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->''"Well, like any religion, the beliefs can tend toward positive or negative ends -- can be used for good or evil. Christianity, for example, has its Doppelgänger, Satanism. Any time you attempt to set up an icon to explain evil, you invite some warped mind to worship it."''
-->-- '''Prof. Hartridge''', ''VideoGame/GabrielKnight: Sins of the Fathers''

Most often a {{Fantasy}} trope, the Religion of Evil has no pretenses of being anything other than... well, evil. Quite often it'll be a CardCarryingVillain that refers to ''itself'' as evil; sometimes it won't say that word straight out, but its tenets and actions will be such that its followers are necessarily evil. Any time a temple's decoration involves lanterns made out of the [[NothingButSkulls skulls]] of their {{Human Sacrifice}}s, it probably qualifies here.

This religion has three common forms:
* A small SecretCircleOfSecrets (known more generally as a MysteryCult or mystery religion).
* The state religion of {{Mordor}} or TheEmpire.
* The EvilCounterpart to a ''good'' religion, whose deity is not so much worshiped or prayed for rather than appeased and bribed towards leaving mortals alone.

In the latter cases, most of the time the masses will follow the religion out of fear rather than any genuine religious devotion. In the rarer cases when it exists openly in a "good" nation, it tends to be treated as a legitimate minority faith, perhaps worshiping the evil members of the pantheon. Members of the DeadlyDecadentCourt may attend, either in search of power or just for the thrill.

Because ReligionIsMagic, devout practitioners and [[AuthorityEqualsAsskicking high ranking]] clergy will have powers, magic and other forms of TheDarkArts. You can expect the HighPriest to emanate a CrossMeltingAura.

This trope is the polar opposite of the SaintlyChurch. Also contrast with PathOfInspiration, where an evil religion masquerades as a more ordinary faith. If a genuinely "good" religion is being twisted into evil, it's the CorruptChurch. Whatever the religion of evil worships will generally be the BiggerBad, with [[DemonLordsAndArchdevils demon lords]], [[DemonLordsAndArchdevils archdevils]], {{Eldritch Abomination}}s, [[GodOfEvil gods of evil]] and {{Satan}} himself all being likely candidates.

Media portrayals of Satanism tend to fall directly into this trope; for this, see HollywoodSatanism.

'''No RealLife examples''', please! This is a ''very'' controversial subject and likely to invoke edit wars. It is sufficient to say that certain features of the Religion of Evil can be found in historical religions of human history, either because of human error, context (including a lack of), etc.
[[noreallife]]

----
!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* ''Manga/{{Naruto}}'' has Hidan, a follower of Jashin ("evil god"). Aside from the lengthy praying and kickass immortality jutsu, he's required to kill his opponents via a blood-drinking, masochistic ritual. The first thing he did when joining the religion was massacre everyone in his peaceful ninja village because he hated peace.
* ''VisualNovel/HigurashiNoNakuKoroNi'''s "question arc" revolves around an "[[AGodAmI Oyashiro-sama]]" based religion. Subverted when "Oyashiro" makes a proper appearance and [[spoiler: is largely powerless (due to a power bleed she recovers from in Day Break) and ''[[{{Moe}} adorable]]''. As well as ''very'' unhappy with the things that people do in her name due to CorruptChurch taking effect.]]
* ''Manga/DragonBall GT'' has a religion that worships a giant gargoyle named Luud that turns people into dolls and absorbs their energy. [[spoiler:It turns out to be just a giant android.]]
* The Omekata cult from ''MiraiNikki''. [[spoiler: It's revealed they weren't always like that, until Tsubaki's parents aka the leaders were killed by a treacherous follower when they were about to disband it [[GiveHimANormalLife to give their daughter a normal life]]. From then on Tsubaki been kept as their prisoner, sexually/physically abused by the members while being made to pose as their high priestess.]] And even more so, [[spoiler: in the parallel dimension created at the end, the murder of the leaders is prevented and the Omekatas remain as a benevolent group.]]
* The Followers of Kira from ''Manga/DeathNote''. Ironically they are killed off by Kira (actually Teru Mikami, a follower of Kira, but Light would have done it himself if he wasn't being watched) as they were obviously creating the cult simply for prestige and greed.
** After [[spoiler: Light's death]] they reemerge, praying for Kira's return. Possibly a subversion since we never see them do anything evil themselves, but just worshiping an evil-doer.
* The Society of Light in ''Anime/YuGiOhGX'' is never actually referred to as a cult, but it clearly is. (Its kind of obvious, given that meetings they have are clearly sermons. And seeing as the [[EldritchAbomination Light of Ruin]] is ultimately behind it, clearly evil.) The American dub version makes it even more obvious, surprisingly, giving the Society member making a sermon in one scene a voice with the accent of a stereotypical southern preacher.
* In ''Manga/FairyTail'', various cults worship the Black Mage Zeref, even centuries after his supposed death. Dark Guild Tartarus in particular [[spoiler:is led by Zeref's strongest demons]] and worship him as their master.
[[/folder]]

[[folder:Comic Books]]
* The DCU loves this trope.
** The Church of Crime in TheDCU.
*** At least they do it smart, with four branches that focus on four sins: the Deceit wing gets people to learn the religion by claiming that the whole thing is a hoax that they're seeking to expose, the Lust wing runs brothels and either slowly corrupts or outright blackmails repeat clients into Church membership, the Greed wing plays up just how much money there is to be made in crime, and the Murder wing... well, that's for people who already like killing. Hey, sometimes you gotta preach to the choir.
*** And Yea did the prophet [[SelfDemonstrating/TheJoker Joker]] raise the holy crowbar to the heretic Robin's head. And he did anoint him and again until his brains could be seen. AndThereWasMuchRejoicing.
*** In the writers' notes for ''ComicBook/FiftyTwo'' (the series which introduced the Church of Crime), Creator/MarkWaid laments that they didn't pick a better name, noting that an evangelist saying, "Come and join the Church of Crime" probably won't get many converts.
** The [[ComicBook/TeenTitans Church of Blood]]! Even Nightwing was a member at one point! Brainwashing was involved. ''All Hail Brother Blood!''
** There is also the Cult of Kobra, which controls a billion-dollar international crime syndicate and seeks to usher in the Kali Yuga (an "age of chaos") via terrorist attacks.
** Speaking of Kali, Ravan, a member of the Jihad and later the Suicide Squad, is a member of an extremist Thugee cult with an opposite mission - to ''delay'' the coming of Kali Yuga - by killing. Every time he kills, Ravan says "Another thousand years, Kali..."
** Another DCU example is the unnamed group of evil-worshipping monks that trained Prometheus and gave him the key to enter an alternate dimension.
** Apokolips, where daily life for its billions of enslaved and brutalized denizens revolves around the endless, eternal worship of the resident despotic ruler and [[GodOfEvil god-emperor of tyranny]], the cruel and malevolent {{Darkseid}}. Some really evil villains from other parts of the cosmos worship him too- including the aforementioned Church of Crime.
* The MarvelUniverse has its fair share of these as well.
** [[Comicbook/DoctorStrange Dormammu]], the demon GodEmperor and SorcerousOverlord of the [[EldritchLocation Dark Dimension]] and the archetypal DimensionLord, derives part of his power from worship from throughout the cosmos and across multiple dimensions. He is the monotheistic god-tyrant of the Dark Dimension and all other dimensions he has conquered and merged with it, and is worshipped as a god in thousands of others. His goal is to [[MultiversalConqueror conquer the multiverse]] and turn life and afterlife into [[DystopiaJustifiesTheMeans a neverending torture camp for all eternity]], ruling over everything as the new God.
** [[Comicbook/DoctorStrange Shuma-Gorath]] is another demonic god-tyrant who is worshipped throughout the cosmos, but while Dormammu is "merely" the ruler of one dimension, Shuma-Gorath is the all-powerful ruler of over a hundred entire ''universes'' and is close to being TheOmnipotent for all the power he has. He is worshipped [[GodOfGods by gods of gods]] and once ruled the Earth in the distant past (twice) where he commanded human sacrifice. A seriously evil CosmicHorror and one of the most powerful villains in the entire Marvel cosmology.
** The GuardiansOfTheGalaxy had a StoryArc that culminated in the CrisisCrossover ''TheThanosImperative'' dealing with the Cancerverse and its residents, the Universal Church of Truth, led by the {{Evil Counterpart}}s of Adam Warlock and CaptainMarvell and worshipping the new rulers the Many-Angled Ones, whose members include Shuma-Gorath and its brethern. The Many-Angled Ones tricked Mar-Vell into [[EnemiesWithDeath killing death]], procedeed to [[BrainwashedAndCrazy brainwash]] the entire universe (except for [[AntiMagic the Machine Resistance]]), and added it to their ever growing collection of universes. Eventually, with Death gone, life grew out of control and the Universal Church of Truth invaded the mainstream Marvel-verse and planned to repeat the process, but were ultimately destroyed by the Guardians and {{Thanos}}.
** {{Thanos}} himself is apparently a religious figure in a nihilistic cult he inspired / founded on an alien planet, headquarted in something called [[FriedrichNietzsche the Nietzsche institute]]. He doesn't bother to tell them when he decided that nihilism wasn't working for him anymore.
** NormanOsborn once headed a cult called the Brotherhood of the Scrier, which worshipped a nigh-omnipotent cosmic entity of the same name. The cult is an international rriminal organization, but the Scrier himself is actually closer to a TrueNeutral and not that bad a guy- it is unclear if they know this, so if they assume he really is evil and worship him anyway then they are this trope, if mistakenly. One faction in particular counts more than most when they followed Osborn after he was kicked out and became the Cult of the Goblin.
** In UltimateXMen The Hellfire / Phoenix / [[spoiler: Shi'Ar]] religion is this, "saviour" of the universe by cleansing the current one.
** The Pride from the Runaways is one of the Seceret Circle of Secerets variety. They sarifice young women to a trio of fallen angels who want to destroy all of humanity.
* The Church of Elvon in ''Nexus'' believes that all high technology increases energy consumption, and therefore increases entropy and accelerates the heat death of the universe. They therefore preach the overthrow of technological civilization by force. Violent, bloody, sadistic force. How this religion spread across the galaxy, well, hypocrisy is the tribute that virtue pays to vice?
[[/folder]]

