The Tun Wala system existed within the Ktilac Regions, situated in the Slice area of the Inner Rim. As one of the three star systems comprising the Ktilac Regions, it was home to the Ktilac, Murachaun, and Tocoyan species, and it permitted external visitors, subject to specific regulations. Notably, the system held the same designation as the settlement of Tun Wala found on the planet Arda II within the Outer Rim Territories.
The 2009 sourcebook, The Essential Atlas, authored by Daniel Wallace along with Jason Fry, provided the initial reference to the Tun Wala system, locating it at coordinates N-9.