Alternate Universes

An Alternate Universe is a deviant or alternative plane of reality within the flow of space and time that exists outside of the mainstream flow of events. They are sometimes accessible by rifts opened in space and time through innate power or a powerful ritual.

Known Alternate Universes

 * The End
 * The French Mistake
 * My Heart Will Go On
 * Apocalypse World
 * The Bad Place
 * Scooby-Doo Universe
 * Yokoth and Glythur's World

Appearances

 * Season 5
 * The End
 * Season 6
 * The French Mistake
 * My Heart Will Go On
 * Season 12
 * All Along the Watchtower
 * Season 13
 * Lost & Found
 * The Rising Son
 * War of the Worlds
 * The Bad Place
 * Wayward Sisters
 * Devil's Bargain
 * Good Intentions
 * Scoobynatural
 * The Thing
 * Bring 'em Back Alive

Trivia

 * Mary Winchester is currently (as of The Bad Place) trapped in Apocalypse World with Lucifer. However, Lucifer managed to escape in War of the Worlds.
 * She and Jack have been trapped in Apocalypse World together since The Bad Place.
 * Virgil is the first and longest character to be trapped in an alternate universe.
 * Dean has visited every single one except Yokoth and Glythur's World.
 * The French Mistake is the only known universe without magic. A Goblet of Blood still works there though and can reach someone in the main reality.
 * While using Kaia's powers in an attempt to locate Mary Winchester, Jack sees windows into several different realities, one of which appears to be a paradise.
 * The Apocalypse World is the most recurring alternate universe.
 * Season 13 featured the most alternate universes and the most appearances of alternate universes. It also has several rifts open between the universes throughout the season.
 * In Wayward Sisters, a rift was open between the Bad Place and the Main Universe for a few days. As a result, monsters from that alternate universe crossed over into the Main Universe. Though several were killed, Sam suggested that more monsters may have made it through before the rift closed that aren't accounted for.