[[folder:FanFic]]
* FanFic/{{Eugenesis}} reveals that [[Franchise/{{Transformers}} the Quintessons]] have a religion which is just as twisted, evil and insane as they are. Case in point, one of their Gods is [[PlanetEater Unicron]].
* ''Fanfic/AgesOfShadow'': The Shadow Walkers were already a dark magic cult when [[FallenHero Jade]] found them, at which point she took over and dedicated them to the worship of her [[AGodAmI "Yade Khan" persona]], along with plans for [[TakeOverTheWorld taking over the world]].
[[/folder]]

[[folder:Films -- Animation]]
* The [[SdrawkcabName Uhluhtc]] worshippers in ''WesternAnimation/HeavyMetal''.
[[/folder]]

[[folder:Films -- Live-Action]]
* The Kali worshippers in ''Film/IndianaJonesAndTheTempleOfDoom'', very loosely based on the RealLife Thuggee cult. In truth, the Thugs were more like highway bandits, who strangled travelers with scarves in their sleep to rob them. While a cult did develop that gave religious motivations to their actions, it was not very widespread. Far from an evil cult goddess, Kali is the Goddess of eternal energy, the Punisher Of Evil, and is very popular in mainstream Hinduism.
* It's treated more in the ExpandedUniverse materials than in the original films, but the Sith in ''StarWars'' are a surprising [[AvertedTrope aversion]]. The Sith do not see themselves as evil, but rather as embracing a proper, SocialDarwinist philosophy of how society should be organized--an {{Ubermensch}} ideal, KlingonPromotion as a key tool to weed out the weak, etc. Combined with their view that the Force serves them, and not the other way around, this makes the Sith more of a PathOfInspiration for TheDarkSide than a Religion of Evil.
* An early script for ''Film/FreddyVsJason'' featured a deranged cult that worshipped undead serial killer Freddy Krueger. They were called the "Fredheads".
* Many early horror films employed Satanism as a religion of this type. ''Film/TheBlackCat'' (1934), ''The Seventh Victim'' (1943), ''RosemarysBaby'' (1968), ''TheOmen'' (1976) are good examples.
** ''The Seventh Victim'' is complicated; one of the heroes gives a ShutUpHannibal near the end where he accuses the Satanists of being {{Nietzsche wannabe}}s. Also, the Satanists are mostly nonviolent and prefer to use social pressure to make people commit suicide rather than just killing them (one of them even comments on the contradiction inherent in their refusal to commit violence versus their need to kill all who betray them). But the leader does claim that he worships evil and refers to himself as "evil".
* Both ''Film/PsychoCop'' and ''Film/{{Shocker}}'' [[SlasherMovie slasher films]] feature villains who fanatically worship Satan.
* The Cult of Thorn from ''Film/HalloweenTheCurseOfMichaelMyers''. [[TheOmniscientCouncilOfVagueness Possibly]].
* The Deaders from ''Film/HellraiserDeader'', whose leader kills and resurrects its members to take over the dimension controlled by supernatural sadomasochists.
* The villains in ''{{Wolfhound}}'', the druids Zhadoba and Man-Eater, are said to be priests of the local Religion of Evil. They later turn against each other in an EnemyCivilWar, until the protagonist [[NiceJobBreakingItHero kills Man-Eater]] in revenge for the [[DoomedHometown destruction of his hometown]], leaving Zhadoba the undisputed High Priest.
* ''Film/{{Waterworld}}'' features a BigBad whose title is "Deacon of the Deep". His minions, known as Smokers to everyone else in Waterworld, are part of the Deacon's "Church of Eternal Growth", on a mission to conquer and consume all they survey.
* ''Film/{{Dagon}}'' (2001): In a small town called Imboca on the coast of Galicia in Spain, [[spoiler: a drunken tramp named Ezequiel tells Paul how the denizens of the town have overthrown Christianity in favour of the fish god Dagon, who has brought them wealth from the sea in the form of fish and gold, and the only way to appease the fish god, Dagon was through Human Sacrfice, which [[HumanSacrifice they did]] to Paul's girlfriend Barbara [[DownerEnding in the end of the film]]. ]]
* The Japanese film ''LoveExposure'' has Zero Church.
* The Necromongers in ''Film/TheChroniclesOfRiddick''. They worship pain and death, have a very sinister gothic design theme, are on a holy crusade to convert the universe to their ways and kill anyone who refuses, and ultimately want to follow their "holy half-dead" Lord Marshal into the underverse.
[[/folder]]

[[folder:Gamebooks]]
* From the ''Literature/LoneWolf'' series, the Acolytes of Vashna and the Cener Druids. The Acolytes wish to resurrect Vashna, the first and most powerful of the [[EvilOverlord Darklords]], so that he'd conquer the world with an army of [[TheUndead undead]]. The Druids plan to kill about every living being beside themselves with biological warfare. And the two are allies.
* HollywoodSatanist cult members form the antagonists in the ''Literature/FightingFantasy'' book ''Literature/HouseOfHell''.
[[/folder]]

