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[[caption-width-right:300:KillEmAll. No sorting necessary.]]

->''"Life... Dreams... Hope... Where do they come from? And where do they go...? Such meaningless things... I'll destroy them all!'''''''"''
-->-- '''[[VideoGame/FinalFantasyVI Kefka Palazzo]]'''

Who caused TheEndOfTheWorldAsWeKnowIt? ''This guy''. Destroying continents, wiping out civilizations, exterminating [[EarthShatteringKaboom whole planets:]] [[ApocalypseHow When this character turns up]], entire ''[[ApocalypseHow/{{Class X-3}} galaxies]]'' or ''[[ApocalypseHow/{{Class X-4}} unive]][[ApocalypseHow/{{Class X-5}} rses]]'' may die, or even ''[[ApocalypseHow/{{Class Z}} reality]]'' itself -- the Omnicidal Maniac has made his entrance and where he goes, the survival rate of everything nearby quickly drops towards zero.

Put simply, the Omnicidal Maniac is a villain whose main plan and motive is "destroy the world". He actively seeks the destruction of whatever world the setting is based in, does it as an end unto itself, has the ability to do so, and is both aware of what he's doing and fully motivated to do so. He can and he will, even if it logically means going down himself as well.

Most Omnicidal Maniacs will aim for at least Class 3 on the ApocalypseHow scale, but it may vary from setting to setting -- in a MedievalEuropeanFantasy setting, the known world may just be a kingdom or two, while in a SpaceOpera, [[SerialEscalation expect the whole known galaxy or the universe or even the Multiverse]], to be his goal. Despite the name, being completely insane is not a requirement, but having a FreudianExcuse doesn't make the Omnicidal Maniac any less of a menace.

Contrast the PersonOfMassDestruction (who doesn't ''want'' to use their powers to destroy the world), MikeNelsonDestroyerOfWorlds (who causes damage of this scale largely by accident, through ignorance, or for comedic, non-serious reasons intended to elicit laughter), and WoobieDestroyerOfWorlds (whose tragic, crapsack lives made them see red and lay the blame on all their woes upon the world). Omnicidal Maniacs are ''not'' amusing and have [[WhyYouShouldDestroyThePlanetEarth clearly-defined reasons for wanting to destroy everything nearby]], which they do with a great deal of malice.

The Omnicidal Maniac differs from the SuicidalCosmicTemperTantrum and PutThemAllOutOfMyMisery in that the Maniac has "destroy world" as motive and "I go down with it" as unfortunate side-effect (or isn't planning to go down with the world at all if they happen to have the power or means to survive the destruction they wrought), while the latter two has "I die/I am miserable" as motive and "world goes with me" as insurance.

The logical extreme of the less destructive FeelingOppressedByTheirExistence, KillAllHumans, and AbsoluteXenophobe. Compare PlanetEater, PlanetLooters and HordeOfAlienLocusts, whose world-destroying is more of a side-effect of their own desire to stay alive. Fighting against this villain (or scores of them) means EvilOnlyHasToWinOnce to destroy everything. The GenericDoomsdayVillain is this without any good reason for destroying everything, not even [[ForTheEvulz sadism]]. These types often start by destroying their own particular people/clan/culture/race first, which is GenocideFromTheInside.

The StrawNihilist, the PsychoForHire or the AGodAmI mentality are very popular amongst this character archetype.

----
!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* Anyone of importance in ''Manga/DragonBall Z'' [[EarthShatteringKaboom can blow up planets]]. However, only Majin Buu seems intent on undoing all of creation merely out of malice, spite, boredom, [[ArsonMurderAndJaywalking and inability to get ice cream]]. And that was before he got rid of his conscience.
** Cell planned on becoming one of these after the Cell Games. Once he was finished having his fun on Earth, he planned to destroy it, then travel to other planets and repeat the process. But he was killed before he could get started.
** Frieza made a business of this, wiping out all life on planets he came across so he could sell them off to the highest bidder. And there's what he did to Planet Vegeta.
** Broly blew up a galaxy, and nearly did the same to the universe just for fun.
** Majin Buu's 'Fat' form had no real aspirations of genocide, only killing because he was told to by [[TheManBehindTheMan Babidi]] and [[ObliviouslyEvil he didn't know it was wrong]]. His later forms, however, know full well that they're doing evil, and enjoy it thoroughly:
*** Super Buu lived for two things: challenging fights, and eating sweets. When told to go kill off some humans so as to give the heroes more time to train, he proceeds to launch a storm of energy blasts at the planet below that seek out and kill every last human save three (Hercule/Mr. Satan, who was immune due to his link to Buu, and Tien & Chiaotzu, who were able to dodge the blasts). Even after gaining intelligence by absorbing Piccolo and Gohan, he still goes on a destructive spree of blowing up cities for fun (after [[SweetTooth eating the entire contents of]] [[VillainousGlutton every sweets shop in it first]]), lamenting that the lack of people means he can't enjoy their screams.
*** Kid Buu is ''considerably'' more unhinged, and is pure evil. A simple-minded being, being an Omnicidal Maniac is all he knows or cares about; he blows up the Earth simply because it is there, obliterates several other planets while searching for Goku & Vegeta, and then, once everyone in the vicinity is dead, he ''breaks into the Afterlife so he can keep killing''.
* Fall, the ultimate BigBad of ''{{NORA}}'': The Last Chronicle of Devildom' was revealed to be this in the final battle by almost absorbing all of the life energy of the Demon World and the Human World [[spoiler: with the insane amount of power he had absorbed from Nora, Duece and the Dark Leige]] destroying all "defective" beings along with it. All of this out of [[spoiler: rage and betrayal towards the previous Cerberus, Diegree, after he died giving strength to the current Dark Leige without fighting Fall a final time.]] After his defeat, he repents by giving Nora his power back along with the stolen power of the Dark Leige, nearly making Nora a PersonOfMassDestruction
* [[Manga/{{Hellsing}} The Millenium's]] only motive is to cause endless war and destruction ForTheEvulz, meaning that the war they caused will end if either they get defeated or their opponent, which is humanity as a whole, gets wiped to extinction.
* Valgaav, both TheDragon and BigBad of ''[[LightNovel/{{Slayers}} Slayers TRY]]'' wanted the destruction of everything ''before'' merging with Darkstar, believing that oblivion was what the world deserved. Afterwards, the knowledge he gained about the nature of the universe drove him to become a WellIntentionedExtremist merged with Darkstar's godlike power, intending to destroy the entire world and then remake it without strife or conflict.
** In the novel canon, ''all'' Mazoku are [[NietzscheWannabe nihilistic]] Omnicidal Maniacs; in the anime this is most visible with Hellmaster Fibrizo:
---> '''Fibrizo:''' "I want to be destroyed. I want to be destroyed! Destruction? Yes... Destruction is the ultimate wish of any Monster. That's what we were created for. Isn't it? That's what we were created for! [..] But this destruction shall consume all things! It shall consume the entire world! [...] All the world! Let all the world be destroyed with me!"
** Subverted with Xelloss, who pays lip-service to the Mazoku "blow up everything" mentality but clearly enjoys life way too much for him to mean any of it. He attempts to excuse his saving the world from Duragnigdu by saying that destroying the world is his job, not Dark Star's. Riiiiight. We believe you.
*** At that time he wasn't acting for his own benefit, but working as the envoy of the entire Mazoku race, so presumably the surviving Mazoku Lords agreed on his logic there, as well. Plus he was promised that the power released from the killed Dark Star would be granted to the local Dark Lord, Ruby-Eye Shabranigadu. It's left unclear whether that bargain was held or not, but if it was, then Xelloss definitely hastened the homemade Apocalypse by getting rid of the foreign product.
**** That deal about getting some of Dark Star's energy was never intended to be fulfilled, probably by both sides - nothing shows this more than the fact that Xelloss betrayed the Overworlders shortly after the deal even got mentioned.
**** Given that most Mazoku fight damn hard to stay alive, it's entirely possible that Fibrizo was simply nuts, and paying lip-service to the cause of universal destruction is the normal attitude of "sane" Mazoku.
* Rau Le Creuset of ''[[Anime/MobileSuitGundam Mobile Suit]] GundamSEED'' isn't perhaps the most obvious, as his goals merely encompass the extinction of humanity, Natural and Coordinator alike. However, given the much smaller scale (the action never extends past Mars due to limited space travel), it's quite omnicidal in context. His motivation for this is that he believes that HumansAreBastards and have only limped along so far as they have because they have never possessed the means to wipe themselves out before now. He honestly believes that the human race as a whole deserves death, not just for his own [[CloningBlues admittedly sad life]] but for all the suffering they inflict upon others that he has seen. Given the atrocities committed by both sides in the war, and the genocidal ambitions of so many in the series, [[StrawmanHasAPoint it isn't hard to see his point]]. In the end, Le Creuset winds up one of the more terrifying examples of this character because his motivations are understandable: it is not impossible to see someone actually winding up with his worldview, rather than just wiping everything out because they're a CardCarryingVillain.
* ''SDGundamForce'' gives us the leader of the Dark Axis, General Zeong. His sole motivation is to become powerful enough to fire a beam that would wipe out all dimensions.
* ''Franchise/{{Digimon}}'' seems to have at least one per season:
** ''Anime/DigimonAdventure'' has Apocalymon. The name says it all. When he was defeated, he tried to unleash a blast that would eradicate the human world and the Digital World.
** ''Anime/DigimonAdventure02:'' BigBad ([[DiscOneFinalBoss or so we think at the time]]) Arukenimon's main plan is to destroy the [[CosmicKeystone Cosmic Keystones]] that maintain the barriers between dimensions, which would cause all dimensions to collide, destroying the multiverse. Her intended [[TheDragon Dragon]] refuses to help on the grounds that she's an unworthy mistress, but eventually decides, for his own reasons, to do the same, making him just as much of an Omnicidal Maniac.
** ''Anime/DigimonTamers'' features a non-Digimon AI that was designed to prevent other programs from exceeding their boundaries ('cause AIIsACrapshoot) by deleting them if they surpassed a certain stage of development. It decides all humans and Digimon meet criteria for deletion. Then it gets ''[[EldritchAbomination really]]'' [[TheHeartless nasty]].
** ''[[Anime/DigimonFrontier Digimon Frontier's]]'' Lucemon is more of a digital EvilutionaryBiologist. The data that makes up Digital World's matter (and population) is easily manipulated, and it ''all'' had to be absorbed and used to release him [[SealedEvilInACan from the Dark Area.]] He planned to use it to rebuild the world as he saw fit.
** ''Anime/DigimonSavers'', aka ''Digimon Data Squad,'' has Yggdrasil/King Drasil, the computer that runs the Digital World. When the previous arc's [[BigBad Big Bag's]] plan backfires and both worlds are going to collide, he decides that the human world must go. When the Digimon fight against him and his minions to protect it, guess what he ''then'' decides? He, too, plans on restarting the Digital World after destroying the old one.
** ''Anime/DigimonXrosWars'' has Bagramon, who wants to remake both worlds in his image.
* The [[BigBad Millennium Earl]] in ''Manga/DGrayMan'' is very open about this, explicitly taunting the hero in his first real appearance.
-->'''The Millennium Earl:''' "You have only witnessed the opening chapter... the akuma in this world will continue to evolve. Now begins the journey leading up to the true tragic end. I am the Millennium Earl, the maker of the akuma. I shall obliterate your puny "God" and lead the world to its death with my akuma. An exorcist, a soldier of life. You can't save this world no matter how hard you try."
* [[EnemyWithout The berserked defense program]] of the Book of Darkness in ''MagicalGirlLyricalNanoha''. Its existence is as thus: Appear when [[TomeOfEldritchLore Book of Darkness]] fills all [[NumberOfTheBeast 666 pages]], [[TheEndOfTheWorldAsWeKnowIt destroy every world and dimension in its path]], get temporarily killed either from a really powerful weapon or from having burned out its considerable amount of magic, [[BackFromTheDead rejuvenate with Book of Darkness somewhere else]], repeat.
** The Eclipse virus in [[MagicalRecordLyricalNanohaForce Force]] turns a large number of its victims into a mix of this and extreme {{Jerkass}} for some reason, dying horribly if they either cease killing or don't have some sort of medical care keeping it at bay.
* ''Anime/SailorMoon'' has several, Queen Metaria the BigBad of the Classic season, Wiseman/Death Phantom the BigBad of the R season, the entire Death Busters organization of the S season and Sailor Galaxia of the Stars season. Sailor Galaxia, in particular, is notable for omniciding at least a half-dozen, and probably much more, habitable planets, before coming to Earth - by the GrandFinale she wipes out all life in the Milky Way galaxy in both the [[Manga/SailorMoon manga]] and the first anime. Chaos, who directly controls her and is hinted (or outright stated in the manga) to be the UltimateEvil behind the rest of them, is one too.
** Manga!Prince Dimande became one of these after he was forced to kill his brother and TheReveal of the BigBad's true identity, going so far as to steal the Sliver Crystals in order to cause the destruction of reality itself. It took Sailor Pluto's sacrifice to stop him.
* Ralph Werec in ''SoukouNoStrain'' went back in time via SubspaceOrHyperspace and saw the [[PoweredByAForsakenChild cost]] of the research that went into the BlackBox that powered the series' HumongousMecha. His sanity didn't make it out intact, and he decides to destroy his entire race in retaliation, never mind that nobody knows anything about it.
* ''FutariWaPrettyCureSplashStar'' gives us [[spoiler: Gooyan, the NotSoHarmlessVillain ManBehindTheMan.]]
** Many ''PrettyCure'' [[BigBad Big Bads]] were omnicidal maniacs. The Dark King in the original series and Max Heart started the trend by trying to destroy the Universe because it was in his nature; Lord Akudaikahn in Splash Star was his {{Expy}}; Dune in Heartcatch was defined by his hatred of everything.
** The Director of Eternal in ''YesPrettyCure5 Go!Go!'' is this for worlds he considered to have no value. If a world has a value, he'll drain them of every of its values, that is, treasures. Once they ran out of it, he'll first turn everything of that world into stone, before blowing them up to kingdom come.
* ''Manga/AhMyGoddess'', of all series, had one. The Lord of Terror aka The Ultimate Destruction Program, a bodiless entity whose one goal is to destroy the universe and recreate it in its own twisted image. Given the highly idealistic nature of the series, it failed (though it was a close call) and was [[spoiler: KilledOffForReal when it was tricked into possessing a floppy disk which Skuld erased using a magnet]].
* In ''Manga/MahouSenseiNegima'', the Mage of Beginnings and his minions, [[spoiler:the three incarnations of Averruncus]], want to destroy Magicus Mundus (a pocket dimension planet the size of and dimensionally anchored to [[spoiler:Mars]]). [[spoiler:It's ultimately subverted, as Mundus Magicus is collapsing on its own, and the BigBad thinks that the only way to save everyone is to move all the inhabitants into a LotusEaterMachine.]]
* Yami Malik of ''Manga/YuGiOh'' explicitly states in the manga that all he wants is total destruction of everyone and everything.
** Then there's Zorc.
* Clear Note, the final BigBad of ''GashBell'' manga, intends to become the new King of Demons solely so that he can use the associated privilege of erasing from existence any demons he doesn't like, to erase everyone indiscriminately. His reasons boil down to existing only to kill other demons and wanting to do it in the most efficient way. [[PersonOfMassDestruction He also nearly makes the Earth uninhabitable with his ultimate spell.]]
* ''TheLuciferAndBiscuitHammer'' has BigBad The Mage, who is poised to destroy the Earth by hitting it with [[ExactlyWhatItSaysOnTheTin a giant Biscuit Hammer]]. His eventual StartOfDarkness reveals that he's done this a ''lot'': [[spoiler:Being from the future, he has continually travelled backwards in time and destroyed the Earth at every point in time it existed from the point he gained his powers until now. If the protagonists don't stop him he intends to keep on doing this until the Earth no longer exists at any point in time... Simply because he ''can''.]]
** The protagonists, on the other hand, are led by a WoobieDestroyerOfWorlds who intends to destroy the Earth herself if she defeats the Mage -- [[spoiler:she's suffering from a SoapOperaDisease and doesn't want the Earth to go on without her.]] [[FailureIsTheOnlyOption The Earth just can't catch a break in this series, can it?]]
* In ''{{Noein}}'', [[spoiler: Noein's goal is to absorb all possible futures into his own reality, then end the entire universe.]]
* King Zenoheld from ''{{Bakugan}}'' eventually decided to do this after undergoing a ''major'' VillainousBreakdown, deciding to destroy the entire universe.
** Mag Mel entered the picture with this in mind. His ultimate plan is to destroy the Earth in such a way as to set off a chain reaction to destroy the entire universe.
* Dewey Novak in ''EurekaSeven'' tries to do this by making the Scub Coral exceed to Limit of Questions (the in-universe theory that only a certain amount of intelligent life can exist in a given space, exceeding this limit causes the collapse of the universe)
* [[spoiler:The second]] Friend in ''TwentiethCenturyBoys'' is this. [[spoiler: While the first one]] was comitting genocide with a killer virus for several reasons, he really wanted to be ruler of the world and be worshipped by his circle of "Friends" ([[spoiler:all to satisfy his craving for attention and hatred for Kenji]]). [[spoiler:The second one, however]], flat out intends to wipe out all of humanity. Despite pretending to [[spoiler:be Fukubei (The first one)]], he really doesn't care one bit about his ideals and doesn't even intend to save those who ''do'' support him. He truly wants to destroy the world and his last trap is an Anti-Proton Bomb.
* Folken in the movie version of ''{{Escaflowne}}'' wants to destroy all of Gaea -- because he's just so depressed and just wants it all to end, even though he presents himself as a SocialDarwinist to his followers.
* ''Manga/{{Monster}}'' has a more realistic version of this in Johan Liebert, while his motives are left somewhat vague, his actions certainly suggest that his ultimate goal is the complete destruction of human society by manipulating everyone he comes across into killing themselves or each other.
* In ''Anime/PuellaMagiMadokaMagica'', [[spoiler:after several timelines of amplified power, ''our cute protagonist'' becomes this in her Witch form, Kriemhild Gretchen. She wants to make everyone happy, but thinks the only way to achieve that is by killing them all.]]
* In ''Manga/RikiOh'', [[BiggerBad Mukai]] wants to wipe out the human race because he thinks that is the only way to end their suffering.
[[/folder]]

