Needs a Better Description, Needs More Examples, Seen It a Million Times, How Did We Miss This One? A dark take on the cult, an Apocalypse Cult tends to crop up in fiction wherever Cosmic Horror Story elements are present, with the members actively seeking to bring about the end of the world. There are several flavors of Apocalypse Cult, but most seek to awaken or make possible the return of some god of destruction to destroy the world and "make it anew". They will often be seen conducting arcane rituals of untold horrors and believe they will be rewarded with the equivalent of paradise for their service. As they are often a form of Religion of Evil, they tend to be practitioners of The Dark Arts. Human sacrifices, necromancers, zombies and other forms of undead are optional but often seen among their ranks. No Real Life Examples, Please!.
- In the Hellboy and B.P.R.D. 'verse, there are a large number of cults and secret societies--Project Ragna Rok, the Oannes Society, and the Heliopic Brotherhood of Ra, to name a few--hoping the trigger the apocalypse. Most of them are operating under the logic that the world is going to end anyway, but if they're the ones who pull the trigger, they'll at least have some measure of control over the destruction.
- In Tom Robbins's Skinny Legs And All, Reverend Buddy Winkler is working with terrorists who plan to bomb The Dome of the Rock in Jerusalem, so that the Third Temple can be built.
- Friendship is Witchcraft has an ongoing subplot involving Fluttershy leading a cult that worships The Smooze, and intends to summon him to destroy Equestria.
- Cast a Deadly Spell. The Big Bad plans to use the Necronomicon and a virgin sacrifice to summon Cthulhu and the rest of the Cthulhu Mythos deities, which would devastate the world.
Lovecraft: What kind of world?Hackshaw: A world of the unburied dead, and a sky dark with ashes. A blasted, maimed planet.
- Ghost Busters. In the Back Story, Ivo Shandor's Gozer worshippers conducted rituals intended to bring about the end of the world.
- In Cold Copper Tears, the cult of the Devastator aims to release a world-destroying dark god from its prison. Lampshaded and deconstructed by the Dead Man, who points out that, subconsciously, the cultists don't really want to end the world, they're just morbid and petty enough to get a charge out of thinking they can.
- Humanx Commonwealth series: A cult called the Order of Null appears in Flinx's Folly and later novels. They have learned of the approach of the galaxy-devouring Great Evil, and see it as their role to remove any obstacles to its coming. This includes Flinx himself, who is the Chosen One fated to destroy it. It is later revealed that they are abetted by none other than Flinx's archnemesis, Mahnahmi, a powerful telepath and an embittered nihilist.
- In Robert Anton Wilson and Robert Shea's Illuminatus! trilogy, the Illuminati Prime (the five most powerful people in the world) are actively seeking to Immanetize the Eschaton - ie, bring about the apocalypse - to make themselves immortal and provide a massive blood sacrifice to their Elder Brothers and Sisters, the Lloigr of Cthulu.
- China Mieville's novel Kraken has some Lovecraftian doomsday cultists as among the good guys.
- In The Laundry Series, a number of cults try to bring their Eldritch Abomination deities to Earth which would result in the deaths of millions and End of the World as We Know It. The Cult of the Black Pharaoh is the oldest and most dangerous one of these.
- Neil Gaiman's story Shoggoths Old Peculiar has an (initially) Unfazed Everyman American tourist who visits the picturesque English town of Innsmouth and converses in a pub with the friendly Cthulhu-worshipers who live there. He ends up with a bad hangover and a "feeling of nameless dread" (TM).
- Played for Laughs in Parks and Recreation with the "Reasonablists", who don't make any effort in ushering in their Destroyer God, Zorp. They just often make rather incorrect predictions on when the world will end and hold "End Of The World" gatherings.
- In Todd and the Book of Pure Evil, the retirement-home satanists who are trying to capture the Book of Pure Evil want to make Todd into the Pure Evil One who will destroy the world.
- The Elder Scrolls:
- The Mythic Dawn in The Elder Scrolls IV: Oblivion are attempting to destroy the safeguards between Nirn and Oblivion so that they may summon Mehrunes Dagon, the Daedric Prince of destruction.
- The Elder Scrolls V: Skyrim has the Dragon Cult from eons past (they may or may not have known that Alduin was destined to devour the world, of course).
- The geth heretics in Mass Effect worship the Reapers and actively aid them in their latest purge of the galaxy's spacefaring races.
- Shin Megami Tensei:
- Toward the end of Persona 3 a doomsday cult heralding the appearance of Nyx to bring death to the world appears. Though it only exists behind the scenes, it is led by Takaya.
- Persona 4 also has a downplayed version near the end as the fog covering Inuaba makes the people more an more apathetic it's implied that cults have started popping up.
- Call of Cthulhu had Cthulhu Mythos cults trying to do this in several campaign adventures.
- Shadows of Yog-Sothoth. The Lords of the Silver Twilight try to raise the island of R'lyeh to the surface and free Cthulhu so he can take over (and destroy) the world.
- Masks of Nyarlathotep. Cult groups controlled by Nyarlathotep himself try to perform a ritual that will let hordes of Mythos monsters into the world to destroy mankind.
- The Fungi from Yuggoth. The Brotherhood of the Beast tries to cause a worldwide catastrophe by arranging for terrorist attacks, the summoning of gigantic dholes and the activation of a giant monster in Egypt, all on the Day of the Beast.
- The Dungeons & Dragons 4E "Points of Light" setting prominently features the Cult of Orcus, which is bent upon summoning the Prince of Undeath and thereby ending civilization as we know it. This is especially true of certain low-level pre-made campaigns such as "Keep On The Shadowfell."
- In Warhammer Forty Thousand we have the Genestealer cults, who prepare the planet for the Tyranid invasion. Their apocaplypse involves the Tyranids devouring anything that offers resistance, then turning everything alive on the planet (including the Tyranid forces and surviving Genestealers) into soup so it can be absorbed by the hive fleet.
- In 8-Bit Theater, the cultist, being a parody of H.P. Lovecraft's works, wants to provoke the apocalypse because it's cool.
- South Park: the leader of the Anti-Semetic Jews captures Moses in order to ready the world for the return of Haman.
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