Ziost was a planet located in the galaxy's Outer Rim Territories in grid square R-4 on the Standard Galactic Grid. It was one of the noteworthy worlds of the ancient Sith.
As mentioned by the Jedi writer Kli the Elder in the Rammahgon, Ziost once had a fertile environment, until the Sith established their presence there and laid waste to the planet just as they did with Moraband, Exegol, and Asog. In the time of the Galactic Republic, Ziost was quarantined along with the likes of Malachor, Jaguada, and Rhelg, and its affiliation to the Sith was hidden from history.
Ziost was the original site of an ancient Sith ritual altar that was present in the Grand Republic Medical Facility on Coruscant in 19 BBY. Sometime between 0 BBY and 4 ABY, CR-8R considered Fortress Vader on the planet Mustafar the spookiest Imperial stronghold this side of Ziost.
Ziost in The Golden Age of the Sith comic miniseries
Ziost was first depicted in the new Star Wars canon on a galactic map in Star Wars: The Force Awakens Beginner Game, a 2016 Fantasy Flight Games' Star Wars Roleplaying boxed set. In the Star Wars Legends continuity, Ziost was introduced as the capital of the Sith Empire in the third issue of the comic miniseries Tales of the Jedi: The Golden Age of the Sith, which was written by Kevin J. Anderson, and published by Dark Horse Comics on December 11, 1996.
- Star Wars: The Force Awakens Beginner Game
- Star Wars: Complete Locations
- Star Wars: The Rise of Skywalker: The Visual Dictionary