Horror-related media shared around the Internet
A creepypasta is a horror-related legend which has been shared around the Internet. The term "creepypasta" has since become a catch-all term for any horror content posted onto the Internet. 
These entries are often brief, user-generated, paranormal stories that are intended to frighten readers. The subjects of creepypasta vary widely and can include topics such as ghosts, cryptids, murder, suicide, zombies, aliens, rituals to summon supernatural entities, haunted television shows, and video games. Creepypastas range in length from a single paragraph to extended multi-part series that can span multiple media types, some lasting for years.
In the mainstream media, creepypastas relating to the fictitious Slender Man character came to public attention after the 2014 "Slender Man stabbing", in which a 12-year-old girl was stabbed by two of her friends; the perpetrators claimed they "wanted to prove the Slender Man skeptics wrong". After the murder attempt, some creepypasta website administrators made statements reminding readers of the "line between fiction and reality". Other notable creepypasta stories include Jeff the Killer, Ted the Caver, and Smile Dog.
Definition.
The word "creepypasta" first appeared on 4chan, an online imageboard, around 2007. It is a variant of "copypasta" (from "copy and paste"), another 4chan term which refers to blocks of text which become viral by being copied widely around the internet. Unlike copypastas, creepypastas are all horror fiction and also encompass multimedia stories, with creators using videos, images, hyperlinks and GIFs alongside text.
History.
According to Sara Bimo, "there is debate over what exactly counts as the 'first' creepypasta". Scholars and writers such as "Time"'s Jessica Roy have seen similarities in the chain emails of the 1990s, which disseminated hoaxes and urban legends, for example, by promising a terrible fate for users who did not pass them along. Horror stories such as the Rake, a fictional monster created by 4chan users in 2005, have been retroactively considered creepypastas. Some consider the 2001 story "Ted the Caver" the first.
The earliest creepypastas originate from 4chan, and the website's culture was influential in shaping the characteristics of the genre. Major dedicated creepypasta websites started to appear from the late 2000s: Creepypasta.com was created in 2008, while the Creepypasta Wiki and Reddit's r/nosleep were both created in 2010. According to "Time" magazine, the genre had its peak audience in 2010 when it was covered by "The New York Times".
The definition of creepypasta has expanded over time to include most short horror fiction whose first publication is online. Over time, authorship has become increasingly important: many creepypastas are written by named authors rather than by anonymous individuals.
Cultural impact.
Numerous short films, games, feature-length films and merchandise have been produced based on creepypastas, such as "", "Slender Man" and "Beware the Slenderman". In addition to merchandise and film adaptations, numerous amounts of fan content and independent settings/mythos have been established from creepypastas, such as with the SCP Foundation, the Backrooms and The Mandela Catalogue, with the prior serving as an example of the creepypasta descendant subgenre, analog horror.
Due to its online prevalence, a portion of creepypastas has been archived by American Folklife Center and added to their digital culture web archive under their initiative to document the development of web culture. Some folklorist view creepypastas as the digital age manifestation of legend, while others view the majority of creepypastas as anti-legends. Anti-legends are similar to legends except that they seek to purposely subvert the legends of the era by challenging the audience's expectations of what constitutes a contemporary legend.
In May 2015, Machinima, Inc. announced plans for a live-action web series curated by Clive Barker, titled "Clive Barker's Creepy Pasta", focusing on Slender Man and "Ben Drowned"; although following the shutdown of Machinima, the series was never produced. Each season of the American television series "Channel Zero" is based on a different creepypasta. Filmmaker John Farrelly was set to release a film titled "The Sleep Experiment", based on the Russian Sleep Experiment, in 2020, but the project never materialized.
Genres.
Lost episodes.
Some creepypastas exploit childhood nostalgia and distort it into something more horrific, unfamiliar. Creepypasta.com describes purported lost episodes of television shows as one of the most popular tropes. These episodes often focus on suicide or imply the viewer will suffer great harm. Some lost episode creepypastas focus on local public access shows rather than nationally syndicated shows. Notable examples of these include "Squidward's Suicide", "Suicidemouse.avi", and "Dead Bart". A "SpongeBob SquarePants" episode, titled "SpongeBob in RandomLand", had to re-edit a scene that referred to the "Squidward's Suicide" creepypasta.
Video games.
Video game creepypasta focuses on video games containing grotesque or violent content; this content may spill over into the real world and cause the player to harm themselves or others. Many video game creepypastas reveal the conflict to be caused by malevolent entities such as ghosts or artificial intelligence. Notable examples of these include "Sonic.exe", "Ben Drowned", "Herobrine", and the "Lavender Town Syndrome".
References.
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