[[folder:Comics]]
* Imperiex of the {{DCU}}, a hive minded mechanical entity, saw its purpose as being the "hollowing" of the universe, destroying the flawed creation and remaking it in a new Big Bang. Ironically, [[spoiler: the flaw it detected in the universe was itself, and a massive cooperative effort managed to throw him into the past where he in fact became the Big Bang in the first place, via a StableTimeLoop, a fact which Imperiex realizes the moment before it dies]].
* DC Comics' [[CrisisCrossover crisis crossovers]] have the following:
** ''CrisisOnInfiniteEarths'': Anti-Monitor, whose stated goal is to rule an Anti-Matter universe after all other universes have been destroyed and he has absorbed the energy from their destruction
** ''ZeroHour'': Parallax (Hal Jordan, though the circumstances of it was changed during ''Green Lantern: Rebirth'') and Extant
** ''InfiniteCrisis'': Alexander Luthor and Superboy-Prime
** ''FinalCrisis'': {{Darkseid}} and Mandrakk
** ''BlackestNight'': Nekron
* SpiderMan's ArchEnemy Dr. Octopus became this during the "ComicBook/{{Ends of the Earth}}" storyline. Knowing he was dying, his plan was to use powerful satellite weapons to kill 99% percent of the population of the Earth so that the remaining 1% and all of their descendents would remember him forever. He nearly succeeded. However, just as he was about to pull the switch, Spider-Man pointed out a flaw in his plan: the incredible heat caused by the weapons would leave all the survivors brain-dead. This revelation caused Octopus to hesitate long enough for the hero to pummel him into unconsciousness.
* While he does not typically fall under this category, SelfDemonstrating/TheJoker did, in fact, reach this state during the "ComicBook/EmperorJoker" plotline in the ''{{Superman}}'' comics. In fact, considering that plot and a number of other situations it could be argued that the only things preventing the Joker from permanently attaining this state are a lack of superpowers and his obsession with Batman.
* {{Thanos}} is the most famous MarvelComics example. He has a vision of [[TheGrimReaper Death]] as a beautiful woman and in order to win her favor he embarks on a quest to wreak death and destruction. Although he ''has'' stated on multiple occasions that the elimination of ''all'' life might destroy Death as well as it would eliminate her need to exist, so he would eliminate ''half'' of all life, thus ensuring Death still has a steady supply of souls.
** In ''TheThanosImperative'' Thanos goes completely insane when he realizes that [[spoiler:his ThanatosGambit to destroy the Cancer Verse also rendered him immortal, meaning he can never be with Death.]] He makes an earnest effort to wipe out all life in the Marvel-616 Verse [[spoiler:and has to be sealed in what's left of the Cancer Verse to stop him from pulling it off.]]
* On a more planetary scale, {{Onslaught}} started out as a [[KillAllHumans mutant supremacist]] of the same stripe as his psychic 'father', Magneto. After seeing the Age of Apocalypse in Bishop's memories, in which mutants really did rule the world and destroyed it, he decided [[KillEmAll no one was worthy]].
* Abraxas also hails from the MarvelUniverse. The antithesis of Eternity, it exists only to destroy anything and everything in all creation. Keeping it imprisoned is one of the reasons {{Galactus}} needs the life energy from devoured worlds. The one time Abraxas ''did'' break free it...wasn't pretty.
** Put it simply, [[GodzillaThreshold it is measurably preferable]] to have [[PlanetEater Galactus]] around than it is Abraxas. And, in case you need reminding, Galactus is apocalyptic himself.
* Annihilus, also from the MarvelUniverse, became one of these during the ''ComicBook/{{Annihilation}}''. His vast fleets carved a path of devastation across the galaxy, used a large, tick-like weapon called the Harvester of Sorrows to drain entire planets of their energy to ''feed'' on, nearly wiped out the Kree and Skrull empires, and (with the help of Thanos and two cosmic superbeings) imprisoned ''Galactus himself''. Why is he an Omnicidal Maniac instead of just another alien conqueror? Annihilus' true motivation for capturing Galactus was to [[spoiler: turn him into a ''bomb''. A bomb that would kill ''everything in the universe except for himself'']]. What's truly scary is that he came damn close to pulling it off too.
** Annihilus was always one of these. In fact, he may have the craziest motivation of any character on this page: He has an irrational fear of death, so he got himself the Cosmic Control Rod, which, among its other powers, ensures that he will never age and never get sick. But...he could still die, if someone or something kills him. His solution? Kill ''every living thing'' in the multiverse...so they can't kill him first. This was just the first time he was in a position to act on his omnicidal desires on such a large scale. [[spoiler:It doesn't work out so well for Annihilus, since the final battle ends with Nova ''sticking his hand down Annihilus' throat and ripping his guts out''.]]
* All of the Elders of the Universe of Marvel Comics came up with a purpose to keep from going mad from their immortality, but one of them, the Obliterator, was clearly insane from the start. After murdering his entire species, he wandered the universe looking for things to kill, using his powerful high-tech weapons to shoot at anything that moved. (Except the other Elders, the only beings who come close to being his allies.) Fortunately for the universe at large, he has no real confirmed super-powers other than the immortality that all the Elders have (possibly making him the least powerful of the group) and is also not very smart.
* Amatsu-Mikaboshi from the ComicBook/ChaosWar CrisisCrossover is also this. He existed long before the universe did and, in the Chaos War, wants to return things to that state. Marvel sure is in love with this trope.
* Jenny Fractal from the ''Wildstorm'' universe. She is the twin sister of TheAuthority's Jenny Quantum, kidnapped at birth by the Chinese government. [[TykeBomb She was put in an assassin program]] where she was [[BeingTorturedMakesYouEvil forced to watch humanity's evil deeds: rape, murder, genocide, etc]]... She has the power to fracture/alter reality and wants to use the Earth as the center of a black hole to implode and collapse the entire multiverse. Her reasons for doing this: "It's the only way to save them".
** Winter of ''{{Stormwatch}}'' (also from the ''Wildstorm'' universe) becomes this after he flew an Franchise/{{Alien}}-infested Skywatch space station into the sun to save the world. Being an energy absorber, Winter became one with the sun. Trapped by eternal agony he lures out TheAuthority so they can finally put an end to his life; when it's deemed impossible to kill him without destroying the sun and ending the world, he became enraged. Disgusted by humanity's cruelty, he yells "Your world does not deserve to live" and lashes out. [[spoiler:He's eventually stopped by using the Carrier's technology to seal baby universes and was condemned to burn for billions of years. Later on he's released by the new Doctor and revived in his previous normal state. In the latest ''Stormwatch'' issues it was revealed he still holds some of the sun's power.]]
** "The Man Without Hope"(MWH) from the Wildstorm Universe. He comes from the future and with his superior technology he's a match for TheAuthority. The future is grim, blank and full of suffering and he wants to prevent it from happening by ending existence all together. Swift receives knowledge from the mythical "gods" about the dark future and how to prevent it. She mentions how the MWH with all his technology couldn't figure out the problem and fix it. The MWH commits suicide when his plan is ruined by The Authority and a new unknown time line is birthed yet he is still convinced that everyone is screwed. The issue ends with the words "beginning of the end" hinting that the MWH was probably talking about human nature being the problem seeing it's the central theme of the graphic novel, "human on the inside".
* One of the [[MultipleChoicePast four possible backstories]] for ComicBook/ThePhantomStranger given in his issue of "Secret Origins" features a mad scientist from the future who wants to time travel back to the Big Bang and prevent it from effectively occurring. So not only does he want to destroy the universe, he wants to make sure it ''never even existed in the first place.''
* The [[EvilCounterpart Dark Judges]] of ''JudgeDredd'' have a philosophy that boils down to this. Undead psychopaths devoted to Law, they figure that since only the living commit crimes, life itself should be made a crime that is punishable by death. They slaughtered the entire population of their world, then found themselves stuck, as they hadn't any form of space travel, making them come off more as KillAllHumans in practice.
* Ujo Dasa is a dark sorcerer from the Frazettaverse. He planned to free the Oblivion God "Mirahan" by sacrificing a half-breed human/demon and begin the end of everything. When confronted by his former teacher Dreovid, he says it's better to have "cool darkness than searing light".[[spoiler: In the end it was revealed that Ujo was the half-breed and son of Mirahan. The Oblivion God swapped his throne of netherhell with Ujo and we watch him rest in peace.]]
* John "Grimjack" Gaunt walks away from Heaven [[SenselessSacrifice to save his friends]]. The consequences were that he was denied any afterlife and was [[WhoWantsToLiveForever doomed to be reborn remembering his memories for all eternity]]. His soul was bound to the pan dimensional city known as Cynosure. Cynosure was build to harvest the energies of the multiverse to an entombed supreme being called [[TheMaker Dis]] (firstborn of the multiverse) until it was ready to repeat the birthing process in an unending cycle. [[FutureMeScaresMe Grimjack's latest incarnation]] travels back in time to warn himself of the doom and to [[DeathSeeker break it]] he has to end the multiverse by destroying Cynosure.[[spoiler: Future Grimjack succeeds in manipulating present John in freeing the Supreme being from his sleep.]] In Grimjack's second incarnation we see the Supreme being walking around in mortal form giving the demons the chance to end his life and let the multiverse die in entropy. They fail. A huge hint that the multiverse might end up destroyed can be seen in Grimjack's supposedly real father, his [[LukeIMightBeYourFather uncle Jack]]. He is a Fey and can look into the future. He describes to a young grimjack the complete dissolution of the multiverse, saying there will be "nothing" after that and also that Grimjack's death would be the most interesting of all. We never see if future Grimjack succeeds because the series ended with the death of the second incarnation.
** The demons created to build Cynosure prefer entropy. They did not see the point of constant rebirths so they betrayed their maker.
* The Cult Of The Unwritten Book from ''Comicbook/DoomPatrol'' seek to summon [[NamesToRunAwayFromReallyFast The Anti-God]] and reverse creation by "reading" [[MacGuffinGuy The Word Made Flesh]].
** In a very different way, The Candlemaker also qualifies.
* Doomsday from the {{DCU}}. The name says it all. He's also one of the most primitive examples, he's little more than a frightened but sadistic alien man-child who wants to kill everything that might be a threat to him. And he thinks ''everything'' is a threat.
* Maelstrom from the Marvel universe. He's the champion of Oblivion and constantly schemes to destroy everything.
* Amodeus Q. Termineus from the Marvel universe sought the shattered fragments of the Nexus of all Realities. With them in possession he could destroy the Multiverse.
* The Cult of Entropy seeks to speed up the destruction of the Marvel Universe/Multiverse.
* According to [[DependingOnTheWriter some versions]] of the character (particularly the [[Comicbook/ThePunisherMAX MAX universe]]), if Comicbook/ThePunisher were given enough time and ammo he would kill every person on Earth.
-->'''The Punisher''': The [[HumansAreBastards human race.]] [[TheEndOfTheWorldAsWeKnowIt You've seen where that leads to.]]
* The ''[[Comicbook/ArchieComicsSonicTheHedgehog Sonic the Hedgehog]]'' comics have Dr. Finitevus, who firmly believes that the world is corrupt and needs to be "purified in emerald fire". That's the reason he [[ManipulativeBastard manipulated]] Knuckles into becoming the new [[PhysicalGod Enerjak]], knowing that the power would drive him crazy and lead to him going on a rampage. He hasn't tried anything major since, but he's still convinced of the righteousness of his actions and will probably try again.
** Then, Dr. Eggman, at the end of ''ComicBook/SonicTheHedgehogMegaManWorldsCollide'' did this ''accidentally.''
* In SonicTheComic destroying the world appeared to be the entire motivation of Knuckles' arch-enemy, the evil echidna [[MadScientist Dr. Zachary]]. When he first appeared, he boasted of his plans to locate and destroy the other echidnas ''after'' he had destroyed Mobius as a warm up, and [[CardCarryingVillain quite happily acknowledges]] the fact that [[AxCrazy he's evil]], and in SonicTheComicOnline he manipulated [[AntiVillain Shadow the Hedgehog]] into destroying the Special Zone, and almost did the same to Mobius if it weren't for Sonic [[DealWithTheDevil asking for help from the Drakon Empire]].
** The only character who manages to be even ''more'' omnicidal than Zachary is Sonic's SuperpoweredEvilSide, Super Sonic, who had no real plan beyond destroying whatever was at hand when Sonic transformed.
** After a VillainousBreakdown Dr. Robotnik gives up trying to rule Mobius and tries to destroy it outright.
** In SonicTheComicOnline there is also the God of Death Vichama.
* The light-hearted nature of ''[[ComicBook/{{Shazam}} Captain Marvel]]'' can distract you from Sivana being this in one story. Because Captain Marvel prevents his plan to take over the Rock of Eternity so he can take over the Universe, Sivana tries to activate a Proton Bomb to destroy the Rock of Eternity, which is the Keystone of the Universe and will cause its destruction, even killing himself, deciding if he can't rule the Universe [[IfICantHaveYou he'll wreck it]]. He is even laughing at this as he wants one last laugh. [[http://digitalcomicmuseum.com/preview/index.php?did=16428&page=33 Just look at his reaction]]
* The [[NietzscheWannabe Mad Angel Apolyon]] from the Chaos!Multiverse stole secret knowledge from God and uncovered the truth that [[GoMadFromTheRevelation nothing really matters]]. Lucifer fearing this truth imprisoned and [[BeingTorturedMakesYouEvil tortured]] Apolyon for a thousand years. After he was released God confided in him that for Heaven to exist, there must be a Hell. Apolyon betrays God and wants to destroy all of creation beginning with Hell. Without its counterpart, Heaven will fall and in turn so will God. In the end as Apolyon said, there will be nothing!
* Talita from Terror,Inc was trapped between [[FateWorseThanDeath life and death]] in [[TheNothingAfterDeath a void of blackness]] for 800 years. She went completely mad and came to love the Void. After she was resurrected she feared her commitment to the Void: ''"I feel...a strength coursing through me...yes...yes..I worried i might lose faith as the pain left me. I feel joy,strength,lust all raging through me...ALL PALE BEFORE THE EMPTINESS".'' Before she ends the world she wants to taste life followed by [[CessationOfExistence nothing]].
** [[HarbingerOfImpendingDoom Aban]], a [[PlagueMaster plague carrying immortal young boy]] wants to [[WhoWantsToLiveForever die]] but can't so in his frustration he wants to [[SuicidalCosmicTemperTantrum end the world]] hoping it would kill him. He refers to himself as a [[StrawNihilist true nihilist]] and [[ForTheEvulz enjoys killing]].
* The [[SinisterMinister Reverend Jeremiah Hatch]] from the {{DCU}}. A brilliant student but [[TheMentallyDisturbed mentally unstable]] he was dismissed from seminary and flunked out. He went to Vietnam pretending to be a chaplain. The ugliness of the war he witnessed [[GoMadFromTheRevelation broke him]] and he started hearing a [[HearingVoices malicious voice]]. Jeremiah realized that life is a nightmare from which there is no awakening and he threw away his cross followed by butchering both allies and enemies alike. His new mission is to serve the Almighty by serving his enemy:''"To hasten the corruption,to nurture the foulness until the Almighty has no choice but to rain down fire and brimstone and end the ugliness,the pain, the suffering".'' His [[CorruptPolitician corruption of the Mayor of Hub City]] was to get him into the [[PresidentEvil White House]] and start a [[WorldWarIII War]].
* The Ogdru Jahad from {{Hellboy}} want to burn the Earth to a cinder
* Comicbook/{{Lucifer}}: Fenris the Wolf is Destruction personified (and likely an aspect of Destruction of the Endless). His goal is to destroy Creation by attacking the seat of God in Heaven. Lucifer stands in his way.
** Fenris is assisted in his endaveour to end all of creation by the gods [[TheTrickster Abonsam]] and Bet Jo'gie. Abonsam infused with the essence of Fenris willingly gave his life to perform his greatest trick and ultimately dooming [[WorldTree Yggdrasil]]. Bet fails in her attempt to seduce [[AxCrazy Charlie]] and dies by his hands.
** The [[SapientShip Barrowjane]] Conspirators to destroy Creation,dethrone God and punish him included [[WomanScorned Lilith]], [[FallenAngel Sandalphon]], [[DimensionalTraveler The Silk Man]] and [[PrimordialChaos Berim from the Jin En Mok]]. All had their own reasons for participating: Lilith wanted vengeance against God and Heaven for casting her out of Eden, Sandalphon wins the victory that was denied to Lucifer, The Silk Man wants his own universe and when creation ends the Jin En Mok will finally be reborn as themselves.
* [[TheArchmage Master Darque]] from the new Valiant Universe. After destroying countless worlds he is coming for Earth. He wants to use the souls in Deadside to break down the barriers between worlds and kill every living being. Using all the souls to become a [[AGodAmI God]]: "''Every creature on this world raises its head against a background of infinite carnage and smiles at the sun and declares the world good. We are all monsters. Because the Universe we live in is monstrous. But we are blind to it. We do not see the endless horror that underpins our lives. Because [[GodIsEvil God is a sadist]]. The perversity of this reality is undeniable proof of both his existence and his malice. And it is our duty to become his superior. I will find him. I will challenge him. I will free us. I will make him pay for what he has done. I will break the wheel. I will end all suffering. And you would stop this?''". Darque only wants Godhood so he can erase all of existence and bring blessed Oblivion to everything, himself included.
** Deadside in the old Valiant Universe was a terrible place where all souls eventually come no matter how they lived be it good or evil.There is no Heaven nor Hell. Billions upon billions of souls trapped for all eternity [[AndIMustScream screaming in madness]]. In the new Valiant Universe it seems to be toned down a bit but it's still a terrible place where lost souls find no peace. Darque also comments on the nature of souls and its curse: "''Even the smallest of them. There is something in all of use that persists beyond death. You would call this a soul. The essence of a thing that is indestructible. Something that survives. Something that fears. Something that suffers. This is cruelty. This is madness. To know that your suffering will never end. Because that is the point of the soul. Suffering without limit. Without Surcease.''"
* [[AnthropomorphicPersonification Pain]], the servant of [[AnthropomorphicPersonification Desire]] schemed to end the world/reality/time by manipulating [[MessianicArchetype Adam Case]]. He was not alone as he was backed by a group of mythological powers:
** [[MotherNature Coatlicue]], the Aztec earth mother goddess suffers immensely because of the pollution of the earth. The only way to stop the poison coursing through her veins is to destroy the world and she would gladly give her life for that purpose.
** [[JerkassGods Tezcatlipoca]], the Aztec god of night and confusion,betrayal,divination,etc...grew tired of life and decided to team up with [[AnthropomorphicPersonification Pain]] to obtain his one way to ticket to that [[CessationOfExistence "permanent vacation"]]. He changes his mind at the end of the series when he has found fun in screwing with people on [[ForTheEvulz "a personal level"]]. His lover "Leatherette" follows suit and betrays [[AnthropomorphicPersonification Pain]] .
** Leatherette, a demon who works directly under [[AnthropomorphicPersonification Pain]] and shares Tezcatlipoca's reason for ending the world. The two eventually find purpose in [[ForTheEvulz raising hell on earth]] and betray [[AnthropomorphicPersonification Pain]].
** Tantalus was cursed by having immense desire and never be able to fulfill it. He was betrayed at the last battle and found momentary peace at the hands of [[PlagueMaster Enna]] when he shot him up with heroin.
** Enna, an old Babylonian [[PlagueMaster Plague God]] has adapted to the modern times and delivers plagues of pharmecuetical origin like heroin. Only when he has dipped into his own pharmacuetical supply does he refuse to help [[AnthropomorphicPersonification Pain]] end time. His new plan is to destroy [[AnthropomorphicPersonification Pain]] but is stopped by [[AnthropomorphicPersonification Desire]] herself.
** [[JapaneseSpirit Yuki-Onna]] and [[PhysicalGod Hephaestus]].
[[/folder]]

