Sigma 13 is a Border World system that lies in between the Honshu system of Kusari and the Frankfurt system of Rheinland. Two corporations have bases in Sigma 13, the GMG (Gas Miner Naha) and ALG (Helgoland Station), and these stations have trade lanes connected to jump gates at both ends. Onto the criminal side, the Junkers have established a base within the Yanagi debris field, 25k west of Helgoland station. As a result, this system is also frequently inhabited by Corsairs, Outcasts, and occasionally Zoners.