Changes

The ''Planescape Campaign Setting'' boxed set details the [[plane]]s of the ''Dungeons & Dragons'' game, which had been previously featured in books such as ''[[Deities and Demigods]]'' and the ''[[Publication:Manual of the Planes (1e)|Manual of the Planes]]''. The set consists of a Player and DM Guide, a Monstrous Supplement, a guide to the town of [[Sigil]] and the [[Outlands]], four color maps, and a DM screen. The [[Inner Planes]] of Air, Earth, Fire, and Water, the Paraelemental and Quasimental Planes, and the Positive and Negative Material Planes are all discussed first, including descriptions, physical and magical conditions and native hazards for each plane. The [[Outer Planes]] are also detailed, with layers, and multiple realms possible on each layer; important layers and realms are included in the descriptions of individual Outer Planes, including which gods (here called Powers) make their home there. Also described with the Outer Planes are the four unique planar Paths which touch many different layers of the various Outer Planes, and can take travelers from one place to another: the Rivers Oceanus and Styx, the Tree Yggdrasil, and Mount Olympus. The largest of the set's guides is devoted to the planes and layers of the Outlands, which connect to all the Outer Planes, with towns or forts located at these sites. Sigil, the City of Doors, located in the Outlands, is a place composed of [[Canon:Faction (Planescape)|faction]]s, and contains portals to any plane or layer. The ruler of Sigil is the [[Lady of Pain]], a mysterious being who appears during times of internal or external turmoil.<ref name="WW43"/>