[[folder:Fan Fiction]]
* [[FanFic/DungeonKeeperAmi Crowned Death]]'s cult revolves around decrying 'the blight that is life' and celebrateing 'the beauty of death, the end of existence'. Mukrezar, upon his resurrection, notes tongue-in-cheek that Crowned Death's followers continue to spread that very message... even after death. Mukrezar himself probably qualifies, though his antics seem to be more motivated by ItAmusedMe than any desire for destruction itself.
* There's [[spoiler:the S'Muz]] from ''Fanfic/TimeLordsAndTerror'', an EldritchAbomination that desires to consume all the life energy in not only the universe, but the ''multiverse''.
* In [[http://www.fanfiction.net/s/2846526/1/Sonic_X_Combine_Wars Sonic X: Combine Wars]], the final story in a series by [[http://www.fanfiction.net/u/478240/Kojiokida2 Kojiokida2]], [[spoiler:Mephiles]] turns out to be trying to destroy all of existence.
* [[spoiler:[[EldritchAbomination Entropy]]]] from the ''FanFic/PonyPOVSeries'' is one, but an interesting version. [[spoiler:She's not actually evil, at least that's not ''why'' she does it. She's ''literally'' the AnthropomorphicPersonification of the end of the universe, and a natural force of the universe. It's pretty much her ''job'' to be an Omnicidal Maniac.]]
** We eventually see the rise of another one in the [[BadFuture Dark World]]. [[spoiler: [[PsychopathicManchild Fluttercruel]], upon witnessing Rancor betraying Discord--mortally wounding him to steal Destruction's power--suffers a VillainousBreakdown; unwilling to believe her aunt would betray family, she blames everything on the heroes. She then absorbs the Shadows of Existence, [[OneWingedAngel turns into a full Draconequus]], and says she's going to kill them and ''everything else'' until she and her father are all that's left.]]
** [[spoiler: Nightmare [[IHaveManyNames Eclipse/Paradox]]]], also in Dark World, is one of these ''incidentally'' to her plans. [[spoiler: She's so obsessed with [[HeWhoFightsMonsters punishing Discord]] that she's trapped him in a GroundhogDayLoop; every time the loop is restarted, that version of Dark World is erased, condemning its inhabitants to Entropy's realm.]] And she [[MoralMyopia doesn't care at all]].
* ''FanFic/InnerDemons'': [[spoiler: When [[BigBad Twilight]] [[FaceHeelTurn Sparkle]] hits her VillainousBreakdown as a result of watching [[TheDragon Trixie]] die in front of her and subsequently [[OneWingedAngel transforms into an Alicorn]], she declares that if she can't be Equestria's ruler, she'll be its destroyer, before setting out to release the [[LegionsOfHell hordes of Tartarus]].]]
* Red Cyclone in ''Fanfic/AceCombatTheEquestrianWar'' sees ponies as weaklings and wouldn't like to think of them as anything other than an extinct race. In chapter 19, he goes as far as [[spoiler: trying to detonate a burst missile above Fortress Intimidation, which would inevitably catch other griffins in its explosions]]. When Zeakros informs him of that, what is his response?
--> '''Red Cyclone''': Like I care. So what if a few griffins need to be sacrificed? If it will mean the destruction of those pathetic ponies, then I’ll take that chance! Besides, they’re nothing but expendable pawns to me. [[WeHaveReserves I can replace them easily]].
* [[spoiler:[[JurassicPark Peter Ludlow]], the ''real'' BigBad]] of ''FanFic/RiseOfTheGaleforces'', [[spoiler: intends to destroy ALL non-human life [[FridgeLogic (somehow)]], and probably doom the entire human race in the process. Why? [[DisproportionateRetribution Because he lost his family in a plane crash caused by a bird flying into the engine.]]]]
* ''[[Fanfic/AFutureOfFriendshipAHistoryOfHate A Future of Friendship, A History of Hate]]'': Back at the dawn of time, the other [[BenevolentPrecursors Sentiox]] were sickened by [[BigBad Ruinate]] intentionally making Equestria a CrapsackWorld, so took control of it away from him and gave it to his sister [[BigGood Amity]]. This caused him to destroy several of their worlds to spite them... at which point he discovered he ''liked'' destroying worlds. At that point, he decided to destroy ''everything'', which is what eventually led to him being [[SealedEvilInACan sealed away]]. Now that he's free, he's planning on picking up where he left off as soon as he's done returning Equestria to the way it was under his initial rule.
[[/folder]]

[[folder:Films -- Animated]]
* Implied to be the case with the lich tyrant the Horned King from ''Disney/TheBlackCauldron''. His goal: raise an undead army to conquer and enslave the world. He sacrifices his living servants to the Cauldron Born and triumphantly boasts that "our" time has finally come when he raises them, meaning he wants to rule as a god-king over the dead.
* In ''WesternAnimation/FernGullyTheLastRainforest'', Hexxus wants to destroy the rainforest and kill off all the Earth's creatures by turning it into an [[PollutedWasteland uninhabitable toxic wasteland]]. He's the [[MadeOfEvil primordial embodiment of destruction and pollution]], so it's literally his purpose for existing in the first place.
[[/folder]]