[[folder:Literature]]
* In ''[[Literature/KushielsLegacy Kushiel's Avatar]]'' by Jacqueline Carey, a FantasyCounterpartCulture of Persia is tired of worshiping [[http://en.wikipedia.org/wiki/Ahura_Mazda Ahura Mazda]] and getting nothing for it; a cult that worships his enemy, the evil [[http://en.wikipedia.org/wiki/Angra_Mainyu Angra Mainyu]] kills the leaders of the country and takes over. It seems to pay off, as the members of this cult, who describe ''themselves'' as evil, actually do gain supernatural power, but it scares everyone else, gods and humans alike.
* The worship of Torak in the ''{{Belgariad}}'', a prime example of the case where only the Grolims (priests) have any real faith and the masses follow out of fear. They keep the faith into the ''Malloreon'', even though Torak is now dead. At the end, it's said that [[spoiler:Eriond]]'s first act as a god will be turning the Grolims towards a less vicious path.
* The Black Canons in TeresaEdgerton's ''{{Celydonn}}'' trilogy. They camouflage themselves by taking on the external trappings of whatever religion is currently in power.
* The Faith of the Pannion Seer in Steve Erickson's ''MalazanBookOfTheFallen'' is a particularly nasty example, most evident in its conversion of the combat capable population into cannibal fanatic shock troops (through implied MindControl) and the rest into their supplies.
* The Sisters of the Dark in the ''SwordOfTruth'' series have it as their stated goal to unleash the Keeper (read: Satan) on the world and end all life. (Except theirs; they believe that they will be granted immortality for doing so.)
* Darkfriends from ''TheWheelOfTime'' worship The Dark One, the antithesis of the Creator who is a SealedEvilInACan, the Can in this case being the Pattern, of which the world / universe is the tapestry. If he escapes his prison he will unmake the Pattern and bring about TheEndOfTheWorldAsWeKnowIt, but Darkfriends believe that once he has done this he will remake the world in his image and reward his loyal worshippers by resurrecting them as immortals who lord over the rest of humanity. In practice though most are actually quite terrified of the idea that this will happen in their lifetime and the majority simply joined for the perks, since Darkfriends tend to be quite well connected and for most Darkfriends its more like an international, criminal secret society and mutual benefit group. The books happen to take place as the Dark One is starting to escape, and the initial reaction of every Darkfriend is abject terror followed by varying degrees of fanaticism, resentment and paranoia towards non-Darkfriends and each other. Almost every single Darkfriend is both terrified of the Dark One beyond measure and entertains the delusions that they will be his favoured subject, and almost none of them dare to think that the Dark One is simply an OmnicidalManiac who will just destroy the world and that's it.
* Robin Jarvis has three of these in his two ''Literature/DeptfordMice'' trilogies; the cults of Jupiter, Hobb (and his co-gods Mabb and Bauchan), and Suruth Scarophion. All of them practice sacrifice of their fellow sapient animals, since there are no human characters, in gruesome manners. Jupiter eats his sacrifices, Hobb's unfortunately named followers, the Hobbers skin their victims alive in a process referred to as the "bloodybones", and Scarophion's cult (known as the Scale) poison their victims with his blood, which dissolves the victim into a puddle of tar. [[WhatDoYouMeanItsNotForKids You know, for kids]].
** Then in ''The Whitby Witches'' we get the Coven of the Black Sceptre, aka: the Brides of Crozier, a cult of crazy fangirl witches who can turn into dogs and worship the evil warlock [[SmugSnake Nathaniel Crozier]] who treats them like scum.
* The child cult that worshipped "He Who Walks Behind The Rows" in the Creator/StephenKing short story ''Franchise/ChildrenOfTheCorn'' and the movie series.
* A quintessential example is the Esoteric Order of Dagon from the Creator/HPLovecraft story ''Literature/TheShadowOverInnsmouth''.
* The [[TheEmpire Mijak]] religion in Karen Miller's ''Literature/GodspeakerTrilogy'' is an example of this, contrasting with the religion of [[SaintlyChurch Etherea]]. It's symbol was '''a scorpion''' which they bred in the temples to fill in a pool and swim in for divination. [[ThePowerOfBlood Animal blood]] was used a lot in ritual, drunk hot from the carcass and poured into pools to determine the will of god. Priests and the rulers of Mijak were chastised with beatings, including a young Zandakar. In fact [[spoiler: they are not worshipping a god, but [[DevilButNoGod a dark power]] they believe to be God]].
* Worship of Liart the Master of Torments, Achrya the Tangler of evil plots, Gitres the Un-maker, and Nayda the Un-namer in ''Literature/TheDeedOfPaksenarrion'' by ElizabethMoon.
* The Worshippers of Helgrind from Christopher Paolini's ''Literature/InheritanceCycle''. They worship a mountain that they refer to as their "dread and terrible lord," kill slaves as sacrifices, drink human blood, and make offerings of their own flesh and limbs.
* Both played straight and subverted in Mike Carey's post-ComicBook/TheSandman novels.
* Played with in the ''Literature/{{Discworld}}''. There are a few demon-worshipping cults, and Evil Harry Dread has occasionally run a temple of evil, but most people who've compared Discworld demons to Discworld gods have decided the main difference is PR. The worshippers of [[CosmicHorror Bel-Shamharoth, the Soul Eater]], on the other hand, are clearly insane. And mostly very, very dead.
** It should be pointed out that there is a "Young Men's Reformed Cultists of the Ichor God Bel-Shamharoth Association", or "YMPA" in Ankh-Morpork...
* SMStirling provides several examples:
** In the ''[[IslandInTheSeaOfTime Nantucket]]'' novels, the sadistic Dr. Alice Hong starts a cult in Bronze-Age Achaea (Greece), with herself as the avatar of the Lady of Pain, to be worshipped by [[ColdBloodedTorture torture]] and sacrifice. This cult actually has official status within the Sacred Collegium, as Hong is the senior wife and lieutenant of William Walker, King of Men.
** The Cult of Malik Nous, the Peacock Angel, in the alternate history novel ''ThePeshawarLancers''. It is the prevalent religion in the remains of tsarist Russia following a meteor shower that destroys most of the northern hemisphere and involves the worship of the Slavic dark god Tchernabog, cannibalism and [[VirginPower virgins who can tell the future]] (to make matters worse, their powers eventually drive them to insanity, at which point they are taken away to become [[IncestIsRelative breeders for the next generation]]).
** The Church Universal and Triumphant (C.U.T.) in his ''{{Emberverse}}'' series.
* The Yuuzhan Vong from the ''StarWars'' ExpandedUniverse have a priesthood devoted to genocide, non-consensual bio-forming, and extreme masochism.
* The Thebans in the ''{{Starfire}}'' books, who embark on a holy crusade to bring humans back into the light of worshipping Holy Terra. Never mind that they're aliens (explained later, trust me). There is seriously ''one'' Theban dude who does not like the prospect of the campaign.
* In Creator/JRRTolkien's ''Literature/TheLordOfTheRings'', the DarkLord Sauron was worshipped as a god-king by the humans under his control. (The orcs, however, just saw him as their cruel slave-driver.) Aside from their leaders, though, they weren't themselves evil -- they were forced to worship Sauron out of fear through lies and threats, not faith or devotion. This doesn't really come across in the movies.
** Sauron also managed to convince Ar-Pharazôn and the Númenóreans to worship his master Morgoth/Melkor with HumanSacrifice, as part of the chain of events that lead to the downfall of Númenor described in ''Akallabêth''.
* The religion of the Pah-Wraiths in the ''Franchise/StarTrek: Millennium'' series may qualify, as the "Ascendants"' principal aim was to destroy the universe for reasons of cosmic harmony. This may also be an example of UtopiaJustifiesTheMeans.
* ''FridayThe13thChurchOfTheDivinePsychopath''
* The established church in Creator/GeneWolfe's ''Literature/BookOfTheLongSun'' is this, since the gods being worshiped, with one or two exceptions, are deranged sociopaths whose idea of a commandment is "Overthrow your government and let me know when it's done; if you sacrifice enough children you'll probably get my attention." Interestingly, though, the church itself is closer to a SaintlyChurch: individual clergy may be corrupt or unpleasant, but the church as a whole is a force for good, providing education and charity to the poor of the city.
* The entire plot of each ''OddThomas'' book is the titular character foiling one of these. The first book? Satanists. The second? A crazy woman that has studied evil religions all over the world. The third? A guy that ''claims'' he can create life. The latest has apparently radical Islamics that planned to assassinate important government officials before blowing up several American cities with nukes.
* David Weber's ''[[TheWarGods WarGod]]'' series has a pantheon of evil gods.
** The one who appears most often in the trilogy is Sharna, a [[DemonicSpiders scorpion-God]] of demons and [[ProfessionalKiller assassins]], although in the second and third books several more show up. Their worship is pretty classically evil, with rituals involving [[RapeIsASpecialKindOfEvil gang rape]], mass [[ColdBloodedTorture torture]], and [[IAmAHumanitarian cannibalism]]. [[FateWorseThanDeath Or worse.]]
** About the best of the lot of them is Carnadosa, the Goddess of wizardry, who is more ChaoticNeutral than true evil. Her followers are generally depicted as smart and possessed of personal honor.
** [[FridgeLogic Strangely enough,]] although it's frequently emphasized in the text that no form of power is inherently evil and that it's only the ''methods'' that make dark wizardry evil, there seems to be no incentive for wizards to stay 'white,' since there are no 'good' institutions to counterbalance the Church of Carnadosa. The only representative of white wizardry is [[TheArchmage Wencit of Rum,]] and he seems to have no interest in taking apprentices or forming a new White Wizard academy (even though a similar institution exists for magi.) He's much too busy going around and executing wizards on the spot without any opportunity to reform. The practice of wizardry is also described as so seductive that those born with the talent cannot resist using it. And since it's illegal in every country in the world, you can't exactly join a support group for it. So essentially, [[FailureIsTheOnlyOption if you are born with any kind of wizard power, you have no other options besides joining the Church of Carnadosa, practicing blood magic, and eventually getting killed by Wencit of Rum.]] [[NiceJobBreakingItHero Nice.]]
* ''Literature/PrinceRoger'':
** The Fire Temples in the volcanic land of Krath. Despite being a theocracy, none of the natives are willing to talk about their religion at all, and laws in the cities are quite prohibitive. They trade for slaves to act as "Servants of the God." [[spoiler:These "servants" are sacrifices which are roasted and then served in chunks to the people of the cities.]] There's a reason the local pirates fight to the last man to avoid capture.
** Averted with Armagh's Satanists. They're the victors of a nasty schism on an all-Catholic planet, where they simply decided not to fight being called minions of Satan by a vicious inquisition. Their doctrine holds that God is being held prisoner by the angels, and the rebel armies of Satan will liberate him on judgement day. Other than the bizarre terminology in worshiping His Wickedness, they're good people.
* The Maruli in ''Literature/TheStoneDanceOfTheChameleon'' bring {{Human Sacrifice}}s to a god they call "The Darkness Under The Trees". They appear to greatly fear him themselves and keep him imprisoned on the Island of Flies.
* One of the most Badass Evil Church of Evils around would be the pantheon in ''Literature/LordOfLight'', by Creator/RogerZelazny. Not only did the evil gods have all the psionic superpowers of the Hindu gods, but if you wanted to be reincarnated in a younger body, then you had your mind scanned for disloyal thoughts: have some and BAMF! you're reborn in the body of a smelly ape.
* In Creator/RobertEHoward's ''ConanTheBarbarian'' story "Literature/AWitchShallBeBorn", Salome institutes HumanSacrifice as part of the religious practices. In both "Literature/ThePhoenixOnTheSword" and "Literature/TheScarletCitadel", the worship of Set. Indeed, the first story has the only hint of WhiteMagic and the intervention of good gods in Howard's stories. The nation of Stygia is crawling (or slithering) with really nasty Set worshippers. Pythons are allowed to eat people in the streets as sacrifices. In a move sure to annoy RealLife Hindus, Howard also depicts the religion of Hanuman as evil.
* In the ''{{Kull}}'' story "The Shadow Kingdom", the priests of the Serpent. Then, they are half-human half-snake and do it to control people.
* In Creator/RobertEHoward's ''{{Kull}}''/''BranMakMorn'' story "Kings of the Night", EvenEvilHasStandards is a comparison between two:
-->''The Druids of his own isle of Erin had strange dark rites of worship, but nothing like this. Dark trees shut in this grim scene, lit by a single torch. Through the branches moaned an eerie night-wind. Cormac was alone among men of a strange race and he had just seen the heart of a man ripped from his still pulsing body.''
* The worship of Lolth in ''WarOfTheSpiderQueen''
* The state religion/culture of Skrea in ''TheKingdomsOfEvil''
* Literature/TimeScout brings us JackTheRipper and Aleister Crowley.
* In ''Ape and Essence'' by Aldous Huxley, the post-apocalyptic Los Angeles is ruled by Belial worshipers. The devastation wrought by WorldWarIII made them lose belief in any deity but a malevolent one.
* Played with in the ''BooksOfSwords'': some of the gods, most notably Mars and Vulcan, are clearly malevolent, even evil. Interestingly, however, even though religion clearly exists in this world, we see very little organized religion. The only exceptions are the White Temple, which worships Ardneh, the Blue Temple, which ostensibly worships Tyche, and the Red Temple, which ostensibly worships Bacchus and Venus. Practically speaking, however, the White Temple is really a chain of hospitals, the Blue Temple is really just a bank, and the Red Temple is a chain of casinos and attached brothels. All three continue to function long after the gods they worship are dead. There is a reference in one book to a wizard bringing magical sacrifices or offerings to Mars to win his intercession in a battle, but that's about it for the explicit worship of any of the gods.
** In the ''Empire of the East'' trilogy, however, it is made clear that Orcus, the demon prince, did compel his followers to worship him, so the titular [[TheEmpire empire]] was itself a Religion of Evil, at least until Orcus' top lieutenants overthrew him in a coup.
* In Creator/JohnMilton's ''Theatre/{{Comus}}'', Comus and his followers worship Hecate with evil rites.
* TaylorAnderson's ''Literature/{{Destroyermen}}'' series has [[TheTheocracy the Holy Dominion]], an empire located on an alternate America founded by Spanish conquistadors from our world mixed with a {{Mayincatec}} tribe (also from our world). After many centuries, the Dominion's version of Catholicism has adopted several Mayincatec facets, including the cult of pain and blood sacrifices. Basically, they believe that Jesus endured pain and spilled blood for our sins, which must be repaid in kind. Thus, in order to be close to God, so must everyone else. Only painful death in God's name can bring one closer to Him. Naturally, they believe that everyone should worship this religion, and the Dominion's blood cardinals spread the message. The author constantly insists that this is most definitely an evil perversion of RealLife Catholicism, especially since one of the good characters is a Catholic nun from our world. Another character, an OmnidisciplinaryScientist, is also a Catholic, although there's constant friction between him and Sister Audrey, who doesn't believe that an evolutionist has any right to call himself Catholic.
* In ''Literature/TheDresdenFiles'', it's mentioned that [[OurVampiresAreDifferent the Red Court]] encouraged the Aztec religion's notorious propensity for HumanSacrifice to keep themselves as well-fed as possible, with their highest nobility taking the place of gods.
* The underground demon worshiping cult from ''Literature/OfFearAndFaith'' that tried to sacrifice Elin was definitely this. Elin sees them sacrifice another woman and summon a demon inside her that rips its way out of her chest and then devours her body. All in all, not a nice bunch of folk.
* In the ''{{Discworld}}'', the Guild premises belonging to the Fools and Clowns were formerly the Monastery Of The Brotherhood of Infernal Zoth, the Undying Renderer. This religion ended abruptly one night when the buildings were wiped out by a localised earthquake, lightning, and mysterious fire.
* Grubindy's streetspeakers of Fate in ''Literature/FatesRoad'' kidnap children from their parents if their parents don't follow their teachings. They also worship Fate, which is known in Grubindy for a) trapping them underground and b) causing their cavern to cave in and crush half the town.
[[/folder]]

