It was the site of a Galactic Republic spaceport during the Clone Wars. Separatist commander Sev'rance Tann went to this city to meet Boorka the Hutt, when the latter planned to betray the Republic forces there.
Later, when the Jedi General Echuu Shen-Jon and his troops intervened in the partnership between Boorka and the Confederacy, they drove out the Separatists from Mos Osnoe. During his stay in the city, Shen-Jon also helped the local authorities and citizens to fight during a raid by the Tusken Raiders.
- Star Wars: Galactic Battlegrounds: Clone Campaigns (First appearance)