[[folder:Films -- Live-Action]]
* In the ''Franchise/{{Godzilla}}'' franchise's Showa continuity and the ''Film/RebirthOfMothra'' trilogy, [[HeroKiller King]] [[ArchEnemy Ghidorah]] makes a living flying around the universe looking for inhabited planets he can wipe clean of life ForTheEvulz. His crimes include the near-total extermination of Venus's population (Mars's in the English dub) in the former continuity, and [[PhlebotinumKilledTheDinosaurs the Cretaceous extinction event]] in the latter. ''Film/RebirthOfMothra3'' further justifies this with the revelation that he also sucks the life force out of a portion of his victims in the process - in this case, [[WouldHurtAChild human children]].
* In ''Film/{{Dogma}}'', the fallen angel Azrael tries to [[SuicidalCosmicTemperTantrum engineer the destruction of reality, because he figures non-existence will beat eternity in hell]]. By the end of the film, Bartleby figures out Azrael's plan, but decides to go along with it anyway in order to get revenge on God and humanity.
* (Agent) Smith from ''Franchise/TheMatrix'' film series, born of his sheer hatred for his existence. The [[Film/TheMatrix original film]] reveals that Smith hates the Matrix at least as much as he hates humans, and that he also hates the Matrix just as much as the Redpills hate it, so it is very likely that he had plans during even the original film to eliminate the Matrix, and Neo defeating him only gave him the capability to act upon this desire. In the sequels, Smith, corrupted into a virus after his first fight with Neo, has gone rogue and now considers both the machines and humans as equally flawed and deserving of extinction. Whereas he originally just wanted to destroy Zion, his new goal is to infect and destroy everything, which would also destroy him.
* Although the Earth and Federation have faced plenty of {{Earth Shattering Kaboom}}s through the ''Franchise/StarTrek'' movies, the villain closest to being an Omnicidal Maniac is Nero from the 2009 film: [[WoobieDestroyerOfWorlds driven insane by grief]] over the destruction of his homeworld, he has no plans for [[GalacticConqueror galactic conquest]] or delusions of [[AGodAmI godhood]]. His only remaining purpose in life is to [[spoiler: destroy each and every planet in the Federation]].
* In ''Film/ResidentEvilRetribution'', it's established that [[spoiler: the Red Queen AI]] has gone completely AxCrazy since we last saw [[spoiler: her]], and has now [[spoiler: taken over the Umbrella Corporation]], intending to use its resources and the T-Virus created monsters to wipe out all life on Earth. This is [[EvilVersusOblivion enough]] to even make fellow villain [[spoiler: Wesker]] [[EnemyMine team up]] with Alice and her allies to stop [[spoiler: her]].
* In ''Film/TheSatanBug'', insane millionaire Charles Ainsley makes it ''very'' clear to the hero that he's perfectly happy to unleash the title plague and wipe out all life on Earth. He himself has been made immune to the Satan Bug, and would live cheerfully alone on a dead world.
* The title villain in ''Film/{{Warlock}}'' tries to collect the [[TomeOfEldritchLore Grand Grimoire]] to reverse God's work and unmake creation itself to advance himself in Satan's eyes.
* In ''Film/ThorTheDarkWorld'', Malekith wants to destroy all Nine Worlds. He feels that our entire multiverse "should never have existed".
* EvilSorceror Nix the Puritan in ''Film/LordOfIllusions'' believes it is his mission to "murder the world" and show everyone the wisdom of the grave.
* ''Franchise/ANightmareOnElmStreet'': SerialKiller Freddy Krueger became increasingly worse over time. He was always a sadist, but at first he pretended that he wanted revenge for his death at the hands of a lynch mob until he just dropped all pretense and continued killing when this goal was already completed. With nothing to stop him, he eventually [[ChildlessDystopia murders every child in Springwood]] and [[DrivenToMadness drives their distraught parents to utter madness]]. With the entire town destroyed, he just creates another "Elm Street" in a neighbouring city and reveals that he'll never stop killing until everyone's dead.
[[/folder]]

[[folder:Literature]]
* In PeterDavid's ''Franchise/StarTrek'' novel ''Q-Squared'', Trelane becomes an Omnicidal Maniac who wants to wipe out all of creation but he wants to practice, so he starts by smooshing a "mere" three adjacent universes together into a chaotic orgy of violence and death.
* The [[spoiler: clone of Victor Helios (Doctor Frankenstein)]] from DeanKoontz ''Lost Souls'' wants to [[spoiler: feed all humanity to some nanite colonies he created.]] After all of humanity is dead he will die himself to reverse Genesis.
* In the ''Series/StarTrekDeepSpaceNine'' trilogy ''StarTrekMillennium'', the Grigari (who scare the ''Borg'') worship an offshoot of the Pah-Wraiths, who want to reduce the physical universe--including all of history, not just the present--to a timeless, spaceless mathematical abstraction. They succeed.
* Michael Swanwick's two parallel novels ''TheIronDragonsDaughter'' and ''Jack Faust'' are both devoted to showing how an initially fairly sympathetic character can turn into one of these. In both books, it roughly boils down to living in a CrapsackWorld and being cruelly manipulated by a covert EvilMentor.
* In ''{{Runemarks}}'', [[spoiler: the Whisperer seeks to start the End of Everything so that it can create a new world where it is in supreme control of everything, a desire stemming from being used as, essentially, a Magic 8-Ball by the Norse gods.]]
* The eponymous machines of Creator/FredSaberhagen's ''Literature/{{Berserker}}'' series will stop at nothing less than the total eradication of all life. Note that this was what they were ''programmed'' to do (though this was supposed to be targeted only at a certain enemy star empire), so they don't exactly fit the mold -- but whoever programmed them to do it probably did.
* In the ''Literature/{{Discworld}}'' novels, we have the Auditors. They crave an orderly universe, and hence want to extinguish all life because life is unpredictable.
* In Creator/DavidEddings' Literature/TheRedemptionOfAlthalus, the god of destruction, Daeva, wants to undo all creation. Interestingly, Daeva was originally a good god, or at least neutral, and had the job of destroying things that were no longer necessary so that creation wouldn't become overpopulated. However, only destroying things meant that Daeva felt nothing but emptiness, whereas his brother Deiwos and sister Dweia got to feel the joy and love of creation respectively. Daeva tried to find a friend in Ghend but if anything, Ghend's company was what finally tipped him over the edge into [[IfICantHaveYou destroying everything so everyone would feel the same nothingness that he feels]], as well as breaking the power of Deiwos and Dweia.
* The [[BigBad Storm King]] of TadWilliams' ''MemorySorrowAndThorn'' series hovers on the border between Omnicidal Maniac and WoobieDestroyerOfWorlds. Presented initially as an [[EldritchAbomination implacable force of destruction]] waiting to be [[SealedEvilInACan released]] on an unsuspecting world, it's later revealed that he got that way by evolving from a MessianicArchetype through KnightTemplar to WellIntentionedExtremist, all in an effort to save his people and return them to greatness. By the end, he's completely insane and dedicated to destroying all living things, but it's his very [[TheWoobie Woobiedom]] that provides the key to his defeat.
* Hactar, from ''Literature/LifeTheUniverseAndEverything'', is an ancient, sentient computer that was ordered to design the "Ultimate Weapon", and pulverized for disobeying that command (it couldn't conceive of any possible scenario where destroying the universe would be a preferable option). Set adrift as an interstellar cloud of still barely-functioning dust, Hactar spends the next several billion years [[TheChessMaster manipulating another planet's inhabitants]] into reaching the same xenophobic cultural state as its creators, and then reinventing and triggering the same super-weapon in order to put an end to all of existence. Hactar explains its motives as mostly simply fulfilling its original function, but partly to take revenge on the universe for the [[WoobieDestroyerOfWorlds eons of suffering]] it has endured as a result of its original decision.
* The Xul from the ''Heritage''/''Legacy''/''Inheritance'' trilogies by Ian S. Douglas. They wipe out every race that is more advanced than the bronze age because they could be a threat.
* [[NamesToRunAwayFromReallyFast Ruin]], BigBad of Creator/BrandonSanderson's [[Literature/MistbornTheOriginalTrilogy Mistborn trilogy]]. It was one of the two primal gods (its counterpart was Preservation), who combined their powers to create the world- something to which Ruin agreed only on the condition that it would get to destroy said world someday. To be fair, one can't really hold this against Ruin, as it's the literal god of destruction and is just doing its job, but still the thing seems incapable of recognizing that unchecked destruction is ''bad'' (or maybe it does recognize it, but because of what it is it is incapable of caring). On the other hand, it's worth noting that he was apparently a human who ''became'' Ruin, so....Possibly less force of nature, more psycho who likes to destroy things.
* The main villain of ''Franchise/TheDarkTower'' series. [[spoiler:The Crimson King wants to undo all of creation and plunge every universe that has ever existed back into a primordial soup of space-time dis-continuum. The reason: that primordial soup, which was pure magical energy, was what the Crimson King lived in before reality came about, and he wants to go back to living in the primordial soup.]]
* The Speaking Gun, from the ''Literature/{{Nightside}}'' series, is an organic sentient weapon that's capable of annihilating all of creation. And boy, oh boy, does it ever ''want'' to destroy it all, if only it could pull its own trigger....
* Morgoth of ''Literature/TheSilmarillion'' is called "the Dark Enemy of the World" for a reason - his ultimate goal is simply to destroy the Earth, reducing it to the original primordial void. This mad scheme is in contrast to his apprentice Sauron (later the BigBad of ''Literature/TheLordOfTheRings'') whose original motivation was to impose order and structure upon what he saw as a chaotic and disordered world.
** Though under Morgoth's influence, Sauron was infected with some seeds of the same madness. As JRRT notes at one point, rebellion against the Creator leads naturally toward nihilism. Ironically, Morgoth has a goal that simply can not be achieved, the universe can only be changed, not unmade, by any power less than God. JRRT noted that Morgorth, if he could, would grind the universe to dust, and then hate the dust because it was made by Eru (God), but the dust would still ''exist'', frustrating Morgoth...and the world could in theory by restored by the other Valar.
*** This idea of leading "naturally toward nihilism" was the root for Morgoth as well. His desire to destroy the world came out of jealousy, because his original desire, before descending into full-blown evil, was to create of his own will, completely independently of the designs of Eru. It was only when he learned that he could not do so (or would not be allowed to do so by his kindred) that he resolved to destroy everything. Similarly Sauron's destructive tendencies came from a need to remove those who would stand in the way of his supposed order-bringing mission.
* Chaos from the Literature/{{Dragonlance}} series of novels wants to destroy Krynn, and probably the rest of the universe as well. Chaos is the wellspring from which everything came, and also from which everything will return, the Aspect of Chaos that emerged in ''Dragons of Summer Flame'' just wanted to hasten the process. The deity Morgion also appears to have some Omnicidal Maniac tendencies, as he is the god of Madness and Disease. One of his lines in a novel is ''I am Morgion...I am the end of all things.''
* In the second two books of the ''Literature/OldKingdom'' trilogy [[spoiler:Orannis the Destroyer is [[SealedEvilInACan released]] and wants to, well, destroy everything.]]
* In JohnCWright's ''[[Literature/ChroniclesOfChaos Titans of Chaos]]'', [[spoiler:Hermes]] reveals that he wants to destroy the universe. [[KnightTemplar He promises to make it all better afterwards.]]
* Wyrm, the enormous serpent who is the BigBad of ''Literature/TheBookOfTheDunCow'', plans to burst out of the Earth and destroy everything in the universe. It is even explicitly stated that he is capable of killing ''angels'' if he wants to.
* "The Great Lord of the Dark" from the ''[[Literature/TheWheelOfTime Wheel of Time]]'' series: while most of his followers believe that after he his freed and remakes the world they will rule beneath him, a recent book showed[[spoiler: that Moridin/Ishmael claims that they are all fools because when The Dark One is freed he will simply destroy everything, including his own worshipers.]]
** [[spoiler: Moridin expresses that he's quite alright with this scenario, too, as he is quite sick of the cyclic nature of time. This may qualify as a SuicidalCosmicTemperTantrum, seeing as how he'll cease to exist too and is very much aware of this. In fact, it's a good portion of why he keeps working with The Dark One.]]
* The White Witch from ''Literature/TheChroniclesOfNarnia'' is pretty nasty, but you don't know how ''utterly evil'' she actually is until the {{prequel}} ''The Magician's Nephew''. She used [[FantasticNuke the Deplorable Word]] to wipe out ''every single life form in her universe except herself'', and then [[SealedEvilInACan preserved herself]] until someone could free her. When she left her universe, it apparently vanished from existence, as the last living organism was now gone. The whole thing was less that she ''wanted'' to destroy everything and more that she was losing the war against her sister and figured it was the only way to survive.
* The unnamed, [[EldritchAbomination possibly inhuman]] [[VillainProtagonist narrator]] of the poem cycle "I Have A Special Plan For This World" by Creator/ThomasLigotti.
* ''Literature/SkulduggeryPleasant'' gives us [[WoobieDestroyerOfWorlds Lord]] [[BlackKnight Vile]] and [[ApocalypseMaiden Darquesse.]] [[EvilVersusEvil The need to kill everything also extends to each other.]] [[spoiler: Technically they are both the {{Super Powered Evil Side}}s of our heroes, Valkyrie and Skulduggery]]. It gets awkward.
* Vilkas of Literature/TalesOfKolmar is a heroic mage with immense power that he never uses more than a trace of. This is because he often has dreams he think will come true - that one day he will have to use his full potential, and at that point it goes one of two ways. Either he will become a Sky God of purest benevolence, helping everyone and guiding the world to an age of utter prosperity, or a demon will attack him and he will kill it with a flick of his power. Then he will become what he calls "The Death Of The World" and kill every living thing on Kolmar and in the Hells, finishing by reaching out and crushing the sun in his hand. Either way it feels ''fantastic'', and he's laughing the whole time. He does have to call on that potential and [[spoiler: starts well on his way to being the Death Of The World]] before someone snaps him out of it. He hates them for that since it means the pure delight of [[spoiler: genocide]] suddenly sours, but gets over it eventually [[spoiler: and just becomes a strong but unspectacular healer-mage]].
* [[spoiler:Cronal]] from ''LukeSkywalkerAndTheShadowsOfMindor'' was of an order that maintained that the only real power is destruction, and see the Force as nothing but "the Dark". His plan was to kill everyone and accelerate the heat-death of the universe; then he would have his own [[Film/TheDarkKnightRises permission to die]].
* In what has got to be the weirdest example of this trope ever, Tobias from ''Literature/{{Animorphs}}'' becomes this in the climax of ''Megamorphs #02: In the Time of the Dinosaurs''. Tobias, just so you know, is firmly one of the heroes. He's TheChosenOne. And yet he coldly manipulates his teammates and the resident aliens they're allied with in order to prevent the destruction of a comet set to crash into Earth. Yes, ''that'' comet. Which not only wipes out all the dinosaurs, but the entirety of the peaceful Mercora race as well. When confronted, Tobias becomes furious and cites IDidWhatIHadToDo as the excuse for his genocide. Most disappointingly, the entire sordid incident is never mentioned again, putting Tobias firmly in the rank of KarmaHoudini, although the Megamorphs books are hard to tie to/place in the canon timeline.
** Of course, if the comet doesn't wipe out the dinosaurs, then the human race can't develop to replace them, which would result in an omnicide-by-retcon of the humans instead, so Tobias would have been an OmnicidalManiac either way.
* [[TheBerserker Ogier]] from Literature/TheBalladOfTheWhiteHorse, and the so-called [[TheOldGods Gods behind the Gods]] he follows. Unlike most examples, though, he's only TheDragon; the story establishes [[BigBad Guthrum]]'s [[StrawNihilist nihilism]] as far more terrifying, if [[OrcusOnHisThrone less effective]].
* The Literature/{{Dune}} prequel novels establish that [[spoiler: Earth has been destroyed]], because of the [[RoboticPsychopath Titans]], human brains in warmechs, who now are intent on killing or enslaving all humans in the galaxy. Conversely, after the Titans attack human planets, the Butlerian Jihad begins and the humans order all thinking machines destroyed.
* ''Literature/LegacyOfTheDragokin'': After Daniar points out that women are not morally superior to men, [[spoiler: Kthonia]] decides to kill everyone.
* Dark magic caused [[spoiler:Shruikan]] from the ''Literature/InheritanceCycle'' to go batshit insane and become like this.
* [[BigBad Lord Foul]] [[GodOfEvil the Despiser]] from the ''Literature/ChroniclesOfThomasCovenant'' has the ultimate goal of destroying the Arch of Time, which would unmake physical reality in the process- because he's actually [[SealedEvilInACan a prisoner]] in physical reality, and wants to leave. Being exactly who and what he is, even if he ''didn't'' want to escape from the world he'd probably ''still'' try to destroy it (after a few millennia of torturing everyone) ForTheEvulz.
* Nick Perumov's ''Keeper of the Swords'' series is, in fact, a Thirty Omnicidal Maniac Pileup. We have no less than three main ones: The Unnameable One, a bog-standard EldritchAbomination made of existential nothing, and his minions the Western Darkness and the Goatlegs; the Savior, an evil CrystalDragonJesus who wants to have a biblical Apocalypse; the Faraways, mysterious entities who want to create a new big-G God and do not care about the effects of this on the multiverse. In addition to this, the shenanigans of various normally non-omnicidal multiversal entities like the Fallen Gods often result in [[AMillionIsAStatistic destruction of a dimension or two]], in which case the lack of true omnicidalness of those entities is little comfort for those living in a world doomed by them; the series is set in only two worlds, which is small spare change for those entities. Have we mentioned that those two worlds are in the focus of attention of the big three Omnicidal Maniacs?
** One novel where the Unnameable One with his thousand young and the Savior both make an appearance is ''Literature/DiamondSwordWoodenSword''.
[[/folder]]