[[folder:Live-Action TV]]
* On ''Series/TrueBlood'', Maryann Forrester is a Maenad who mind-controls humans into worshiping Dionysus (Greek god of madness and ecstasy) through wild orgies and ritual sacrifice.
** The Sanguinista Movement, a group of Vampires who follow the Vampire Bible and fanatically worship Lilith. Their belief is that humans are food and nothing else, the complete opposite to the mainstreaming Vampires.
* ''Series/StargateAtlantis'': The Wraith worshippers believe that their [[OurVampiresAreDifferent vampiric overlords]] are godlike beings. The religion itself venerates culling of humans, mindless obedience to the Wraith and a prophecy foretelling the end of all human beings. The Wraith themselves just consider it a useful tool to instill complete loyalty in their followers.
* ''Series/StargateSG1'' has the religion of Origin, which while not evil in an of itself, is run by Alterans that have managed to Ascend. Its Priors also twist the meaning of the religion's holy book to justify mass murder and conquering other people whether they want to convert to Origin or not.
* The Shine Shine Dan from ''Series/WarriorOfLoveRainbowman'' are the KKK (against Japanese) [[RecycledINSPACE with monsters]] and FacelessMooks.
* The Cult of the Pah-wraiths from ''Series/StarTrekDeepSpaceNine'', which may also qualify to be a PathOfInspiration.
* ''{{Buffyverse}}'':
** The Harbingers who worship the First Evil, and every cult of the series. At least one Wolfram & Hart security guard/soldier told Angel that he believed, specifically, in the cause of evil, by name. [[spoiler:Angel using the guy's own shotgun to blow his head off]] did make others at least briefly re-evaluate their positions, however.
** Some of Twilight's followers worship him as a god.
* An episode of ''Series/CriminalMinds'' featured a cannibalistic villain who worshipped Satan (or some kind of demonic entity). During the raid on his house, they find a hidden, demonic shrine, the walls of which were covered in Francisco Goya's Black Paintings and creepy symbols and {{Madness Mantra}}s written in blood.
** It's notable that the profilers state "He doesn't kill because he believes in Satan, he believes in Satan because he kills."
* ''{{Lexx}}'' is built on this the first two seasons, with this "religion" being enforced on ''at least 20,000 worlds, ''in the '''''goddamn Light Universe''''', even going to the almost absurd levels of the quote above, the only difference being that that is a parody, where this is a black comedy. Turns out [[spoiler:it's just the ploy of an insect civilization to destroy [[UnwittingPawn humanity]] from the inside.]] And it worked.
* ''Series/DoctorWho'' features the Silence, whose belief that "silence will fall" when the oldest question in the universe is asked drive them to [[spoiler:kidnap Melody Pond and brainwash her into killing the Doctor]]. Their most prominent adherents are members of a species of [[TheGreys Grey]]/TheMenInBlack hybrids who [[LaserGuidedAmnesia make people forget all about them as soon as the people look away]], and who have secretly controlled humans since humanity first existed.
** Slightly subverted in "The Time of the Doctor". The Papal Mainframe the Church of the Silence is from turn out to not be so bad, the Doctor is on reasonable terms with them. The Silence who were causing the Doctor trouble were a splinter sect.
** The Daleks in the series 1 finale. The last Emperor Dalek to survive the Time War developed a massive [[AGodAmI god complex]] and rebuilt the Daleks as religious fanatics who worshiped him. "[[MadnessMantra DO NOT BLASPHEME! DO NOT BLASPHEME!]]"
** The Disciples of Saxon in ''The End of Time'' worship The Master as a living god and ultimately bring about his resurrection.
* In ''RobinOfSherwood'' there are three-and-a-half of these. First, Lilith and her unnamed companion who serve Simon de Belleme in the worship of Aziel (Simon's in it for the power, and his other servants are bewitched slaves, but Lilith seems to be a devotee). Second, the Lucifer-worshipping nuns in "The Swords of Wayland". The odd one out is "Cromm Cruac": the villagers indulge in human sacrifice, but they get an idyllic life in exchange - it's self-interest, not ForTheEvulz. Gulnar, that time round, gets involved for the sake of revenge - again, a normal human motive. But in Gulnar's next appearance, "The Time of the Wolf", he's running a murderous apocalyptic cult that really does seem to be just For the Evulz.
* Subverted with the Cult of Baltar in ''Series/BattlestarGalacticaReimagined''. They are perceived as a religion of evil by the fleet but are actually very peaceable.
** Played straight with the Sons of Ares.
** The Cylons themselves occasionally veer into this with their religious fanaticism.
* 'Series/TheFollowing'' features "Carrollism," a cult founded by SerialKiller Joseph Carroll. Loosely based on the works of EdgarAllanPoe and general Gothic sentiments, it depicts murder as an artistic/creative act, and encourages practitioners to "find their voice," by coming up with their own signature murder style.
** Ultimately it is a {{Deconstruction}} of the concept, showing that an organization composed of murderous sociopaths would [[RealityEnsues eventually collapse under the weight of the collective dysfunctions of the its individual members]]. Not enough of them are sane enough to have any clue what their doing.
** Season 2 introduces a new cult even ''crazier'' than Joe's. Micah's cult is full of people who are ''excited'' to be a HumanSacrifice.
* ''Series/{{Atlantis}}'': The Cult of Dionysus is this. Your average kidnapping, brainwashing, and human sacrificing cult with a penchant for [[OminousLatinChanting Ominous Greek Chanting]] and owning a pack of trolls to set upon strangers.
* The pagans in ''Series/{{Reign}}'' although there's reason to believe it wasn't always like that. Once it worshipped nature now it's centered around an unknown and presumably demonic entity in a cave somewhere in the Blood Forest.
* In the ''Series/MastersOfHorror'' episode "The Screwfly Solution", the Sons of Adam are a psychotic fundamentalist Christian cult who claim they are dedicated to 'freeing' the world of [[{{Gendercide}} all female presence]] and restore it as it was in the Garden of Eden before God created Eve.
[[/folder]]

