Gotarzes and his sister were raised by their mother after their father left at some point. Before his father left, the armor in his possession was left to Gotarzes. By the Peloponnesian War, Gotarzes and Xenia became pirates, with Gotarzes supporting his older sister and captaining a ship himself. Among the population of Keos, however, Gotarzes was regarded as a lost cause; his travels often filled with mishaps and accidents.
At some point in around 431 BCE, after his ship was marooned on Lestris, Gotarzes' crew mutinied against him and attempted to eliminate him. Before they could, however, the Spartan misthios Kassandra found them and rescued Gotarzes, returning him to Koressia to the delight of Xenia. As a reward for rescuing his brother, Xenia forced Gortazes to gave his armor he had inherited from their father to Kassandra.
- The name Gotarzes is actually the Hellenization of the Parthian name Gōtarz.
- Despite being Kassandra's ally through Xenia, Gotarzes can be knocked out and recruited as a lieutenant on the Adrestia.