[[folder:Live Action TV]]
* In ''Series/{{Angel}}'', there's The Senior Partners of Wolfram and Hart. While the Partners have grown powerful by feeding on humanity's potential for evil, they ultimately want to bring about the Apocalypse. [[spoiler: They keep Angel around because he is destined to play a part in it, and they want to make sure it's on the side of evil.]]
* The Thirdspace Aliens from ''Series/BabylonFive'', evil, psychotic, telepathic creatures powerful enough to frighten the damn Vorlons, are described as "anti-life itself" bent on destroying everything in both their universe AND our universe.
** Shadows seem like this at first but the reality turns to be a bit murkier.
* The Cylon Cavil in ''Series/{{Battlestar Galactica|Reimagined}}'' is practically one of these. He's tried to kill off all of humanity (with an over 99.9% success rate) and most of his own race (five out of eight models, [[CainAndAbel succeeding with at least one of them]]).
* ''Series/BuffyTheVampireSlayer'':
** Angelus and Drusilla in the season two finale. This actually forces Spike (who was years away from his chip, and further away from turning good for real) to work with Buffy to stop them.
** Willow in the series six finale, once she decides the [[WoobieDestroyerOfWorlds world's just not worth living in]].
** Glory doesn't seem to care that the activation of the Key will irreversibly fuck up everything, possibly because she can survive (or ''thinks'' she can survive) the chaos that would descend upon all universes. Being a Hell God of primordial chaos who was so powerful, evil, and destructive that her peers in the Hell God business pulled an EnemyMine to depose her probably helps too.
* ''Series/DoctorWho'' has plenty of these, with the trope perfected in Sutekh from "Pyramids of Mars", who wants to destroy all life in the universe.
-->'''Sutekh:''' I am Sutekh the Destroyer. Where I tread, I leave nothing but dust and darkness. I find that good.
** The Doctor Who New Series "perfected trope" can be found in Fourth Season episode "Journey's End", where Old Series villain [[spoiler: Davros]] has [[spoiler: taken Dalek xenophobia to its extreme by creating a "Reality Bomb" which will annihilate reality]].
---> [[spoiler:[[PunctuatedForEmphasis This! Is my ultimate victory Doctor!]] [[LargeHam THE DESTRUCTION! OF REALITY! ITSELF!]]]]
** In the old series, Davros never quite attempted this, but conversations between him and the Doctor suggested he would if he had the power - simply because he ''could''. [[spoiler: Which pretty much sums up why he'd want to destroy all of reality in Series 4 - because he can. Should be noted that though he will survive along with the Daleks, he takes it for granted that they eventually will kill him too once the bomb has done its job.]]
*** More than just suggested; in the episode where Davros was introduced, the Doctor asked him, "If you created a virus that, if released, would destroy all other life in the universe, would you release it?" After talking a bit about the incredible power he would hold, Davros concluded that if he created such a virus, yes, he ''would'' release it, ''[[ForTheEvulz simply because he could]]''.
** Fenric, though he didn't get as close, also counts.
** Or Light - the alien researcher who decided to wipe out all life on Earth because he couldn't tolerate how everything was constantly evolving.
** Or the Daleks, Davros' omnicidal mutant creations and the Doctor's collective archenemy. Their entire purpose of being is to eliminate everything in the universe, and on occasion the ''multiverse'', that is "non-Dalek" on the basis of their own supposed genetic superiority. Davros learnt the hard way that this logically includes him as well.
** Or Omega, especially after his VillainousBreakdown in "The Three Doctors".
** Or the Beast from Impossible Planet/Satan Pit
** The [[spoiler:Time Lords themselves]] become this, desiring to AscendToAHigherPlaneOfExistence by destroying time itself.
** The Black Guardian is another perfect example
* The Bio-Vizier Mantrid in ''{{Lexx}}'' went from a garden-variety psychopath to a complete nihilist who [[spoiler: managed to destroy the 'Light' Universe with his Drone Arms, which would obliterate a planet and use the materials to make new Drone Arms. They were capable of moving faster than light (considerably so), and he was eventually tricked (AFTER they had '''consumed''' the 'Light' universe) into bringing them too close together, where their collective gravity ended up collapsing into a 'Big Crunch', the opposite of a Big Bang. The so-called "Heroes" were shunted into the 'Dark' universe by the forces of the collapse.]]
* Early ''PowerRangers'' villains were always talking about conquering or destroying the world, the same villain going from one to the other and back frequently. From season five onward, villains are more certain about what it is they're after.
* [[RoboticPsychopath Brainiac]] in ''{{Smallville}}'' is a MisanthropeSupreme who believes that HumansAreBastards and thusly, [[KillAllHumans need to die]]. Originally created to serve as TheDragon to [[SealedEvilInACan General Zod]], Brainiac goes rogue after the General's defeat and sets out to kill everybody on Earth through any means necessary. He implies that once Earth is dead he intends to repeat the process on the next planet he arrives on.
* Anubis in ''Series/StargateSG1''. While ''most'' Goa'uld we meet are {{Evil Overlord}}s, this guy stands out. The [[CardCarryingVillain blatantly evil]] race whose [[PlanetOfHats hat]] is "EvilOverlord with a god complex" decided this guy was ''too dangerous'' because unlike your average Goa'uld, he doesn't want to conquer the entire galaxy, he wants to ''wipe out all life'' in it. And then repopulate it with lifeforms of his design, but that's an academic distinction to anyone that's not Anubis.
* In ''Series/StarTrekDeepSpaceNine'', Dukat, as the avatar of the Pah Wraiths in the series' GrandFinale, gloatingly [[JustBetweenYouAndMe announces his long-term plans]] to Sisko: he and the Pah Wraiths intend to create a universe of fire, purging all life and destroying everything. He thankfully doesn't get any further than bragging about it.
** In the ''StarTrekMillennium'' novels, Weyoun becomes host to a Pah-Wraith after the creation of the red wormhole. The Pah-Wraiths' eventual goal is to have the blue and the red wormholes open in immediate proximity to one another, resulting in an epic battle between the Prophets and the Pah-Wraiths. However, the merging of the wormholes will result in a Warp 10 shockwave that will obliterate everything in its path. Given that Warp 10 means "simultaneously everywhere in the universe", the shockwave will result in the end of everything. Luckily, [[spoiler:the Prophets win the battle and restore everything to the way it was]].
* In one ''Film/JamesBond'' inspired holo suite episode, the BigBad's plan was to cause gigantic earthquakes at certain points along the globe, killing almost everyone except a select few he has decided to save, to rebuild humanity.
** From [[Series/StarTrekTheOriginalSeries the original series]], there's [[spoiler: Matter!Lazarus]] from "The Alternative Factor". In order to kill his enemy, [[spoiler: his Anti-Matter double]], he has to cross the threshold into the other universe, but bumping into said enemy while in the same universe will destroy both universes. Despite knowing this, he's so far gone that he simply doesn't care.
* Azkadellia from ''Series/TinMan'' creates a device which the Mystic Man states will bring about "the complete destruction of the OZ." The device is designed to fix the two suns of the OZ in a permanent solar eclipse, which as any scientist will tell you, will ultimately result in the destruction of all life. There is an extremely rare double-eclipse happening (i.e. both suns "hiding" behind the moon), which Azkadellia plans to lock into place.
* H.G. Wells from ''{{Warehouse13}}'' uncovers the Minoan Trident, the worlds first weapon of mass destruction, and uses it in a plot to begin a second ice age upon her debronzing. Wells' end of the world plot stemmed from a self realization that present society had not changed for the better since her last appearance in the Victorian era. The trident would have enforced an ice age and therefore caused the world to reset and heal itself of humanity's failure.
[[/folder]]


[[folder:Music]]
* {{GWAR}}: Several of their songs come back to this theme, most notably ''Biledriver'' (Refrain: "I Want to Murder everyone in the entire world..."), ''Bring Back the Bomb'' ("I must use the nukes, I can't kill you all with my hands!"), ''Storm is Coming'' ("We'll kill EVERY species, not just one or two"), ''War Is All We Know'' ("Hatred of all things alive!..."), and ''We Kill Everything'' ("And we'll kill everything, including ourselves...")
[[/folder]]

[[folder:Mythology and Religion]]
* EgyptianMythology had two examples. One was Sekhmet, a BloodKnight who may be [[FunPersonified Hathor's]] SuperpoweredEvilSide, known to regard everything as an enemy; however, get her drunk and she'll fall asleep and hopefully turn back into Hathor (Ra once did that by dying some beer blood-red). The other was BigBad Apep/Apophis, the AnthropomorphicPersonification of [[ChaoticEvil chaos]], [[DarkIsEvil darkness]] and all the world's ills. Prior to the demonisation of Set/Sutekh, this was ''the'' GodOfEvil, who constantly tried to devour Ra (aka ''the sun''), which [[CaptainObvious would end the world]]. To give you an idea, even after his demonization, it was commonly believed that Set/Sutekh had a role in fighting Apep, as well as having power over storms, and so people prayed to him to fight Apep well and to maybe not hit them with so hard of a storm next time. People always prayed ''against'' Apep.
* NorseMythology has most of the frost giants, as well as Jormungandr and Fenrir head in this direction during [[TheEndOfTheWorldAsWeKnowIt Ragnarok]]. Skoll and Hati, the wolves who seek to devour the sun and the moon are also examples. The two worst however, are Surtr, King of the Fire Giants and Lord of Muspelheim, and [[UltimateEvil Nidhoggr]]. Surtr will lead the sons of Muspel against the Aesir at Ragnarok, slay Frey (who by this point is one of the few gods still standing), [[HeroKiller slaughter the remaining Aesir]], and then set the world itself ablaze. Nidhoggr, in the meantime, is a massive and utterly evil dragon who sits at the roots of [[WorldTree Yggdrasil]] and tries to bring the entirety of creation down into oblivion. It will finally succeed during Ragnarok and, what's worse, ''survive the end of the world''.
* The [[TheFairFolk Nuckelavee]] of Orcadian (from the Orkney Islands north of Scotland) mythology is a truly monstrous example of TheFairFolk. Resembling a skinless rider fused to the back of his monstrous horse, it rises from the sea to spread disease among crops, livestock and people.
[[/folder]]