[[folder:Tabletop Games]]
* Most ''TableTopGames/DungeonsAndDragons'' settings have one, if not dozens of these; the followers of Lolth from ''TableTopGames/ForgottenRealms'' and ''TableTopGames/{{Greyhawk}}'' and Takhisis from ''{{Dragonlance}}'' are only the most prominent examples.
** Other major examples in the standard Third Edition ''D&D'' cosmology are the churches of Hextor, Nerull, Erythnul, Gruumsh, Maglubiyet, Tiamat, and any of the DemonLordsAndArchdevils.
** Hextor's church falls between this and PathOfInspiration. Where his clerics have power, they openly preach his creed of militarism, conquest and tyranny. In other places, they claim he's a god of fitness, discipline and strength.
** Subverted in ''{{Eberron}}'' with the death/ancestor worship of the Aerenal Elves. Plenty of trappings that would be red flags in most settings (skull motifs, efforts of worshippers to look more dead, fallen troops remaining on duty) but they are as benevolent (if somewhat less universalist) as the Silver Flame (not counting the {{Knight Templar}}s in the organization).
** ... And then played straight with the Blood of Vol. Uncharacteristically, the setting information tries to be fair to those guys, despite their obvious black-hat practices like human sacrifice, necromancy, and immortality experiments. The cult's guiding moral philosophy is explained at great length and often from a sympathetic perspective; the faithful truly believe that this life is a torment and undeath is an acceptable escape. It's almost too bad the cult was founded by a diabolically evil lich who is using it for her own nefarious ends. [[WordOfGod Turns out]] she co-opted a pre-existing faith, and repackaged it into something more organized, and under her control.
** Interestingly, becoming a thinking undead is actually ''discouraged'' for the majority of the the faithful. This is because the Bloods' faith places a lot of importance on the potential divinity inside a mortal -- the undead are seen as having given up their chance for true divinity in order to protect and guide the faithful (also, most Blood-followers don't actually regard ''life'' as a torment, it's the death part that is seen as pointlessly cruel [which makes sense considering what the known afterlife looks like in Eberron]).
** The Dark Six are a classical pantheon of evil deities cast away from the main pantheon... and [[ChaoticNeutral The Traveller]]. It's possibly subverted, as the Dark Six [[UnreliableNarrator could be]] ''gods of nature'' that were removed from the Sovereign Host not because they were evil, but because the Sovereign Host was becoming the religion of civilization. Which, together with Eberron's Absent Deities-situation, leads to their evil possibly being a result of the Dark Six-worshippers gradually, over the ages, beginning to believe the propaganda spread about their deities.
** A better example of being played straight is the typical Khyber Cult. They don't worship Khyber, just [[EldritchAbomination whatever]] they run across.
** Evil faiths in TableTopGames/{{Ravenloft}} tend more toward the PathOfInspiration model, but there are a number of minor cults dedicated to various Religions Of Evil imported from other gameworlds via the Mists. Of faiths native to the Land of Mists, that of the Wolf God (divine patron of werewolves) is the best example of an openly-bloodthirsty, destructive faith that looks to lay waste to civilization.
** The ''worst'' example of this trope in Ravenloft (possibly the worst example ''period'') is the cult of the god Zhakata in the realm of G'Henna. Zhakata is not even a real god. He only exists in the deluded mind of the realm's mad Lord, Yagno Petrovna. Followers of this religion believe that if they starve themselves, it will eventually bring about the coming of Zhakata in his role as the Provider, bringing endless prosperity and bounty. This had turned G'Henna into a poverty-stricken wasteland, with its citizens waiting for a pretend savior that will never come.
** ''TableTopGames/{{Planescape}}'''s Factions throw a wrench into this. There are quite a few of them who follow a belief system most of us wouldn't hesitate to describe as "evil" if we came across it in reality, but ''Planescape'' does its best to portray them from a detached, non-judgmental standpoint, often with inspiration from real life. The ridiculously callous and selfish Fated justify themselves based on, essentially, the writings of Nietzsche and Ayn Rand. The Dustmen, who have all of the trappings of a Religion of Evil (decorating things with skulls and wearing black robes and using zombies and such) have a belief system that is Buddhism with the added twist that they believe they've already lived their life and are now trapped in an existence of rebirth into a state of "False Death" until their souls learn to let go of suffering and attachment. The Doomguard has a philosophy centered around the inevitability of entropy, which can range from OmnicidalManiac behavior to a simple acceptance that [[EquivalentExchange nothing can be accomplished without destroying something else]].
** Ironically, the Harmonium - a group known for being LawfulStupid at best and a bunch of {{Knight Templar}}s at worst - admire St. Cuthbert the God of Justice, regarding him as their patron god. Whether St. Cuthbert approves - or cares - about this isn't know, although their are many clerics of his clergy among the Harmonium.
** Interestingly enough, in the default ''D&D'' cosmology evil people generally still go to the so-called Lower Planes (assorted afterlife dimensions, although only one group is considered "Hell" proper) after death to be tortured by the local denizens. If one is sharp and tough, however, he/she can survive and become more powerful. Most denizens of the Lower Planes don't envision themselves in any other place -- with the notable exception of the prison plane of Carceri, where no-one wants to end up, and everyone who's already there wants out.
** ''Fiendish Codex II'' notes that most evil people are egotistical-- they don't look at lemures or dretches (bottom-of-the-barrel devils and demons, respectively) and think that will be their afterlife. They think they'll shoot to the top of the infernal hierarchies immediately. In addition, resurrection magic doesn't generally leave the revived with memories of where their soul ended up, so nobody has firsthand information as to what happens after you get killed.
** Both subverted and played straight in the new fourth edition of ''D&D''. Some evil gods actually have large (rational) followings that aren't typically seen as "evil". For example, non-evil worshippers of Bane (god of tyranny) might see him as the patron of "rightful and strong authority", and Grummsh (god of savagery) is worshipped by many as the "god of strength and conquest". A new deity, [[TheTropeWithoutATitle the Raven Queen]], is worshipped as a personification of Death without the evil overtones (and is a mixture of Wee Jas and Morr from ''TabletopGame/{{Warhammer}}''). On the other hand, for those who like this trope straight, we still have Lolth, Vecna, Torog, etc., and also a lot of classic Demon Princes who are worshipped as gods by deranged cultists. Some of the more "evil" gods can be justified: for example, Torog's domains include jailers and torturers-- necessary? Perhaps. Likeable? No, not at all.
** The Raven Queen also has a good bit of MySpeciesDothProtestTooMuch, as plenty of her worshippers are a bit overenthusiastic. (Shadar-kai especially tend to end up as random encounters.)
** The one that takes the cake is probably Tharizdun, the god of {{omnicidal mania|c}} who has been imprisoned since the dawn of time by all the other deities (good, neutral, and evil) working together. ''He still has worshipers.''
** ''TableTopGames/{{Pathfinder}}'' has a number of these. The Church of [[{{Satan}} Asmodeus]] controls [[TheEmpire Cheliax]], while their neighbour, Nidal, worships [[TortureTechnician Zon-Kuthon]]. Cultists of [[ProfessionalKiller Norgorber]], [[TheUndead Urgathoa]], [[MotherOfAThousandYoung Lamashtu]], and [[OmnicidalManiac Rovagug]] are distressingly common, both among society's outcasts, and the setting's various monsters. And that's without getting into the cults centred on various DemonLordsAndArchdevils, evil demigods, or gods forbid, [[HorsemenOfTheApocalypse The Four Horsemen]]. The Demon Lord [[KillerGorilla Angazahn]] in particular has a substantial following in the [[DarkestAfrica Mwangi Expanse]].
* In the NewWorldOfDarkness game ''VampireTheRequiem'' there's Belial's Brood, a covenant of vampires that are debauched and cruel even by vampire standards. And this is a DarkerAndEdgier CrapsackWorld where being a FriendlyNeighborhoodVampire is nothing but a pipe dream. So trust me: "Debauched and cruel by vampire standards" means they aren't so much at the bottom of the barrel as outside of it holding up a liquor store. Their cults believe that the [[EnemyWithin inner "Beast"]] that all vampires struggle with is actually a fragment of divinity caged by imperfect humanity; so, in an effort to "liberate" and master the Beast, they deliberately lead their followers in acts that drive the KarmaMeter down faster than mercury in Antarctica.
** The Brood are a Religion of Evil''er'' to other vampires, while the Lancea Sanctum have set themselves up as a Religion of Evil to humanity, as they act as a dark mirror of Christianity (and other mortal faiths to an extent). Their message is "don't sin against God, or you will be [[CursedWithAwesome cursed like us]]."
** The Circle of the Crone, being vampiric NeoPaganism, somehow manages to pull this off, to the extent that learning dots in their Discipline causes a ''permanent'' reduction in the vampire's maximum [[KarmaMeter Humanity]] score. Admittedly, this might be due to EarlyInstallmentWeirdness.
** ''Mythologies'' introduces the optional Mithraism heresy, which is unabashedly this. Simply gaining levels in a Mithraic cult requires acts of evil depending on initiation level; these range, in order, from utterly destroying an aspect of a target's life, to shattering a target's will, to driving a target over the MoralEventHorizon on-purpose, to engaging in a mass slaughter of human victims with nothing but one's natural weapons, to using treachery to indirectly kill another vampire, to purposefully committing [[YourSoulIsMine Diablerie]] upon a more powerful vampire [[DeaderThanDead whilst they are being consumed by full sunlight]].
* For another TabletopGame/NewWorldOfDarkness example, there's also the Ministry of Paternoster, one fourth of the [[AncientConspiracy Seers of the Throne's]] major factions in ''TabletopGame/MageTheAwakening''. To them, [[{{Muggles}} Sleepers]] worshiping Supernal truth profanes the [[DeityOfHumanOrigin Exarchs]], so it is their duty to [[PathOfInspiration remove all truth in religious doctrine]] while being true to the Seer credo of utter domination over the Sleeping world. Notable for being a ''KnightTemplar'' Religion of Evil, since unlike most, cynical Seers, [[BelievingTheirOwnLies they have deluded themselves into truly believing they're a good thing for the world]]-once all Supernal truth has been scoured from the Fallen World, the Exarchs will make the world a utopia under their benevolent hand. In this, they're a pretty good EvilCounterpart to Pentacle mages (the default good guys), who all make a point of questioning their own beliefs.
* The OldWorldOfDarkness has a few of these as well:
** ''{{Werewolf The Apocalypse}}'' has the Black Spiral Dancers, a tribe of Garou who worship the Wyrm (the spirit of decay and destruction). The Black Spiral Dancers have their own pantheon, rites, and a sophisticated theology, as seen in ''Chronicles of the Black Labyrinth''.
** The first edition also features the Seventh Generation, a human cult that serves the Wyrm's Defiler aspect.
** ''{{Vampire The Masquerade}}'' has kindred who follow the Path of Typhon, and a couple other Paths of Enlightenment that are ForTheEvulz. There are many other {{splat}}s that deal with demon worship, but those are more along the lines of ''[[DealWithTheDevil quid pro quo]]'' than true devotion.
** The game's most enduring example are the Baali, an ancient sect of infernalists considered vile even by kindred standards.
** And then there's the Sabbat, who could be considered the predecessors of both the Lancea Sanctum ''and'' Belial's Brood. Many of them worship Caine, the first vampire, and believe that during [[TheEndOfTheWorldAsWeKnowIt Gehenna]], he will rise up and save his childer from [[EldritchAbomination the Antediluvians]] that mean to devour them. Their membership consists of the most amoral vampires (and ''that's'' saying something), who often have to pick up [[BlueAndOrangeMorality alternate Paths of Enlightenment]] to avoid falling to their Beasts and practice twisted rituals that often involve human sacrifice (Their interpretation of the rite of baptism, for instance, requires [[BloodBath immersion in a literal bath of blood]]). And the real kicker? They ''fucking hate'' infernalists.
** Let's not forget The Followers Of Set, a clan that, save for branch groups like the Serpents of Light, worship Set, their antediluvian ancestor and the one they believe to be a god. The main tenants of their faith revolve around absolute corruption, in all its forms, of anyone and everyone. Not surprisingly, most clanmembers follow the Path of Typhon. Also, Settites have a [[ReptilesAreAbhorrent snake theme]], complete with their clan discipline Serpentis.
* Enter worship of any of the Gods of Chaos in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/{{Warhammer 40000}}'' and you hit Religion of Evil levels very quickly. Each Chaos God has their own angle: Slaanesh worshippers pursue emotional excesses, Khorne worshippers seek only to spill blood in Khorne's name, Nurgle worshippers spread disease and despair, and Tzeentch worshippers are fuelled by ambition and seek to evolve and change. The downside is that there is a roughly 99% chance of getting possessed, sacrificed, burned by witch-hunters or simply [[TheCorruption turning into a screeching, frothing, mindless mutant abomination with four heads that vomit blue fire]]. Absolute power corrupts absolutely, but only Chaos gives you eyes inside your mouth.
** There's also the other side of that coin; the Gods of Chaos are the gods of bloodshed, disease, sexual perversion, and mutation. They're ''also'' the gods of Honor, Fortitude, Love, and Hope. As you can probably imagine, it's pretty damned hard to out-crapsack the [[CrapsackWorld Crapsack Universe]] of [=40K=].
** That said, as mentioned by Literature/CiaphasCain (in SandyMitchell's ''The Traitor's Hand''), many Chaos cultists start out presuming the organizations they're joining are relatively innocuous like crime networks, interesting occult or deviant pleasure groups, or even social reform movements; they often only grasp the true nature of what they've joined when they're far too corrupted to even care anymore. The cult in that book mostly consisted of the bored, and very few of them had any idea what they were getting themselves into.
** At least in ''TabletopGame/{{Warhammer}}'', many of the cults initially present themselves as organizations for social and political change, something that the Empire could rather use.
** Because of the way Chaos works (having an open mind will leave you defenseless against demons), Chaos often infiltrates and takes over ''actual'' rebellions and social reform movements.
*** In ''40K'', actual rebellions often turn to Chaos because they literally have no other choice. The Imperium is stronger than they are and ''will'' punish them just as badly for rebelling for non-Chaotic-causes anyway; they turn to Chaos worship because they have nothing to lose, and considerable advantages (sorcery, powerful blessings/mutations, daemonic warriors, alliances from Chaos Marines, etc) to gain.
** Chaos Cultists tend to view the mutations and horrible deformities as blessings. There does exist for every follower of chaos a very small chance of getting immortality by being promoted to a demonic demi-god. Most of them die or go insane way before ever getting close, but as with the D&D example above, most don't look at the likelihood of death or spawnhood and think "hey, that could be me"; they're convinced that they will be among those lucky enough to ascend to daemonhood.
** The Word Bearers Legion take this trope to its logical conclusion. In fact, Lorgar devoting himself to his official Religion of Evil is responsible for the 40kverse being the [[CrapsackWorld Crapsack Universe]] it currently is; it was Lorgar's minions who secretly manipulated events so that the HorusHeresy was inevitable -- it was even a Word Bearer Chaplain who conducted the Chaos ritual that ultimately saw Horus corrupted and sworn to Chaos.
** The best part? The other religions aren't that much better. At least Chaos is sort of honest about what it does, and doesn't pretend to be good.
** In fact, the Imperial Cult worshipped by the Imperium? Created by [[Characters/WordBearers Lorgar]], primarch of the Word Bearers, as his first try at organized religion; when the Emperor smacked him upside the head with the fact he did ''not'' want any religions in his Imperium, even -- or especially -- if those religions deified him as a GodEmperor, Lorgar went running into the arms of the Chaos Gods.
** The most interesting legacy of Lorgar may be the Chaplains, the unique sect of {{Warrior Priest}}s amongst the Space Marines. Their official purpose is to help keep Space Marines from being corrupted; however, not only were they created by the very first Legion to be corrupted (none of the other Traitor Legions have fallen Chaplains amongst their ranks because Chaplains were strictly found amongst the religiously-zealous Word Bearers), they were actually instrumental in corrupting the other Traitor Legions. Nobody remembers this fact now...
** The Genestealer cults. Worshippers of a HordeOfAlienLocusts, whose membership is made up exclusively of the victims of FaceFullOfAlienWingWong and their HalfHumanHybrid children. They exist to increase their membership until they register in the HiveCasteSystem, at which point the bugs turn up and devour everything on the planet, ''including the cult''.
* A small cult in the setting of the ''REIGN'' RPG believes in heaven for the good, hell for the evil and reincarnation for everyone else. They ''also'' believe that if you are killed by the archery-based martial arts style they invented, you get "promoted" in the afterlife. Thus, if you kill an evil person, they come back and get another chance, while killing anyone else gets them into heaven before they can do anything bad! They killed a ''lot'' of people.
* In ''MagicTheGathering'', until its destruction Phyrexia (think equal parts CyberneticsEatYourSoul, BodyHorror, and TheLegionsOfHell) always had religious traits, with [[BigBad Yawgmoth]] at the head. These traits have been exaggerated by the [[http://www.wizards.com/magic/magazine/Article.aspx?x=mtg/daily/stf/137 white-mana faction]] of the reborn Phyrexia, calling itself the Machine Orthodoxy. In keeping with its Phyrexian nature, it really isn't very pleasant; the flaying and horrible mutilation of enemies and converts, gratuitous use of ritualised surgery, and [[OurAngelsAreDifferent stripping angels of their honour]] and [[FallenAngel turning them into sociopathic monsters]] all get four thumbs up from the average [[FanNickname Whiterexian]]. For added horror, white has [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=218058 Phyrexian Unlife]], which depicts [[UncannyValley an androgynous but most likely female porcelain mask looking at her newly-compleated hands]]. And who do you do this to when you cast it? A [[{{mooks}} creature]]? No. Your opponent? No. You do it to ''yourself''.
* Such cults fit in well in the world where ''TabletopGame/{{KULT}}'' is set in.
* ''{{Exalted}}'' features cults worshipping the Yozis, the titanic Demon Princes who created the world but were overthrown by the gods. Yozis are insane and evil, horribly twisted by their rage against the gods, and they want to corrupt Creation into a horribly painful hellhole. If they ever escaped their [[SealedEvilInACan prison-world]] and remade the world the way they now want, it would be a FateWorseThanDeath for all humanity. Indeed, before they were overthrown, humans were one of the most miserable species in existence. Nonetheless, some humans worship them and work to free them.
** The Yozi generally don't play up the "We're going to wreck the world" angle. Most cult leaders tell their followers that the Yozi are going to fix the sorry state of Creation...Or just say they [[TheRevolutionWillNotBeCivilized NEED to wreck the world first in order to fix it]]. When you spend your entire life farming and toiling just for another day of life while the Gods try to extort worship out of you, and the Exalted (Currently Dragon Blooded, formerly Solars) live like kings...A total change to the world where you don't toil just to keep breathing seems pretty damn appealing.
** And, from a certain perspective, The Cult of the Illuminated.
* ''TabletopGame/{{Talisman}}'':
** ''The Dragon'' expansion features cultists who worship the various dragon lords, doing their bidding in the world by attacking the player characters. These cultists invariably receive a combat bonus when the particular dragon lord they worship is the dragon king, sometimes doubling their effectiveness in battle or psychic combat.
** The Dragon Priestess player character is implied to have a leadership position in the aforementioned dragon cults, having the abilities to automatically take cultists as followers, and to make sacrifices to dragons they encounter in exchange for random benefits.
** Other types of cultist enemies are thematically linked to various "boss" characters, such as the Ice Queen, the Eagle King, and the Dungeon Lord.
[[/folder]]

