Empire, which were transmitted covertly.
The initial depiction of Xirl occurs within the Adventures in Wild Space series, authored by Cavan Scott.