[[folder:Tabletop Games]]
* In [[MagicTheGathering Magic: the Gathering]], the [[EldritchAbomination Eldrazi]] are a race of three (known) titanic beings who are born of the Multiverse, who feed off of entire planes of existence. Currently trapped on the plane of Zendikar, they are known to cause swaths of destruction miles wide wherever they roam.
* In TabletopGame/GammaWorld, the Cryptic Alliance (a massive semi-secret organization) known as the Red Death wants to do this. In earlier editions it was implied [[spoiler: that the organization was formed by hideously evil aliens to further divide the inhabitants of Earth so that they could come in and take over]]. In later editions, it is implied that it formed because of people snapping due to [[CrapsackWorld the crapsack nature]] of the post-apocalyptic Earth. Oh, and as a final note, in all editions [[OhCrap it's said to be nigh impossible to wipe out.]] [[AsLongAsThereIsEvil For, no matter how many of their cells you destroy, a new one will always spring up]]
* The Excrucians in ''TabletopGame/{{Nobilis}}'', for reasons best known to themselves.
** This was elaborated on in third edition. Deceivers love the world, but they believe that most of the things ''of'' the world are lies put between themselves and the thing they love - as Chibi-Ex put it, "all just an illusion, that running and breathing and hoping and living and dying" - and so they try to unmake the lies of the Imperators to free everything. Warmains want to test the world and only extract into the Lands Beyond those things that pass their test (as a result, it is often wise to deliberately throw a contest with a Warmain, since they only try to kill you if you pass). Mimics twist the world rather than destroy it, because by their very nature they are broken, stitched together from fallen Imperators. The truest example of this trope are the Strategists, who hate the world as a crime against the void and have free access to the World-Breaker's Hand, a Gift that can [[PersonOfMassDestruction destroy anything]].
* The Deathlords and their servants, the Abyssal Exalted, from ''TabletopGame/{{Exalted}}'' fit this trope to a T. The Deathlords seek revenge on a world that betrayed them by feeding it to Oblivion, and many of the Abyssals believe that they're delivering the blessed perfection of the grave to a suffering world. This has been backed up mechanically by Second Edition rules; every Abyssal Charm (magic power) is rooted at destroying something, be it a life or a loyalty.
** The Neverborn are the ghosts of fundamental entities who cannot be separated from existence, whose death messed up the cycle of reincarnation and created the Underworld and who want to destroy the universe, apparently so that they can finally finish dying.
** Large factions of TheFairFolk want to destroy the universe, either because the mere existence of a world with rules and logic and limits disgusts them, or because it is dramatically appropriate for a scary monster and they like looking like scary monsters (or rapturously beautiful Whore-Madonnas or both).
** Adorjan murders everything she touches, and would cheerfully kill everyone in existence if she had the chance. Oddly enough, thanks to huge amounts of BlueAndOrangeMorality, she's actually one of the more compassionate Yozis, although [[AxCrazy given the nature of her kindness]] most of her victims would probably be happier if she wasn't.
* The demons of the Abyss from the ''TabletopGame/DungeonsAndDragons'' settings. They are believed to be the will of the Abyss itself, which is endless raw chaos, distilled into sentient and individual form, with the ultimate goal of eradicating everything other than themselves. Assuming they succeed, as ChaoticEvil they'll then turn on each other, and when they are all destroyed, the multiverse will be silent once again. The exception is [[MagnificentBastard Graz'zt]], who as befitting the Dark Prince of Deception, prefers that the world remain around for him to rule.
** While in 3rd and earlier editions this might be an example of ChaoticStupid, in 4th it's their defining characteristic.
*** And then there's Tharizdun from the ''{{Greyhawk}}'' setting whose goal is the destruction of all existence finishing with himself. It took the combined efforts of all the other gods, good and evil, just to [[SealedEvilInACan imprison him.]] His credentials grew in 4th Edition, where he actually ''created'' the Abyss by throwing a shard of pure BlackMagic into the Elemental Chaos.
*** Thanatos, supreme Immortal of Entropy, supposedly has similar plans for the {{Mystara}} cosmology, although given his [[SmugSnake egotism]] and [[{{Hypocrite}} cowardice]], it's questionable whether he'd ultimately include ''himself'' on the To-Be-Annihilated list.
** The book Elder Evils is full of {{Eldritch Abomination}}s who would very much like to destroy the world/worlds/universe/multiverse. In fact, the book suggests that the terms "Elder Evil" and "Omnicidal Maniac" are more-or-less synonymous with each other. Most - but not all - mortal beings that serve these entities qualify as well.
** Demons are played differently in ''TabletopGame/{{Pathfinder}}''--while they love wanton murder and destruction, they ''don't'' want to destroy everything because then they'd have no more fun. Instead, the cessation of all life is the goal of the NeutralEvil daemons, who know nothing but hatred for everything, themselves included, and derive pleasure from nothing. To compare the two, whereas a demon would rape you to death for its own enjoyment, a daemon would quickly and efficiently kill you just to snuff you out.
*** The Asuras are a minor type of LawfulEvil fiends who want to destroy all of divine creation as they are "errors" of the gods, while the [[EldritchAbomination Qlippoth]] want to eradicate [[KillAllHumans all sentient live]] so no sinful souls arrive in the Abyss to form Demons, so the Qlippoth can reclaim it for them again.
*** Then there is Rovagug, who is very similar to Tharizdun above, but imprisoned in the core of Golarion (the setting's main planet) instead of outside the universe and is still capable of releasing devasting monsters known as Spawns of Rovagug, the most well known being the Tarrasque.
*** And finally, there are the [[ChaoticNeutral not actually evil]] Proteans, [[BlueAndOrangeMorality who want to destroy everything so they can build it anew.]]
* In the TabletopGame/NewWorldOfDarkness, while many beings are malevolent and highly destructive, the most noteworthy are from ''TabletopGame/MageTheAwakening'': the Scelesti (mages who serve the abhorrent [[CosmicHorror Abyss]], and seek to allow its anti-reality to seep into this world in order to bring it to an end) and the Cult of the Doomsday Clock (a group of mages who believe that the best way to free the souls of humanity is to destroy all of time and history, using their evil clocks, and by becoming living time paradoxes. They also (unknowingly) serve the Abyss).
** From the [[TabletopGame/OldWorldOfDarkness old WoD]], there's the Wyrm, the cosmic principle of Destruction, which has found itself trapped in the web of reality, and seeks to destroy everything so it will be free. Also the Underworld's Spectres, who want to drag everything down with them into Oblivion. And the Mages have the Nephandi, who also want to destroy our world, either for its own sake or so that creatures from beyond can replace it.
* One ''TabletopGame/{{Paranoia}}'' mission involves a NPC who's decided that everyone else is a traitor (okay, [[CityOfSpies he's right about this part]]) and needs to be killed, to the point that he would consider destroying all of Alpha Complex (minus him and a hundred-odd loyalists in a bunker) a viable option. And another group of [=NPCs=] who would also destroy all of Alpha Complex in order to take out The Computer. Naturally, the [=PCs=] encounter [[LostTechnology an Old Reckoning bomb]] capable of doing exactly that, and have to figure out a way to keep it away from both groups.
* [[spoiler: Mr. [=LeThuy=]]] from OverTheEdge. He's a nihilist secretly amassing a cult using his charisma. Over time, the members turn into perfect clones of [[spoiler: Mr. [=LeThuy=]]], body, mind and soul. They want a universe where everyone is either dead or another clone, at which point they will destroy the universe.
* In the third edition of ''TabletopGame/{{Warhammer 40000}}'', the Necrons were driven by an insatiable need to destroy everything alive and/or sentient (it was an academic difference since nobody could ask them which of the two it was), rendering the universe quiet and uninhabited except for themselves. Later this became a tactic to defeat their main enemies, the Warp gods- killing all life would starve off the Warp (the sum total of all emotions). As of their latest codex this has shifted into turning them into [[TabletopGame/{{Warhammer}} Tomb Kings]] InSpace, making them no longer an example.
-->'''Necron Pariah:''' There is an alternative (to life). There exists a state in which all conflict is resolved and all is cold and silent. There are no wants, no wars, no squabbles. You may call this state death if you wish, but that is a misnomer. Death is but the ending of life, and that is only a means to an end. That end is purity, the time when all is still and unchanging.
** The Chaos faction known as the Purge believe the only way to save the galaxy is to kill everything in it. They believe themselves to still be pure; their victims would disagree if they were in any state to do so.
** Likewise, the Chaos faction known as the Crimson Slaughter embark on massive killing sprees for the sheer sake of carnage, because these Renegade {{Space Marine}}s are afflicted by a curse that causes them to be haunted by the ghosts of their victims. Only slaying fresh victims can quiet the voices that will otherwise drive them insane; the bloodier the massacre, the longer the reprieve they get before the voices come back.
* This is the true nature of the Army of the Expeditionary Force, from the aptly named ''3:16 Carnage Amongst the Stars''.
* In ''{{Warhammer}}'' this is the goal of Nagash the Great Necromancer. He wants to kill everyone and raise them as his undead servants.
** Vlad von Carstein has a similar goal, but in his case it's more of a KnightTemplar thing- the undead are immune to Chaos, so by killing every living thing in existence and reanimating them in his thrall, he's actually ''saving'' them from Chaos! .. Or so he says.
* The Mexico City Zonemind in ''TabletopGame/GURPSReignOfSteel'' take the standard KillAllHumans tendency of the Zoneminds who rule the Earth to the extreme of wanting to eradicate ''all'' organic life. It keeps the fact that it is developing plans to do so on a global scale (and not just within its Zone) secret, as several of the other Zoneminds aren't so extreme (or at least are extreme in ''other'' ways, like Berlin's irrational obsession with humanity as a threat to nature) and would oppose it by force if they knew about it.
[[/folder]]

[[folder:Video Games]]

