During the Clone Wars, the Separatist Droid Army, commanded by Wat Tambor, took control of Ryloth and took the Twi'leks prisoner. The Separatists installed a plasma bridge as the only way to get into the city, which they could turn on or shut down. The capital was later freed by the combined forces of freedom fighters and the Galactic Republic, guided by Jedi Master Mace Windu and rebel leader Cham Syndulla, with aerial support from Anakin Skywalker and Ahsoka Tano's fighter squadron.
During the Imperial occupation, a female Twi'lek named Isval traveled to the Octagon, a district in the heart of the city of Lessu. There, she encountered a Twi'lek escort named Ryiin and a drunken Imperial officer. After assaulting the Imperial officer, she spirited Ryiin away into a new home where she would be safe from slavery.
- Star Wars: The Clone Wars – "Storm Over Ryloth" (First appearance) (Appears in flashback(s))
- Star Wars: The Clone Wars – "Innocents of Ryloth" (Mentioned only)
- Star Wars: The Clone Wars – "Liberty on Ryloth"
- Catalyst: A Rogue One Novel
- Lords of the Sith
- "Mercy Mission"—The Rise of the Empire
- Star Wars Rebels – "Homecoming" (Mentioned only)
- Star Wars: Rogue One: The Ultimate Visual Guide
- Star Wars: The Visual Encyclopedia
- Star Wars: On the Front Lines
- Star Wars Encyclopedia of Starfighters and Other Vehicles