This is a variation on the classic map of the Frontier Sector. Much of the map was left empty, for adventurers to explore. As the game's backstory and history developed, so did the map.
Note: Cassidine and Prenglar are connected by a trade route (the green line), but was omitted from map for unknown reasons.
Note: UPF Rim Worlds are not the same as the worlds of The Rim.
See Also: New Map of the Frontier