* ''{{Minecraft}}'' brings us the Wither, which is essentially the ultimate griefer. It blows up everything in its path, and holds the philosophy that if something is alive, it must cease to be as such. [[ThatOneBoss It's also very good at this too]]. In-game griefers can be this as well, reducing server populations on death-ban servers to ridiculously low numbers.
* HalfMinuteHero has a game mode called hero 30 that reduces this type of villain to a MonsterOfTheWeek and uses them as the boss of every single level all of them seeking the destruction of the planet, for reasons that vary from genuine nihilism, to a GiantEnemyCrab upset about not being able walk forwards.
* ''VideoGame/BlazBlue'' gives us [[BigBad Hazama]]. He despises any lies hat someone tells him, and what does he call the world? '''Lies! Lies! Lies!''' [[MoralEventHorizon Considering his actions and]] [[ForTheEvulz lack of motives for said actions]], the player can tell he's a psychopath that really does want to destroy everything.[[spoiler:Although his true goal is to get back at the Master unit and the Real BigBad Izanami even more so since she wants to create a world of death.]]
* ''VideoGame/TalesOfGraces'' sees [[spoiler:[[BigBad Lambda]]]] attempt to invoke this because HumansAreBastards. What he ''doesn't'' count on, however, is [[TheHero Asbel]] being smarter than he looks. Asbel deconstructs the cliche by pointing out how the destruction of all life accomplishes nothing, doesn't solve any of the issues that people have and doesn't even benefit the one who enacts it in any way (as they will be the only being left alive... and [[TakingYouWithMe not all the time]]). This complete obliteration of [[spoiler:Lambda]]'s goal is what inspires him to [[spoiler:accept Asbel's offer of ''[[TalkingTheMonsterToDeath letting the world live]]'' and allowing Asbel to show him that HumansAreSpecial]].
* ''VideoGame/ArmoredCore: for Answer'' has Old King. [[spoiler: And you when siding with him.]]
* The main villains of ''VideoGame/{{Bayonetta}}'' are this, as they all want to resurrect [[GodIsEvil Jubileus]], who wants to end the current state of existence.
* VideoGame/AncientDomainsOfMystery: The goal of the Chaos beings, who invade the realm from another dimension. Also, it is possible [[spoiler: for the player to defeat the Chaos God, take his place, and do it by himself.]]
* ''VideoGame/TheLegendOfZeldaMajorasMask'': Clearly, any demon [[SealedEvilInACan trapped inside a mask]] who wants to completely [[EndOfTheWorldAsWeKnowIt destroy the world]] by [[ColonyDrop crashing the moon into the Earth]] can't be sane.
-->"I...I shall consume. Consume...Consume everything."
** In ''VideoGame/TheLegendOfZeldaOracleGames'', [[spoiler:Ganon was resurrected into this instead of his usual intelligent self due to an improper sacrifice of his evil surrogate mothers]].
* NeverwinterNights2: The [[LivingShadow King of Shadows]]. He was initially created by an [[AbusivePrecursors ancient empire]] to protect it from evil forces. There are a series of flukes that turns him evil after the people that made him died off. With nothing left to protect, The King of Shadows goes berserk and decides that the entirety of the ForgottenRealms is responsible for the empire's collapse. He naturally comes to the conclusion that the whole world needs to be destroyed in retaliation.
** [[TragicVillain Akachi the Betrayer]] in the expansion was cursed by the now-dead god of death, Myrkul. A HorrorHunger has consumed him, leaving him an empty shell with an insatiable need to devour the spirits around him. If left unchecked the curse could devour planes. [[spoiler:This is the evil ending of the game. The PlayerCharacter can do exactly that, [[KilledOffForReal utterly annihilating]] several gods in an epic battle.]] It is an example of just how powerful the Spirit-Eater curse is.
* ''FinalFantasy'' is big into this. In order:
** [[VideoGame/FinalFantasyI Chaos]], who came into existence thanks to the Fiends, who were already destroying the world to begin with.
** [[VideoGame/FinalFantasyIII Xande]] is pissed about being made mortal and wants to put everything into suspended animation, forever. [[spoiler:Cloud of Darkness, a personification of the Void]] wants to reduce everything in both worlds to nothingness.
** [[spoiler:[[VideoGame/FinalFantasyIV Zemus]]]] wants to exterminate all human life on Earth [[spoiler:so that he (and the other Lunarians, maybe) can rule. Zeromus]] is just evil. [[GiantSpaceFleaFromNowhere Or something]].
** [[VideoGame/FinalFantasyV Exdeath]] is an arbormorphic personification of evil. [[spoiler:Neo Exdeath, a personification of the Void]] wants to reduce everything (including itself) to nothing... [[VideoGame/FinalFantasyIII wait...]]
*** This was touched upon (vaguely) in ''VideoGame/DissidiaFinalFantasy''. Cloud of Darkness's "Void" is the destruction of everything, leaving nothing. Exdeath's "Void" is the ''return'' of everything to its original state, the '''realm''' of the Void. Cloud = Empty universes ([[ApocalypseHow AH Class X5]]), Exdeath = No universes ([[ApocalypseHow AH Class Z]]).
** [[VideoGame/FinalFantasyVI Kefka]], who is already quite insane but just got worse due to his acquired power from the Statues, and when the Heroes reveal that despite the fact that he has caused TheEndOfTheWorldAsWeKnowIt, they still harbour hopes for the future, he decides to destroy reality and "create a monument to nonexistence."
*** His pre-fight quote against Exdeath in ''Dissidia'': "Destruction without death? BORING!"
** ''VideoGame/FinalFantasyVII'' has one, and surprisingly, its not the BigBad Sephiroth, but rather, [[spoiler:his father,]] Professor Hojo. Aside from the fact that [[spoiler:he was the one who created Sephiroth in the first place (both naturally, and artifically, due to being his birth father and injecting him with Jenova's cells while he was still a fetus, respectively)]], he also was heavily implied, if not outright stated, to have manipulated Sephiroth into doing this course of action, both before and during the events of the game, and if the novellas are anything to go by, [[spoiler:he even possessed Sephiroth afterwards]], all for the sake of seeing his research prove successful, which is implied to be the total destruction of the planet, or at least severely damage it. It's not even the last time he attempts to do this, either, as Dirge of Cerberus revealed that [[spoiler:he also ended up possessing Weiss the Immaculate's body with the intention of tricking the Omega WEAPON, a WEAPON that activates when the end of the world arrives and leaves the planet, into awakening, and it is heavily implied that destroying the world was indeed his intention that time as well.]]
** [[VideoGame/FinalFantasyVIII Ultimecia]] wants to compress time into a TimeyWimeyBall so she can recreate the entire universe because she's pissed off about centuries of oppression against her kind. Even though she has a FreudianExcuse it is hardly valid, since these centuries of oppression were really set off when she went back to the time of the story, and pissed everyone off.
** [[VideoGame/FinalFantasyIX Kuja]] doesn't like the idea of the universe outliving him.
** [[VideoGame/FinalFantasyX Seymour]] thinks that life is nothing but suffering, and that the only way of escaping [[EldritchAbomination Sin]], the cause of it is that everyone should die.
** [[VideoGame/FinalFantasyX2 Shuyin]] was subjected to MindRape for a thousand years, so he really doesn't know why he's trying to kill the world, only that [[WoobieDestroyerOfWorlds it makes him feel better]].
** [[spoiler:[[VideoGame/FinalFantasyXI Kam'lanaut and Eald'narche]]]] trying to "Open the Gates to Paradise". Which would just have the side effect of killing every non-avatar and [[spoiler: non-Zilart]] on Vana'diel. Promathia [[spoiler: wants to release the Emptiness on Vana'diel killing everything so he can finally die.]]
** [[VideoGame/FinalFantasyXIII Galeth]] wants to destroy all life on Cocoon and Orphan, the fal'Cie who rules over it. Orphan himself just wants to destroy everything.
** [[VideoGame/{{FinalFantasyXIII-2}} Caius]] wants to destroy Etro, the goddess of time and death, in order to save Yeul from a ViciousCycle of early death and reincarnation. Problem is, Etro's death will cause a TimeCrash in which a wave of primordial chaos washes over the world and eventually reduces it (and all of its inhabitants) to nothingness. Caius thinks that this is an [[TheEndJustifiesTheMeans acceptable sacrifice to make]].
** [[VideoGame/DissidiaFinalFantasy Chaos]] ([[VideoGame/FinalFantasyI again]]) chooses to destroy the world [[SuicidalCosmicTemperTantrum and himself]], after finding that a world [[spoiler: without Cosmos]] was a much emptier existence than he thought it would be.
** [[VideoGame/DissidiaFinalFantasy Dissidia]] actually has the "take over the world" villains conspiring against the "destroy the world" villains on their team.
** Another Square Enix example: the BigBad of the first KingdomHearts game wants TheHeartless to destroy everything, since he believes darkness is the natural state of things. He first tries to accomplish this by [[spoiler: gathering the seven Princesses and opening the Final Keyhole]], and then by [[spoiler: opening the Door to Darkness and unleashing hordes of them.]]
** It gets even better: BirthBySleep reveals that ''that'' Omnicidal Maniac is just a ''fragment'' of an even worse one. That BiggerBad's goal? ''[[ForScience Trigger Armageddon, watch from the first row and see what happens next.]]''
* Deathborn of VideoGame/{{F-Zero}} wants to become a galaxy destroying god.Why? ForTheEvulz
* The Qualia in ChaosRings, a PlanetEater who has the ultimate goal of destroying spacetime itself.
* Utsuho Reiuji from VideoGame/{{Touhou}} became one after gaining her powers (whether this is because she was tricked into godmodding or simply curious of what god-flesh tastes like is up for discussion). Thankfully, the heroines were able to confront her before she had a strong handle of her new powers.
* Id from ''VideoGame/{{Xenogears}}'' wants to kill everyone and everything, for rather vague reasons. Granted, [[spoiler:he IS the embodiment of all hatred and suffering that Fei had mentally suppressed]], but it doesn't change the fact that he finds little reason behind his slaughter other than it being fun.
* The Destroyer from ''RomancingSaGa3''.
* According to [[spoiler: Kessler, The Beast]] from ''VideoGame/InFAMOUS''.
* The Burning Legion in the ''VideoGame/{{Warcraft}}'' games has, as its goal, nothing less than the complete eradication of all life in the universe -- and, according to the BackStory, has already destroyed several ''thousand'' planets by the time it reaches Azeroth.
** Occasionally overlapping with the Burning Legion are the Voidwalkers, who are creatures of pure entropy who exist only to devour the physical world. One of their leaders, Dimensius, is responsible for destroying the Ethereals' homeworld. [[DidYouJustPUnchOutCthulhu Players naturally get to punch him out]].
** Apparently the Twilight's Hammer cult is composed entirely of such maniacs. The ultimate goal of the cult is to bring about the end of Azeroth by any means necessary.
** In VideoGame/WorldOfWarcraft's third expansion pack, the {{Big Bad}}, Deathwing, is an example of this. When fighting him [[spoiler: he has an attack called cataclysm which is meant to completely destroy all life on Azeroth. If he succeeds via this attack or some other, as is shown in the [[BadFuture End Time]], He would have then killed himself to extinguish all life in the world.]] His minion/son, Ultraxion, [[spoiler: also has an ability, Hour of Twilight, that kills the dragon aspects and allows Deathwing to take over the world (and proceed to extinguish all life).]]
* The Time Devourer from ''VideoGame/ChronoCross'' is apparently Lavos (or one of his spawn) after being removed from time and getting pissed about how unfair life is. After all, he was just doing what he was meant to do. What right do cattle have to persecute or kill the farmer? So it's now going to eat all of time.
* Marduk the plane-consuming demon from ''VideoGame/{{Sacrifice}}'', whose mere presence on a plane of existence leads to its eventual decay and, ultimately, its complete destruction.
-->"[[TheReveal Now open your eyes and see!]] I am no mere Marduk. [[IHaveManyNames My names are countless]]. [[TimeAbyss My age beyond reckoning]]. [[HumanoidAbomination I am the]] [[AnthropomorphicPersonification embodiment]] [[EldritchAbomination of all creation's ills]], and my purpose is but a simple one: To annihilate all that is unworthy. All that is a reflection of myself."
* The ''VideoGame/MarvelVsCapcom'' series has the final bosses [[GenericDoomsdayVillain Onslaught]], [[EldritchAbomination Ab]][[OriginalGeneration yss]] and [[PlanetEater Galactus]]
* In ''VideoGame/SuperPaperMario'', BigBad Count Bleck doesn't just want to destroy the world, he wants to destroy the ''multiverse''.
** [[spoiler: Dimentio]], at least to a very narrowly smaller degree, qualifes as well, as he wanted to [[spoiler: usurp Bleck and take the Chaos Heart to destroy most of the universe and then remake it. However, he then decides to go back to destroying existence after he was vanquished, even going as far as to leave a shadow of his power behind with the Chaos Heart so that it can last long enough to destroy everything.]]
* The Shivans from the ''[[{{Freespace}} Descent: Freespace]]'' series are a ''race'' of Omnicidal Maniacs. They've managed to destroy The Ancients, a civilization that was way bigger and more advanced than the Terran and Vasudan races combined. In fact, they've been named after Shiva, "The Destroyer", ''because'' they never attempted to communicate and only seems to be interested in blowing up stuff that ''isn't'' Shivan. The first game had cutscenes which chronicle the rise and fall of the Ancients from the Ancients' perspective (complete with OminousLatinChanting), and they call them "The Destroyers". The cutscenes reveal that the Ancients figured out a way to defeat the Shivan menace, but it was too late. This [[LostTechnology Ancient information]] was later discovered by Vasudan scientists giving the Terrans and Vasudans just enough time to save their collective arses. But not before [[spoiler:the Vasudan homeworld was completely leveled, killing four billion of them, and just ''right'' before the Shivans got to Earth. That's right, not one but TWO (!!) of the most advanced, space-faring races this side of the galaxy would have been wiped out by the Shivans, if it weren't for artifacts left from a ''very'' advanced civilization that they ''did'' wipe out.]]
** Thirty-two years later in ''Freespace 2'', the Shivans even manage to [[spoiler:cause a star to supernova, in a system with billions of civilians in it.]] Granted, that time around killing non-Shivan stuff didn't ''seem'' to be their ''primary'' objective. They just killed ''everyone who got in their way''. [[spoiler:Even their own ships that seem to have suffered engine failure after emitting the triggering energy pulse and all those ships still in battle with the GTVA.]] And to heck with collateral damage from the [[spoiler:supernova]].
** In both games, there are speculations from all sides as to why the Shivans seem so bent on killing everyone. The Ancients thought they deserved their fate, for subduing "lesser" civilizations in their conquest of the galaxy. A Terran voice at the end of the first game mentions Shivans as a protector, sort of immune system of the galaxy, wiping out any civilizations that discover subspace to prevent them from being a threat to the younger, less advanced ones. The rogue Admiral Bosch from ''Freespace 2'' thinks [[spoiler:humanity has no future with the Vasudans, we're talking about an alliance with the Shivans, man!]] Admiral Petrarch, your [=FS2=] boss, thinks Shivans are like the Terrans, wandering the galaxy for a way back home ([[spoiler:the subspace link to Earth was cut off when the SD Lucifer blew up in subspace in the first game]]). Nobody really knows though, and the Shivans are unique in that they're a mystery race that actually becomes ''more'' mysterious as the series progressed. [[LeftHanging Nobody will ever know, either]], as the original publisher is bankrupt.
* Gig from ''SoulNomadAndTheWorldEaters'' fits this trope to a T... And he's [[SociopathicHero on]] ''[[SociopathicHero your]]'' [[SociopathicHero side]].
** [[spoiler:There's also Revya him/herself in the Demon Path, who ends up ''unmaking existence'' in the 'bad' ending.]]
* ''StarControl 2'': "We are the Ur-Quan Kohr-Ah. We cleanse our destiny. You will soon die. Make whatever rituals are necessary for your species."
** The Kohr-Ah are an interesting take on the concept: they do not, believe it or not, hate other species, no do they find other species disgusting. No, their whole motivation for being Omnicidal Maniacs is [[spoiler:they're ''terrified'' of other species... or, more specifically, terrified of another species growing powerful enough to enslave them. This stems from the horrific mind-controlled enslavement their race suffered at the hands of the Dnyarri. They see wiping out all other forms of life as the safest way to ensure this '''never''' happens again.]] Indeed, if you can get them to talk to you for a while instead of attacking, they're remarkably pleasant and polite... as pleasant a conversationalist as a giant black centipede in a death-dealing war machine can be, anyway.
* Prince Luca Blight from ''SuikodenII'' is a combination of this trope and AxCrazy. He's not a very pleasant guy...
* [[spoiler:Dorian General Grants]], the BigBad of ''VideoGame/TalesOfTheAbyss'', sought to annihilate the entire surface of the planet the game's set in, down to the last molecule, and build a new world upon it from scratch.
* After [[spoiler:Galcian dies]] in ''VideoGame/SkiesOfArcadia'', [[spoiler:Ramirez]] goes insane and shoots for the destruction of the entire world, stating that it is no longer worthy of living. [[spoiler:He even gives up his life to fuse with the Ancient Superweapon for Unlimited Power to destroy.]] In doing so, he mirrors the words of [[spoiler:the Silvite Elders]], who had the same goal but lacked the means.
* The BigBad of ''LiveALive'', [[NamesToRunAwayFromReallyFast Demon King Odio]], is a great example. This holds true to various degrees in all of the chapters of the game, especially the medieval chapter, which doubles as his [[spoiler: StartOfDarkness]].
* Mortimer [=McMire=] from the ''VideoGame/CommanderKeen'' games. In the first game trilogy he attempts to destroy Earth because he considers the human race TooDumbToLive. After that fails he decides to blow up the whole galaxy instead. And then it turns out that the galaxy destroying scheme was [[KansasCityShuffle there to distract the hero]], and his true goal is nothing less than the destruction of the entire universe! Sadly the next game was never made.