[[folder:Video Games]]
* The worshippers of whatever ancient deity you pick in ''EternalDarkness''.
** Except possibly Mantorok, who seems to have posed as a relatively benevolent god for the locals.
* The Cult of the Damned in ''VideoGame/{{Warcraft}}''. Originally they were often seduced by promises of eternal life, social grievances, and disillusionment with the Holy Light. In the modern era this is exacerbated by the widespread trauma and suffering experienced by humanity. Members are given a potion after their initiation that removes their ability to object and makes them unquestioning fanatics.
** And the followers of the demons of the Burning Legion from the same series.
** Also the Twilight Hammer, who worship the [[EldritchAbomination cosmic horroresque Old Gods]]. The entire goal of their religion is to bring about the end of the world.
* The Nihilist Church in ''{{Lusternia}}''. They worship five [[DemonLordsAndArchdevils extraplanar entities]] that are essentially AnthropomorphicPersonification posterboys of madness, pain, rage, forbidden knowledge and pride. They serve as spiritual leaders for the [[TheCorruption Tainted]] city of Magnagora, and are keen practitioners of {{Necromancy}}.
* ''VideoGame/FinalFantasyVI'': Okay, sure, the Cult of Kefka is composed of people who have had their homes and possessions reduced to dust, friends and families [[strike:slaughtered]] [[DeathFromAbove judged]] and [[JustForPun world ruined]] by [[AGodAmI K]][[OmnicidalManiac e]][[NietzscheWannabe f]][[MonsterClown ka]], and worshipping him is the only way you're allowed to keep your miserable life, so they're more ''The Church of Woobies'' than anything else, but really now; worshipping him (and being willing to go as far as to fight for him in order to escape his judgement) really isn't going to make it better.
* The Order in ''{{VideoGame/Strife}}''. They worship a malignant god, which involves blood sacrifices, mass murder, human processing and overall plenty of evil, demented stuff. Said god is [[spoiler: actually an {{Eldritch Abomination}} from outer space which operates by draining worlds of all their life-force.]]
* In ''VideoGame/ChronoTrigger'', when the Fiends worship Magus in 1000 AD. The sole thing they desire is the death of all humanity. This is coupled with OminousLatinChanting from Fiends as they march around a statue of Magus.
* The Lopto Sect of ''FireEmblemJugdral'' is a cult devoted to the dark dragon Loptous (A alternate spelling of [[NorseMythology Loki, Norse God of Evil]]), and a once-former Empire founded by a ex-Bishop named Galle who became [[FaithHeelTurn disenchanted with the divine dragons]] and [[DealWithTheDevil made a deal with Loptuous for power]] to conquer. They are rather keen on miss kidnapping of children to be used as human sacrifices to Loptous,and the tome that bears his name and was the source of Galle's power possesses the Final Boss, Prince Yurius, designed to be the dragon's vessel on Earth. All-in-all, a rather unpleaseant group.
* In ''FireEmblemAwakening'', we have [[http://fireemblem.wikia.com/wiki/Grimleal the Grimleal cult.]] [[ExPy Expies of sorts]] of the Loptous Cult, they worship the Fallen Dragon Grima and are led by the EvilSorceror Validar. [[spoiler: And the PlayerCharacter is supposed to become its leader, as the "perfect" SoulJar of Grima.]]
* In ''Franchise/MassEffect'', the Geth religion comes down to the total extinction of all organic life in the galaxy. Unfortunately, the gods they worship -- the Reapers -- are quite real... And in an expansion of the trope [[spoiler:The reaper Sovereign sees them as so inferior that it is insulted by the Geth's worship of it.]]
** The second game reveals that the vast majority of the Geth prefer a "live and let live" approach, the ones that followed Saren being seen as heretics.
** An indoctrinated Hanar combines this with InsaneTrollLogic to come to the conclusion that since Hanar worship Protheans, [[spoiler:and Protheans were turned into Collectors who now serve the Reapers,]] Hanar must worship the Reapers and aid them in their goal of total destruction.
* "Los Illuminados" from ''VideoGame/ResidentEvil4'' have a massive army of BlackCloak monks, cannibalism, institutionalized child murder, and colossal BodyHorror.
* In ''VideoGame/TheElderScrollsIVOblivion'', there's the Mythic Dawn, a cult lead by the BigBad, who, among other things, require you to offer 'red drink' to Mehrunes Dagon (the god they worship) in order to join. There's also the Dark Brotherhood, who are a combination of a Religion of Evil, a MurderInc, and {{Knight Templar}}s.
** Also, in ''VideoGame/TheElderScrollsIIIMorrowind'', there is the Dagoth Ur cult whose followers first start seeing things and then turn into semi-sentient monstrosities who can only do [[BigBad their master's]] bidding and are to be killed on sight.
** It's subverted with most Daedric cults who are pretty friendly while the God they worship has a [[BlueAndOrangeMorality different moral system]] instead of being evil.
*** However, there are some ObviouslyEvil Daedric cults such as those of Molag Bal, the [[NamesToRunAwayFromReallyFast King of Rape]], worship of whom generally involves kidnapping and torture. His rival Boethiah, on the other hand, prefers to be worshiped through nice things like betrayal. When not functioning as a BigBad, the cults of Mehrunes Dagon tend to fall into this category as well.
* In ''RomancingSaGa'' the three Dark Gods each have followers, however the religion supporting the BigBad is the Religion of Evil [[spoiler: One of the Priests of the Temple of Elore in Melvir is actually the leader of said evil religion, even going so far as to summon monsters into the town and said summoning ritual was directly under the Temple of Elore itself, even more disturbing is the sacrifices and strange deaths at the start of the game]]
* The ''VideoGame/ChzoMythos'' series of games concerns [[spoiler:The Order of Blessed Agonies, a cult whose members worship the eponymous Chzo]]. The cult has prayer books, religious texts, a symbol, a founder, and a fairly clear objective. Chzo is referred to as a "pain elemental", and appropriately, all of the order are masochists.
** You might also call them a "religion of idiots", because they ''hadn't got a clue that their objective was completely wrong.'' They were also being fooled by their "god". [[spoiler:Chzo just wanted a new prince, and the order were just a whole bunch of {{Unwitting Pawn}}s.]]
* At first glance, the Order of the Harvest Moon from the adventure game ''VideoGame/{{Harvester}}'' seems like a slightly skewed BrotherhoodOfFunnyHats. Once you've passed the final step of their initiation ritual, which involves navigating an EvilTowerOfOminousness, killing horrible monsters, and having [[NietzscheWannabe sinister and nihilistic]] conversations with really nasty people, you've discovered their true colors... and their true intentions.
* LampshadeHanging in ''StarControl II'': the Ilwrath are theocratic self-declared worshippers of Evil and Death, but if the player confronts them over this ("If your actions are judged by your society as correct, aren't you, in fact, good?") they tie themselves into a logical knot before deciding to attack the player for being annoying.
* A bit of a subversion in ''VideoGame/DeadSpace'', as the [[ChurchOfHappyology Church of Unitology]] seems like this as you go through the game, what with them wanting bring [[ArtifactOfDoom the Marker]] back to Earth and turn everyone into Necromorphs, but you'll find somewhere in the middle of play that there are Unitologists that didn't think turning into Necromorphs was all that of a great idea, but [[BigBad Mercer]] killed them. Played straight in that this really seems to be how the Church and most Unitologists are.
** The promise of a coming of angels that will touch the bodies of the dead to transform them into heavenly beings that are reborn in paradise doesn't sound so bad by itself. It's only when you realize that these "angels" are giant alien bats that will jam an arm-long spine into your skull and [[BodyHorror transform you into space zombies]], which neither bother to make a difference between belivers and non-believers, wait for your natural death, or make your death any less painfull than being torn to pieces, that one starts to doubt that path to paradise is really such a good idea.
** What really makes it ironic though, is that its "prophet" didn't start it, and in fact was opposed to it. He merely found the Black Marker and was immune to its effects, and people that were affected by it started worshiping him as a prophet. He began trying to blow the whistle on a government plot to use the Marker as a weapon. The two military officials that were in charge of the project kidnapped him and killed him with a Necromorph to martyr him in order to strengthen Unitology, which would most likely throw suspicion away from the government and quell social upheaval that Altman was causing.
** By ''VideoGame/DeadSpace3'', a radical Unitology group, the Circle, managed to catastrophically destabilize [=EarthGov=]. While [[EvilVersusEvil EarthGov was corrupt and behind much of the evil in the franchise]], the Circle's troops gun down civilians, deliberately cause Necromorph Outbreaks, and consistently cause trouble for our heroes. An in-game log shows that most of them were not aware of the Necromorphs at first, and that their leader rationalizes them not as a natural endpoint of their beliefs, but rather as a plague brought about by nonbelievers tampering in God's Domain.
** Interestingly, the first game and its associated ExpandedUniverse have a few examples of "good" Unitologists, people who are not fanatically devoted to the religion and fight back against the Necromorphs because they realize this cannot be the salvation they were promised. Later games don't feature such individuals, perhaps explained as an effect of the Markers' growing influence.
* The Nhuvisarum in the ''{{Summoner}}'' games. They enslave nations and purposely garner a ZeroPercentApprovalRating because their magical powers are fueled by human suffering.
* Every dungeon in ''VideoGame/{{Exile}}''/''VideoGame/{{Avernum}}'' will have an evil temple with skulls, bloodstains, and/or traps that unleash demons in it somewhere.
* Played straight and parodied in the ''VideoGame/{{Fable}}'' games with the Chapel of Skorm and the Temple of Shadows. The latter example involves a rather amusing parody. "On Wednesdays we drain the blood of virgin chickens. On Thursdays we anoint ourselves with said blood. Friday is poker night, of course"; and "If there's one downside to being an evil cultist, it's that we must take our tea without milk" indeed.
* ''VideoGame/DragonQuestV'' features the Order of Zugzwang, a cult that worships the BigBad. Interestingly, it counts both monsters ''and'' humans amongst its ranks.
* The Multitude in ''Videogame/{{Incursion}}'' is a, well, multitude of demon ghosts who each want you to go kill and slaughter and rape and be generally depraved in that particular ghost's name, and are willing to bribe you with power for it. Zurvash is slightly more philosophical about it, making no bones about the fact that he has no regard for civilization, ethics, or foresight, and glorying in brutality and domination.
* ''EVEOnline'':Religion of Amarr Empire approve of slavery, conquest and racial superiority. The Blood Raiders. Since their "religion" invovles vivisection with no anesthesia.... And to a lesser extent Sansa's Nation. They believe in turning people in to "true humans" by destroying the personality yet keeping intelligence and creativity intact.
* The Order of the One True Way in ''SuikodenTierkreis'' has elements those can qualify as {{Nightmare Fuel}}s. For example, early in the game, [[spoiler:none of its followers react, let alone tried to run at all, when lightning struck among the crowd ''and fried one of them to death''. All because ''their leader has predicted the lightning strike'']].
* [[SoulNomadAndTheWorldEaters The Thurists]] are very much this. ''Every'' member indulges in an EvilLaugh, even in the battle quips (ordinary units will have the laugh replace their normal grunts and cries), their "god" is World Eater Thuris, the sickest of the lot (mentally, that is - Raksha's a MagnificentBastard and Feinne is simply mindless), and they regularly purge other religions, especially the followers of Apis, who many of their members were converted from. [[spoiler:Danette is a survivor of one of these purges, which razed the town of Pulkina ten years ago.]] And if that wasn't bad enough, they have a reputation for indulging in the spread of Scarlet Iago - this may have killed [[spoiler:Shauna/Shari and]] Trish's parents 15 years ago during a vaccine panic, and if it weren't for a charitable donation by Cristophe and Levin, it could have claimed the Raide survivors under Nereid care as well. Kanan and her lot all fail to comprehend why evil religions are doomed to swift destruction - namely, [[EvilIsNotAToy that they are mere pawns for the "gods" they worship]].
* Church of the Key in ''VideoGame/{{Alundra 2}}''. They promise you happiness, they turn you into a soulless slave.
* ''LegacyOfKain'' has a few examples, but only one truly fits. While the ancient vampires worshipped the soul devouring [[EldritchAbomination Elder God]], they believed his wheel of fate was good and divine. The vampires of Kain's empire deified him after they conquered humanity, he was their creator. The priests of Avernus Cathedral(the offical religion of which is never explored in detail), however, are members of a secret cult worshipping Hash'ak'gik, a group of hylden possessing the body of a horribly mutated vampire from the future. They preformed ritual human sacrifice to their 'god', cutting the throats of their first born and throwing them into a massive pit.
** ''Soul Reaver'' also briefly features a run-in with human vampire worshippers, who seemingly kidnap humans and feed them to their masters, presumably in the hope that they will one day be converted into vampires themselves. Either way, pretty evil.
** One of the DummiedOut bits from ''Soul Reaver'' before it was gutted due to time constraits would have involved Raziel killing a human priestess in the last human settlement who was using mind control to send humans into a vampire den.
* In ''VideoGame/RiseOfTheKasai'' the titular Kasai is an evil cult who's only purpose is to gather up six marks that are branded on to people's flesh, and use them to cast a spell that will allow their GodOfEvil to enter the world and wreak havok. Said marks are often found on children, who they will kill and skin to use the magic.
* ''VideoGame/DungeonCrawl'' features several Religions of Evil, from Beogh, god of the orcs, Kikubaaqudgha, an evil demon-god of necromantic magic, Makhleb, god of chaos and violence, to Yredelemnul, an evil god of death. Xom, god of true chaos, is an interesting case, in that he isn't looking for followers quite so much as new playthings.
* In ''VideoGame/MetroidPrime 3'', the corrupted Space Pirates certainly seem to regard Dark Samus like Jesus, referring to themselves as disciples.
* The Order of the ''Franchise/SilentHill'' series worship a God that has promised to bring about the salvation of humanity and paradise on Earth. Given that their plans for helping God bring this about invariably involve physical and psychological torture and murder (''especially'' of children and childhood best friends) and that all of the Order members (with the possible exception of Claudia, who can be seen as just a WellIntentionedExtremist) encountered in the series are amoral, vicious sadists, and/or outright insane, one can be forgiven for wondering what exactly their paradise would entail.
** Interestingly, their God is frequently depicted as female, and many of the church's evangelists are women. The menfolk, such as Kaufmann or Vincent, are more interested in earthly matters and tend to mutiny.
** It's telling that the main antagonist of ''SilentHill3'', the Order priestess Claudia Wolf, who orchestrates a brutal murder and has the protagonist put through Hell, would apparently be considered one of the Order's more ''liberal'' theologians.
** Something else that makes the Order look like pure evil rather than just a ScaryAmoralReligion is that their God thrives on suffering and hatred, although Claudia reasons that a truly compassionate God must first experience the horrors of the world through a human host.
* ''VideoGame/ValkyriaChroniclesII'' has Yggdism, a cult that worships the setting's resident [[OmnicidalManiac omnicidal]] {{Eldritch Abomination}}s as gods and preaches that brutal oppression and mass slaughter of Darcsens should be a way of life. While not all that prevalent in the original, one of the main villains from the sequel is a devout follower of Yggdism.
* ''Franchise/{{Halo}}'' has an interesting example. While the religion of the Covenant didn't start out this way, thanks to the Prophets misinterpreting the sayings of the Oracle in their holy city ([[spoiler: actually a fragment of Mendicant Bias, a Forerunner AI who went nuts and joined the Flood for a while]]) and [[spoiler: their own corruption and thirst for power]], it soon turns the Covenant into an alliance of [[OmnicidalManiac omnicidal maniacs]]. Granted, they didn't think ''they'' were going to be killed as well.
** At the same time, their genocidal war against humanity was started by three Prophets who found out that humans are the true Reclaimers and not the Prophets. In order to keep the Covenant from collapsing and eliminating all evidence, they have declared humans evil and ordered their destruction. It was also a political move to put the three in power, and they become the Hierarchs [[SarcasmMode we know and love]].
* In ''VideoGame/MortalKombat'', the Brotherhood of Shadow follows the fallen Elder God Shinnok.
* The White Mantle of ''GuildWars: Prophecies'' starts out seeming like a bunch of pretty cool guys. They're a functional theocracy, wear nice outfits, welcome you into Kryta after your [[DoomedHometown homeland gets burnt to a crisp]], and induct you into their order. The only real problem is that the gods they worship are actually a race of [[BlueAndOrangeMorality amoral]] illusion-weavers who are currently harvesting the souls of specific individuals to power the seal on an entrance to the realm of a very real and very evil god. And they're not doing this because it's necessary for the greater good; they just want to make sure they themselves stay alive.
** After the destruction of most of the Mursaat race by the opening of the entrance they'd kept sealed until [[NiceJobBreakingItHero some nosy heroes showed up]], the White Mantle hired former bandits, thugs, and other detritus of society, named them Peacekeepers, and sent them out to kill anyone who didn't agree with the Mantle.
* Hinted at with the ScaryDogmaticAliens in ''VideoGame/DukeNukemII'': "We'd kill you, you see, but our religion prevents the interruption of suffering."
* The ''VideoGame/{{Civilization}} IV'' Mod ''VideoGame/FallFromHeaven'' includes the Ashen Veil religion, which explicitly seeks to bring hell itself to Erebus.
** The Illians worship the winter god Mulcarn. Their goal is to turn everything to ice again, so they can prosper. Of course, no other civilization can survive on ice. After the death of their god, their task is to turn their leader into a new winter god.
* ''Franchise/TheLegendOfZelda'' occasionally portrays [[BigBad Ganon]] as being worshiped as a god, with his more devout followers [[VideoGame/ZeldaIITheAdventureOfLink trying to]] [[VideoGame/TheLegendOfZeldaOracleGames revive him]] or [[DealWithTheDevil selling their souls to him]] [[VideoGame/TheLegendOfZeldaTwilightPrincess for power]]. The Triforce of Power, the source of his magic, ''is'' a third of the most powerful holy artifact in the series, so he does have deity-like powers.
* The Path of Dark in the old ''VideoGame/MightAndMagic'' verse is heavily implied to be either this or a ''Philosophy'' of Evil - it has adherents that self-identify as [[CardCarryingVillain Villains]], some members of it call you a do-gooder, or criticise your lack of cruelty if you happen to align with the Path of Light...
* In addition to various examples from the usual suspects among the ''TabletopGame/ForgottenRealms'' gods, ''VideoGame/NeverwinterNights2'' has people who worship the King of Shadows (the {{Pure Magic|Being}} BigBad). The second expansion adds the cult of Zehir, worshipers of the yuan-ti god of poison who have set themselves up as the rival to a ''different'' Religion of Evil, those who worship Sseth, the yuan-ti's normal patron deity.
** The first game, meanwhile, had the "People of the Eye", who were working to ressurect the [[LizardFolk Creator Race]] through such means as attempting genocide against an entire city through a MysticalPlague.
* ''VideoGame/{{Runescape}}'' originally had only three gods, Saradomin, Zamorak, and Guthix, who were good, evil, and balance. Zamorak is considered more chaotic now, and has some followers who are decent and suggest that their reputation is WrittenbytheWinners. Still, the Zamorakians are arguably 99% evil, featuring all sorts of bloody murder, their members include vampires, werewolves, demons, and [[ArsonMurderandJaywalking an Evil Chicken]], and many of their rituals actually use the word evil.
* The ''Legend of Heroes IV: A Tear of Vermillion'' has a rather complex complex backstory leading to the Religion of Evil. The leader, Bellias, was originally the next Supreme Priest of the Bardus Church before his epiphany in the Island of Kanaphia / Truth Isle, in which he turned to Octum as his god. The great irony of this Religion of Evil is that its base is ''the same city as the Bardus Cathedral'' and the portal to Octum (and base of operations) is '''right under the Cathedral'''. And just to demonstrate how evil this religion is, Bellias' second-in-command, Borgeid, is responsible for corrupting the Great Spirits and corrupting the lands. And they resort to terrorism in spreading their beliefs. Yeah, it's that evil.
* There's a few of them in the ''MightAndMagic'' series. In the first few games, there were a lot of monsters that suggested evil cults, but with no clues to any actual cults. Starting in ''VI'', they had the Cult of Baa, which worshipped the Kreegans, devil-like creatures that were the antagonists. These cultists also appeared in ''VII''.
** In ''VIII'', there were the Necromancers, but they were only enemies if you chose the Light Path. If you chose the Dark Path, they were important allies.
** In ''IX'' they had some fun with this, and it might have been okay if the game as a whole [[ObviousBeta wasn't so poorly done]]. The "evil cult" here was the Cult of the Great Honk. These guys weren't related to the main plot, and were [[IneffectualSympatheticVillain Ineffectual Sympathetic Villains]] at best. (In fact, one of the quests involving them required you to convince a group of them to leave a city ''without'' killing them. (The Great Honk wasn't even a real god, it was a giant goose that the actual gods [[FluffyTheTerrible kept as a pet.]]
* ''Videogame/DragonsDogma'' has Salvation, a cult that worships the Dragon that stole your heart as a harbinger of the endtimes and serve as TheUsualAdversaries for The Arisen. Hilariously, the Dragon doesn't care one bit about them.
[[/folder]]

