Cilpar, found within the Colonies region, was an agriworld almost entirely dominated by mountains, dense jungles, and expansive forests. A defining feature was the presence of extremely durable, ancient temples distributed across its landscape. The native wildlife included the dangerous ronk.
Sometime following the Galactic Empire's arrival on the homeworld of the Stenax species, known as Stenos, some members of the Stenax embarked on an off-world expedition as part of a larger scheme. These individuals stationed agents on various planets, including Cilpar, with the purpose of studying galactic species and determining which were suitable targets for conquest.
Rogue Squadron freed Cilpar from the control of the Galactic Empire. Following the Battle of Endor, the Empire maintained its hold on the planet when Rogue Squadron established a base in the mountainous region to the west of the capital city, Kiidan. An initially straightforward assignment escalated into a lethal encounter when they were ambushed by TIE Fighters. After a protracted conflict, Moff Boren Tascl and Governor Norquest were overthrown.
Subsequently, it evolved into a place where mercenaries could be recruited. Lando Calrissian attempted to enlist the services of the Soskin Guard while there.