It was discovered by Rogue Squadron and recovered from Imperial control. The base, located along the edge of the Northern Dune Sea, was originally commissioned by Sate Pestage as a storehouse for the material which would be needed in order to fight a war against the New Republic.
After it was emptied by the New Republic, a group of former Imperials took control of the base and used it as a shelter for those Imperial supporters who didn't want to make the trip to the remote systems of the Imperial Remnant. Over the years, the New Republic ceded the land on which the base was located to the Imperials, and Eidolon Base became a wealthy city unto itself.
- X-wing Rogue Squadron: Battleground: Tatooine (First appearance)
- X-wing Rogue Squadron: Mandatory Retirement (Mentioned only)
- X-wing Rogue Squadron: Masquerade (Mentioned only)