![[Cosmology 5e.webp]] The multiverse is a vast and intricate tapestry of interconnected planes, each representing different aspects of existence. It is a structured network where alignment, elemental energy, and spiritual significance govern its realms. At its centre lies the **[[Material Plane]]**, balanced between the forces of nature and magic. Surrounding it are the **Inner Planes**, the sources of elemental power, and the **Outer Planes**, which embody moral and philosophical ideals. Interconnecting these are transitional realms like the **[[Astral Plane]]**, **[[Ethereal Plane]]**, and **[[Sigil, City of Doors|Sigil]]**, acting as bridges or hubs. Below is a detailed summary of the major planes and their characteristics. --- ### **Inner Planes** The Inner Planes are the foundation of physical reality, composed of elemental and energetic forces that sustain the multiverse: - **[[Material Plane]]**: The balanced heart of creation, home to mortals and countless worlds. - **[[The Feywild|Feywild]]**: A vibrant, magical reflection amplifying life and emotions. - **[[The Shadowfell|Shadowfell]]**: A dark, decaying mirror reflecting death and despair. - **[[Cosmology & The Planes/Inner Planes/The Heart/Elemental Chaos]]**: The source of raw creation, where fire, water, air, and earth collide. - **[[Astral Plane]]**: The timeless silver void connecting all planes. - **[[Ethereal Plane]]**: A ghostly veil overlapping the Material Plane, linking to the Inner Planes. - **[[Plane of Air]]**: an infinite expanse of open skies where wind and cloud are the only constants. - **[[Plane of Earth]]:** A vast expanse of unyielding stone, labyrinthine tunnels, and boundless minerals. - **[[Plane of Fire]]:** A realm of unyielding heat and unquenchable flame - **[[Plane of Water]]:** A realm of endless seas where the surface blends seamlessly into the depths below --- ### **Outer Planes** The Outer Planes are realms of moral and philosophical alignment, serving as homes to deities, celestials, fiends, and the afterlife for mortal souls. Each plane reflects a particular alignment or ethos, offering unique landscapes, inhabitants, and experiences: - **[[Mount Celestia]] (Lawful Good)**: The Seven Heavens, a shining realm of perfection and ascension. Its seven layers ascend toward ultimate enlightenment, ruled by archons and inhabited by celestial beings. - **[[Elysium]] (Neutral Good)**: The Blessed Fields of tranquillity and joy. A plane of eternal peace and freedom where mortals and celestials coexist in harmony. - **[[The Beastlands]] (Chaotic Good)**: A realm of eternal twilight and untamed nature. Animals and spirits thrive in a perfect balance of predator and prey, reflecting the harmony of the wild. - **[[Arborea]] (Chaotic Good/Neutral Good)**: The Plane of Boundless Passion, where vibrant emotions and beauty dominate. It is home to elven deities and fey-like beings. - **[[Bytopia]] (Neutral Good/Lawful Good)**: The Twin Paradises of cooperative effort and mutual prosperity. Its two facing layers reflect the ideals of shared success and harmony. - **[[Arcadia]] (Lawful Good/Lawful Neutral)**: The Plane of Perfect Harmony, where law and good coexist in structured beauty and balance. - **[[Mechanus]] (Lawful Neutral)**: The Clockwork Nirvana, a plane of infinite gears and perfect order, ruled by Primus and inhabited by [[Bestiary/Construct/Modron]]s. - **[[The Outlands]] (True Neutral)**: A central hub connecting all Outer Planes, home to Sigil and the enigmatic Spire. - **[[Limbo]] (Chaotic Neutral)**: A swirling maelstrom of pure chaos, where willpower can impose stability. It is the home of the slaadi. - **[[The Abyss]] (Chaotic Evil)**: A plane of infinite, horrific layers where demons dwell. Each layer is unique and ruled by powerful demon lords like Demogorgon and Orcus - **[[Baator (The Nine Hells)|Baator, The Nine Hells]] (Lawful Evil)**: A descending hierarchy of infernal layers, ruled by devils and overseen by Asmodeus. The Nine Hells represent tyranny and corruption. - **[[Gehenna]] (Neutral Evil/Lawful Evil)**: A volcanic plane of ambition and greed, where fiends plot and mortals toil for power. - **[[Hades]] (Neutral Evil)**: The Grey Waste of despair and entropy, a realm of apathy and decay where souls fade into nothingness. - **[[Carceri]] (Neutral Evil/Chaotic Evil)**: The Prison Plane, where betrayal and punishment reign. Its layers are vast orbs of desolation and imprisonment. - **[[Pandemonium]] (Chaotic Evil/Chaotic Neutral)**: A realm of howling winds and endless caverns, embodying madness and isolation. - **[[Ysgard (Gladsheim)|Ysgard]] (Chaotic Good/Chaotic Neutral)**: The Heroic Domains of Glory and Freedom, where warriors battle endlessly and feast in eternal celebration. - **[[Plane of Dark (Negative Energy)|Plane of Dark]]**: A dimension where life is extinguished, and all things collapse into nothingness - **[[Plane of Light (Positive Energy)|Plane of Light]]**: A realm that is the source of all life, the essence of creation itself. --- ### **Sigil: The City of Doors** **[[Sigil, City of Doors]]**, is a planar metropolis located atop the **Spire** in the Outlands. It is the ultimate nexus of the multiverse, with portals to every plane of existence. - **Nature**: A ring-shaped city with countless portals. - **Ruler**: The enigmatic **Lady of Pain**, who enforces neutrality and prevents divine interference. - **Inhabitants**: Dabus, planar travellers, and members of various philosophical factions. - **Key Features**: Portal-filled architecture, faction intrigue, and neutral ground for planar politics. --- ### **The Far Realm** **[[The Far Realm]]** lies beyond the multiverse’s structure, a plane of incomprehensible chaos and madness. - **Nature**: Alien geometries, shifting landscapes, and anti-logical phenomena. - **Inhabitants**: **Elder Evils**, aberrations ([[aboleth]]s, [[Mind Flayer]]s), and corrupted mortals. - **Key Features**: **Sea of Impossible Colours**, **Cathedral of Madness**, and **Monolith of Eyes**. - **Magic**: Wildly unpredictable; psychic magic thrives while other forms may backfire. --- ![[cosmology 4e.webp]]