Son-tuul, situated in the Outer Rim Territories, was a planet defined by its jungle ecosystem. It served as the primary base for the Son-tuul Pride, a criminal enterprise that was counted among the Five Crime Syndicates. Darth Vader launched an attack against the Son-tuul Pride, seizing their stockpile of credits. Subsequently, a group of mercenaries convened at a local cantina with the intention to steal these credits from Vader's forces. Sometime later, Chelli Aphra assembled a new mercenary team, commissioned by the Son-tuul Pride, with the mission of retrieving the memories of their leader, 0-0-0. Soon after these memories were recovered, the Empire mounted an attack, resulting in the destruction of the Son-tuul Pride. 0-0-0 managed to survive, departing the planet in pursuit of Aphra.
Encompassed by sprawling jungles, dense forests, and towering mountains, Son-tuul was a planet. Its location within the Albarrio sector of the Outer Rim Territories meant it possessed a atmosphere suitable for breathing. The settlements were constructed among the trees, connected by rope bridges and spiral staircases, and were routinely patrolled by Imperial stormtroopers. Furthermore, Son-tuul served as the home world of the Son-tuul Pride, a criminal organization and the sixth member of the Five Crime Syndicates. Their primary base was situated deep within Son-tuul's jungles.