Under a Glass Moon
The Astral Sea was full of many wonders, which the gods spent centuries studying and praising. When Order felt them ready, he commanded them to take flight outside the boundaries and to fill the vacuum with creations that mirror those of the Sea. He gave them the power of creation. So the gods set off in every direction, creating as if pleased them a host of worlds true and good that would serve Order.
The Material Plane and its Echoes
The Material Plane is a richly magical place, and its magical nature is reflected in the two planes that share its central place in the multiverse. The Feywild and the Shadowfell are parallel dimensions occupying the same cosmological space, so they are often called echo planes or mirror planes to the Material Plane. The worlds and landscapes of these planes mirror the natural world of the Material Plane but reflect those features into different forms—more marvelous and magical in the Feywild, distorted and colorless in the Shadowfell. Where a volcano stands in the Material Plane, a mountain topped with skyscraper-sized crystals that glow with internal fire towers in the Feywild, and a jagged rock outcropping resembling a skill marks the spot on the Shadowfell.
The Transitive Planes
The Ethereal Plane and the Astral Plane are called the Transitive Planes. They are mostly featureless realms that serve primarily as ways to travel from one plane to another. Spells such as etherealness and astral projection allow adventurers to enter these planes and traverse them to reach the planes beyond.
The Inner Planes
The Inner Planes surround and enfold the Material Plane and its echoes, providing the raw elemental substance from which all worlds were made. The four Elemental Planes— Air, Earth, Fire, and Water—form a ring around the Material PLane, suspended within a churning realm known as the Elemental Chaos.
The Outer Planes
The planes with an element of good in their nature are called the Upper Planes, while those with an element of evil are the Lower Planes. A plane’s alignment is its essence, and a character whose alignment doesn’t match the plane’s alignment experiences a sense of dissonance there.
The Seven Heavens of Mount Celestia
The Twin Paradises of Bytopia
The Blessed Fields of Elysium
The Wilderness of The Beastlands
The Olympian Glades of Arborea
The Heroic Domains of Ysgard
The Ever-Changing Chaos of Limbo
The Windswept Depths of Pandemonium
The Infinite Layers of The Abyss
The Tarterian Depths of Carceri
The Gray Waste of Hades
The Bleak Eternity of Gehenna
The Nine Hells of Baator
The Infinite Battlefield of Acheron
The Clockwork Nirvana of Mechanus
The Peaceable Kingdoms of Arcadia
The Positive and Negative Planes
Like a dome above the other planes, the Positive Plane is the source of all radiant energy and the raw life force that suffuses all living beings, from the puny to the sublime. Its dark reflections is the Negative Plane, the source of all necrotic energy that destroys the living and animates the undead.