Ruhnuk, a planet situated in Wild Space and enveloped by an ionic storm, possessed a dry and arid climate. This arid environment made it susceptible to frequent duststorms. Following their attack on the Spirit of Vengeance II, Heta Kol and the Hidden Chain created a headquarters there. Around 3625 BBY, the Showdown on Ruhnuk saw the planet become a battleground between the Hidden Chain and the group led by Mandalore the Avenger.