The Callisto is a rebel Apostolosian ship led by Sokrates and crewed by a mix of Apostolosian and Diasporan people. Its total crew is no more than 80 people.
It may have been named for the Apokine or another mentor of Sokrates, although Sokrates insists in an argument with Orth and Addax that no one ever told them its name.[1]
Locations on the ship mentioned in the Kingdom game include a temple room, observation deck, communication chamber, hangar bay, officer's lounge, and people's private quarters. The temple room contains statues of the six Eidolons.
During "Crisis! A Solemn Vow Above The Sea of Counterweight," Ariadne sent a personal message to an outside Apostolosian ship, which led Ibex to accuse the Callisto's crew of being traitors. In the end, Addax seized the ship. The Callisto was mostly destroyed during the war except for its observation deck; the Callisto II (Sokrates's ship after the formation of the Golden Demarchy) was built around it.[2]