[[folder:Web Comics]]
* {{MAG ISA}} -- In this comic, the cult known as [[http://mag-isa.thecomicseries.com/comics/pl/119615 The Order]] is the religion of evil.
* The Dimension of Pain demons in ''Webcomic/SluggyFreelance'' worship the Demon King, who thinks the highest compliment he can give something is "How evil".
** The same goes for the cult of K'Z'K started up by Chilus.
* The doom cultists in ''Webcomic/EightBitTheater''. And whatever Black Mage is worshipping that week. Though Black Mage admits he's only worshipping them for the express purpose of gaining their dark blessings until he is powerful enough to usurp them for his own ends. This comes back to bite him later on, when Chaos rises and he tries to get on his team. Chaos then tells him that he's planning on destroying everything, Black Mage asks if that includes him. Chaos's response? "Biiiiiiiiiiiig time". [[FaceHeelRevolvingDoor Needless to say, Black Mage immediately sees the need to kill Chaos. ]]
* Vince's cult in ''Webcomic/{{Jack|DavidHopkins}}'' is a weird example in that the cultists are all ''already'' in Hell, and are turning to the cult to try and get them out. Vince has a lot of fun manipulating them.
-->"Now each of you prove yourselves! Come to the centre of the arena and curse God's name! Denounce His only son! For only those with the courage to face God's wrath are worthy to bask in His glory!"\\
They don't even think twice. No wonder they're damned.
* In ''Webcomic/{{Homestuck}}'', the troll version of Juggalos are a legitimate religion on Alternia. They possess terrifying psychological powers known as "Chucklevoodoos" and use the blood of trolls that they slaughter as decorative paint. And the Mirthful Messiahs of the religion? They are actually the BigBad and [[TheDragon his Dragon]].
* Subverted in ''Webcomic/TheOrderOfTheStick'': Despite the deity being called "The Dark One" and despite his worshipers being almost universally evil creatures, it's not quite a Religion of Evil but rather a religion of people who are so downtrodden that they're willing to do anything to even slightly improve their lot in life, even to the point of tempting TheEndOfTheWorldAsWeKnowIt. More a religion of evil people than a Religion of Evil.
** Redcloak's brother Right-Eye eventually renounced the Dark One and the Plan because he believed the religion had become a straight example of this, with the Dark One caring more about getting revenge than about improving the lives of goblins.
* In ''{{Sinfest}}'', [[http://www.sinfest.net/archive_page.php?comicID=2539 Satan tries to build a Super Evil Devil Church]]. He manages to attract his FanBoy for a congregation.
[[/folder]]

