The Pact Worlds are the beating heart of the Starfinder campaign setting, a solar system full of citizens both familiar and bizarre. From the cosmopolitan corridors of Absalom Station and the carnivorous jungles of Castrovel, to the necromantic wastleands of Eox and the floating cloud-cities of the gas giant Bretheda, this Starfinder rulebook features in-depth gazetteers of the system`s 14 major worlds, including new playable alien races, starships, living vessels, and archetypes, plus tons of new weapons, armors, spells, feats, magic items, and technological gadgets.