[[folder:Web Original]]
* Subverted in the ''WhateleyUniverse'' with the Cult of Kellith, worshiping the daughter of Gothmog (and granddaughter of Shub-Niggurath)... who, for all that she's ostensibly a lust demoness, started out as a human, is currently attending Whateley Academy as a student, and is generally not a bad person. (Although there are signs that she's starting to actively distance herself from her previous human existence and morals, so this ''may'' change in the future -- she ''is'' a CosmicHorror in the making, after all.) Played straight, however, with the Tong of the Black Madonna, an apparent mystical cult opposing the Tao and making trouble for its current Handmaid a.k.a. Bladedancer, including a concerted attempt to attack her in her dreams via a spell powered by human mass sacrifice.
** The Cult of Kellith probably isn't a subversion, but a real example. The head of the cult was actively trying to turn Carmilla evil [[spoiler: until she killed him]]. Cultists have been seen to do things like sacrifice cute animals in her name. And there may be ''a hundred thousand'' of them out there doing god only knows what.
* It's parodied on [[http://www.tumblr.com tumlbr]] of all places by the user [[http://www.beyonddesolation.tumblr.com beyonddesolation]], the leader of ''Blog/TheBlackLegionOfTheDarkLordSketchMelkor'', who presents herself as [[BigBad Melkor]] from the Tolkien-verse, commonly referred to by her followers as the [[CardCarryingVillain Dark Lord Sketch]]. It's complete with [[http://beyonddesolation.tumblr.com/post/67231630826/okay-so-if-u-are-in-my-cult-i-need-u-to-get-a requests to do strange things]], and some form of [[http://beyonddesolation.tumblr.com/post/67315500472/wait-no-can-i-be-your-foreign-affairs-balrog-i-live-in organized government]].
* Worshippers of evil Earth on WebOriginal/UstalNaror islands.
[[/folder]]

[[folder:Western Animation]]
* A kind of meta-example, but on ''WesternAnimation/TheFairlyOddparents'', there was shown to be a church on Yugopotamia, complete with a priest for [[ArrangedMarriage Mark and Mandie's wedding]]. Nothing is said about it, but considering [[BadIsGoodAndGoodIsBad the nature of the Yugopotamians]], FridgeLogic gets you to realize this trope is likely in play.
* Ezekiel Rage from ''WesternAnimation/JonnyQuestTheRealAdventures'' had the Book of Rage, a supposed bible from which all apocalyptic prophecies must come to pass, and which he worships fervently. Subverted in the fact that the book was actually empty, save for a picture of his dead family.
* The villagers from Season of the Skull in ''WesternAnimation/SuperRobotMonkeyTeamHyperforceGo'' worship the Skeleton King.
* RockosModernLife: In the episode "Schnit-heads", Heffer is seduced into a sausage-worshiping cult, who also execute un-believers with bowling balls.
[[/folder]]

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