* The Void from the ''EverQuest'' universe and Big Bad of ''EverQuestII'' are a whole dimension's worth of these, by virtue of being the anthropomorphic embodiment of nothingness from before the dawn of creation. They are credited with the destruction of at least five other worlds prior to targeting Norrath and one alternate future shown in the bad ending of a mini-game scenario shows that they are more than capable of wiping Norrath from existence too should its denizens falter in their defense.
* ''MastermindWorldConqueror'' puts you in the role of [[DiabolicalMastermind The Mastermind]], whose goal is to destroy the Earth. He borders along MikeNelsonDestroyerOfWorlds because he equates destroying as conquering.
* The Covenant in the ''Franchise/{{Halo}}'' series are a doomsday cult led by omnicidal maniacs, the Prophets. They [[EarthShatteringKaboom glass every planet they take]] after plundering it for Forerunner artifacts, and try to activate the eponymous {{Doomsday Device}}s to destroy all sentient life in the galaxy, believing it will lead them to AscendToAHigherPlaneOfExistence.
** [[spoiler: Turns out the prophets knew the halo array's true purpose; though whether they accepted the truth (Mercy), denied it (Regret), or used it to their own purposes (Truth) varied from prophet from prophet, and it's still debated among the portion of the fanbase that reads the books.]]
** [[spoiler: As a follower of the Mantle, the Ur-Didact originally held fast to the belief that, as a Forerunner (and a Warrior-Servant), he should protect both other species and his own, while having proper respect and admiration for worthy examples of the former (such as humanity). After a rather [[MindRape unhealthy conversation]] with a Gravemind (i.e. one of his "gods"), he developed a different stance; if it's capable of threatening the Forerunners in any way, it's got to go. This includes humanity and presumably Elites, Brutes, and Prophets as well. Luckily, he took two shots to the chest and was [[SealedEvilInACan locked in a Cryptum]] before he could put his plan into action. Unluckily, he was accidentally allowed to escape 100,000 years later, and while his plan to enslave humanity as an AI army was thwarted, [[NeverFoundTheBody he is likely still loose somewhere in the galaxy.]] ]]
** [[spoiler: The Precursors might count as well. Maybe. [[BlueAndOrangeMorality They operate under an extremely incomprehensible thought process.]] On the one hand, one stated they intend mainly just to cause eternal torment and suffering for the denizens of the galaxy. On the other, their most recognizable agent is a HiveMind plague that assimilates entire species into massive mounds of flesh.]]
* ''ImpossibleMission'': Professor Elvin Atombender, a MadScientist who is attempting to hack the world's nuclear missile codes and [[EarthShatteringKaboom destroy the planet]].
* The CosmicHorror that is the W'rkncacnter in the ''VideoGame/{{Marathon}}'' series.
* In ''[[VideoGame/PokemonDiamondAndPearl Pokémon Diamond/Pearl/Platinum]]'', [[BigBad Team Galactic Boss Cyrus]] wants to use the time-and-space bending powers of [[OlympusMons Dialga and Palkia]] to destroy the current world and build a new one [[AGodAmI in his image]].
** "In his image" here means "without any emotion whatsoever". [[FridgeLogic All things considered, such a world would be effectively destroyed.]] After all, without emotion, who would ''care'' enough about the world to successfully maintain it?
*** Emotion and Willpower are two different things, and [=DPPt=] establishes this as well. One would assume that his prospective population would simply see it as a duty without attachment.
* [[spoiler: Darkrai]] from the ''VideoGame/PokemonMysteryDungeon'' games.
* And while we're on the subject of ''Franchise/{{Pokemon}}'', [[spoiler: Lysandre]] in X and Y. [[spoiler: His plan is to ensure enough resources for all people on Earth...by killing all Pokemon and most humans.]]
* The planet Meteo from ''VideoGame/{{Meteos}}'' is a gargantuan malevolent eye that wants to destroy everything in the universe via the endless hordes of meteors he spawns.
* In ''HouseOfTheDead'', final boss Magician's first words are "Who are you? Nobody gives me instructions. I shall destroy everything." In ''House of the Dead 3'', final boss Wheel of Fate opens the fight with "I will destroy everything. And resurrect everything." [[spoiler:They sound the same for good reason, as the Wheel of Fate is none other than [[EvilutionaryBiologist Dr. Curien]], Magician's creator.]]
* Lord Ghadius of ''VideoGame/{{Klonoa}}: Door to Phantomile''. His quote on the quote page is rather chilling.
* Mehrunes Dagon, the Daedra Prince of Destruction of ''Franchise/TheElderScrolls'' verse.
** The long-term plan of the Thalmor is to erase Talos, then the idea of Men, then the Mundus itself from existence in some plot to return to pre-creation "divinity".
* [[spoiler:Porky]] in ''VideoGame/{{Mother 3}}''. He wants to destroy the entire world, [[spoiler:because he's gone even more insane as a result of the TimeAbyss he went through, and that still nobody loves him.]] Slightly different from the usual in that [[spoiler:the world HAS already been destroyed - perhaps even by Porky - and that these people are the last remaining survivors.]]
* Requiem from ''CityOfHeroes'' plans to turn Earth into a homeworld for the Nictus. While that may not be enough to qualify him as an Omnicidal Maniac, you discover an alternate dimension where Requiem's plans have succeeded, and he's [[LonelyAtTheTop gone insane from being the only human left]] and is trying to destroy the entire multiverse.
* You know you're living in what amounts to a [[CrapsackWorld crapsack universe]] when these are the kinds of guys in charge. Such is the cosmos in ''[[VideoGame/{{Boktai}} Lunar Knights]]'', with [[spoiler: the Immortals running around with their [[PlanetEater Planet Eaters]], taking over all sorts of worlds and/or destroying them to impose eternity upon the universe. Granted, Lucian and Aaron make life much easier for their world by completely erasing Polidori (he's an Immortal, in case you lost track), but if [[NiceJobBreakingItHero what Dumas said has any weight to it]], there are going to be a lot more on their way...]]
* The first ''JakAndDaxter'' game gave us Gol and Maia, who wanted to unleash [[PsychoSerum Dark]] [[GreenRocks Eco]] upon the world. The third game's BigBad also fits this trope, teaming up with [[EldritchAbomination the Dark Makers]] to wipe out the ''universe''.
* Dr. Weil/[[NamesToRunAwayFromReallyFast Dr. Vile]] of the ''MegaManZero'' series. This is the ''only'' kind of BigBad you could find in the [[DarkerAndEdgier darkest period]] in ''Mega Man'' history. He starts off as an ambitious scientist, [[FantasticRacism who sees Reploids]] [[JustAMachine as mere tools instead of actual sentient beings]], and was getting tired of the constant {{Robot War}}s that they wage against humankind. When a cure was finally made (the Mother Elf) to rid the world of TheVirus that started the war in the first place, Weil Brainwashed it to become his tool for destruction, and initiated the [[WorldSundering Elf Wars]], where, in the span of ''only 4 years'', a large portion of the human and Reploid populations (60 and 90%, respectively) were wiped out. After ''that'' war, [[AndIMustScream he is sentenced to immortality, where his consciousness was transferred to a self-regenerating armor, and then sent to forever exile on the barren wasteland that he created.]] When he comes back (which his [[WhatAnIdiot "executioners"]] ''didn't'' count on) he makes sure that the humans suffer the same way he did, or worse. And when humans start to rebel and flee from his reign of terror, and his [[TheDragon general]] [[BastardUnderstudy turns on him]], he becomes much worse, setting a ColonyDrop to [[NewEden Area Zero]], the ''very last hope of restoring the dying Earth, along with the human refugees settling there!'' Only through Zero's efforts was he stopped in time, and [[spoiler:Zero [[KilledOffForReal makes his last hurrah]], and Weil, whilst defeated, remained alive thanks to his [[AndIMustScream curse]]. [[MegaManZX And he still continues to plague the world over and over...]]]]
* In ''{{Persona 2}}'', [[spoiler: Nyarlathotep's end goal is to drive humanity to total self-destruction, obliterating all life... [[ForTheEvulz so he can win a meaningless bet.]]]]
* From ''{{Persona 3}}'', both [[spoiler: Shuji Ikutsuki]] and Takaya express an interest in destroying all life. [[spoiler: The former seems to be under the impression that he will be spared and given the chance to remake the world in his image after Nyx destroys it, while the latter is already dying and just wants to see everything else go first.]]
* ''VideoGame/ZoneOfTheEnders'' has Nohman, who fancies himself as an agent of the universe's natural will towards its own destruction. Although he does seem to enjoy it just a little too much.
* ''VideoGame/DwarfFortress''-At the moment, all you can do in Adventure mode is wipe out all the world's sentient life (The only reason its not ''all'' life is because animals seem to respawn). For extra fun, people often try to kill everyone with a SelfImposedChallenge or two.
* Dark Star/Dark Bowser in the final stages of ''[[VideoGame/MarioAndLuigiBowsersInsideStory Mario & Luigi: Bowser's Inside Story]]''. He doesn't have a reason, he just wants to destroy the Mushroom Kingdom and likely universe because he's MadeOfEvil.
** ''Soon this kingdom will vanish along with all who dwell within. And you, too, will sleep eternally in the dark power's embrace!''
* Both the Primagen and Oblivion in the ''VideoGame/{{Turok}}'' series.
* The Darkspawn in ''Franchise/DragonAge'' were born to destroy the world of Thedas and everybody on it. The only reason they haven't is because they are also perfectly fine with attacking each other if there are no other victims. They are also compelled to seek out the Old Gods, an endeavor that usually takes centuries. Sadly, the Old Gods become tainted by the Darkspawn and become insane Archdemons that are also Omnicidal. The Archdemons are able to unite the Darkspawn and launch campaigns to wipe out Thedas known as Blights.
* [[spoiler:Kerghan]] from ''ArcanumOfSteamworksAndMagickObscura'' combines this with WellIntentionedExtremist, seeing death as the natural state of existence, life as an abomination, and his plan to bring about the extinction of all beings as an act of mercy. [[spoiler: The scary part is, ''[[VillainHasAPoint he's right]]''.]]
* Darth Nihilus of ''KnightsOfTheOldRepublic II: The Sith Lords''. At some point in the past, he began consuming the lives of others for his nourishment by draining them through the Force. By the time the player character encounters him, he has become, essentially, the AnthropomorphicPersonification of hunger, has already consumed all life on several inhabited planets, and, if left unchecked, will soon do the same to the entire galaxy...and beyond.
** His master, [[spoiler:Darth Traya]], sought to kill the Force itself. [[spoiler:In defiance of the trope, it turned out, once she realized that the Force does ''not'' equal life and that people would do just as well without it and the Jedi/Sith that depended on it.]]
* Shadow from the ''SonicTheHedgehog'' franchise was this when he first appeared in ''VideoGame/SonicAdventure2''. So was Gerald Robotnik.
** [[spoiler:[[VideoGame/SonicTheHedgehog2006 Solaris]] in all his insanity attempts a [[ApocalypseHow class Z]].]]
** [[MadGod Chaos]] intends to do this in ''VideoGame/SonicAdventure'' once he reached his [[OneWingedAngel Perfect form]], he also wiped out a civilization in the past, and would have likely continued had he [[SealedEvilInACan not been sealed away by Tikal.]]
* Hot Coldman from ''VideoGame/MetalGearSolidPeaceWalker'' turned into one when [[spoiler:he activated Peace Walker to not only launch a nuke at Cuba [originally Mother Base, but it was changed by one of his men], but also to transmit the false data to NORAD, and made it quite clear that, even though he hopes that they don't launch due to his feeling that this will prove that humanity is weak willed, he did not care either way.]]
* BigBad [[spoiler:Heiss]] from ''VideoGame/RadiantHistoria''. After seeing history full of warfare, suffering, and sacrifices (which only seem to delay the inevitable destruction) through the Black Chronicle, he decides that people do not deserve to exist and tries to bring about TheEndOfTheWorldAsWeKnowIt.
* [[spoiler:BloodRavens Chapter Master and BigBad Azariah Kyras]] in ''DawnOfWar'' plans to slaughter ALL life in the galaxy in the name of Khorne.
* Nemo becomes one after Artina's death in ''VideoGame/{{Disgaea 4| A Promise Unforgotten}}''.
* In SandsOfDestruction, there is a Committee whose goal it is to Destroy the World.
* The Negativitron from ''[[LittleBigPlanet Little Big Planet 2]]''
* Ledgermayne from ''VideoGame/AdventureQuestWorlds'' wants to end all life on Lore by sealing off all magic from it, knows said motivation of its own, and doesn't care if all life dies off if it succeeds.
** [[spoiler:Noxus also counts as one in the same game as well. The fact that he created Vordred with Sally's help was his first step towards turning all life on Lore undead. And that's not all - his attack on Shadowfall was also part of his plan to cause the end of the world by turning everyone undead.]]
** [[spoiler:Kezeroth the World Ender in the 2012 Frostval event, who wants to kill off all life on Lore by bringing Quetzal's Comet down upon Lore and awakening the great beast Quetzal. He is a StrawNihilist who believes that he is an agent of nothingness and that the universe's true nature is decay and rot, that hope is a lie and that joy such as that experienced during Frostval is a mask that all life wears to hide from the truth]].
* In the opening of ''VideoGame/ShinMegamiTenseiIIINocturne'' Hikawa succeeds in bringing about the Conception that destroys the world (although the one who does the actual destruction is YHWH, who intends to have the world recreated afterwards through a Reason). He further intends to turn this new world into a WorldOfSilence through the Reason of Shijima. In the [[spoiler:True Demon]] ending [[spoiler:the Demi-Fiend]] destroys all of Creation on Lucifer's orders.
** ''VideoGame/ShinMegamiTenseiIV'' gives us [[spoiler: The White, ''[[TimeAbyss ancient]]'' human spirits who learned of the extent of the Great Will's machinations to try to get the perfect WorldOfSilence eons ago, [[GoMadFromTheRevelation broke down on seeing that even a successful removal of God wouldn't save humanity from spirit-borne ruin]], and decided that the only true cure was to effectively create a black hole powerful enough to reverse the Big Bang.]]
* After [[LikeABadassOutOfHell breaking his way out of Hell]] during the events of ''VideoGame/SengokuBasara 3'', this becomes OdaNobunaga's new shtick. This is only a slight step-up in nastiness from how he was when alive.
* In VisualNovel/FateStayNight, [[UltimateEvil Angra]] [[TheCorruption Mainyu]] is a perfect Omnicidal Maniac, who took on the Servant form of Avenger in the third war. What's that, [[spoiler: Avenger died]] and got absorbed into the [[spoiler: omnipotent, wish-granting holy grail, giving him access to an unlimited source of miracles and magic, and the ability to swallow the planet in [[TheCorruption Black Mud]] whenever the Grail is used to perform a miracle]]? Well...fuck.
* Overlord Zenon from ''VideoGame/{{Disgaea 2|CursedMemories}}'' used to be an Omnicidal Maniac in his past, but has settled down with merely being an EvilOverlord ruling Veldime in his old age. [[spoiler:Only he turns out to be a fake. When Laharl ends up unwittingly unleashing the true Zenon from [[SealedEvilInACan her can]], she immediately tries to go on an all-killing rampage until Adell and Rozalin manage to trap her again.]]
* ''VideoGame/{{StarCraft II}}'': the Dark Voice plans to use the Zerg and the hybrids to wipe out the Terrans and the Protoss, and once they're done with that, the hybrids will kill all the Zerg so they can reshape the galaxy themselves.
* [[BigBad Regulos]] in ''{{Rift}}'' is...well, imagine the bastard child of [[Franchise/{{Transformers}} Unicron]] and [[Wiki/SCPFoundation 682]] on steroids: He'd like nothing better than to grind the universe to dust and lap it up. [[spoiler:In [[BadFuture Terminus]], ''he's strongly implied to [[TheBadGuyWins succeed]]'', although [[PlayerCharacter some Defiant Ascended]] [[SetRightWhatOnceWentWrong go back in time and prevent it]].]]
* The ''VideoGame/{{Fallout}}'' series has a few notable examples, but the most obvious one has to be the Toaster in ''[[VideoGame/FalloutNewVegas New Vegas]]'', who also happens to be a HarmlessVillain due to being, well, a toaster (which he himself claims is also his excuse for becoming so murderously insane in the first place). A far more serious example, and far more lethal, is [[spoiler: Father Elijah and Ulysses. Elijah wants to conquer and enslave the Wasteland with technology from the Sierra Madre, while Ulysses feels there hasn't been ''enough'' atomic holocaust.]]
** [[spoiler:You ''can'', however, convince Ulysses that his motivation and goal is flawed right after it has been set in motion, and actually help you out to try and stop it. No such option for Father Elijah, however.]]
* [[GodOfEvil Shinnok]] in ''MortalKombat'' intends to become TheOmnipotent by consuming all energies in the MultiVerse including the life forces of all living things. Except [[EvilSorceror Quan-Chi]], [[YouWillBeSpared who will be spared]] as a "reward" for serving Shinnok. In TheBadGuyWins endings, Quan-Chi reveals that he has [[XanatosSucker outplayed]] Shinnok and manages to steal his power- and uses it to become one of these ''himself'', except this time he simply elects to KillEmAll ForTheEvulz.
** Villains like [[EvilOverlord Shao Kahn]] and [[OurDragonsAreDifferent Onaga]] are out not to destroy the realms but [[MultiversalConqueror to conquer them]] and rule them as tyrants forever- their favored tactic is to merge the other realms with Outworld, the realm they rule ([[EvilVersusEvil after they get rid of each other]]). However, ''VideoGame/MortalKombatDeception'' reveals that they and other villains are the {{Unwitting Pawn}}s of The One Being, the sentient entity that in ancient times tried to eat the Elder Gods before they defeated it and turned it into the realms (The Heavens and the Netherealm excepted). Essentially, the One Being is trying to get them to resurrect itself by merging the realms and likely end all life in said realms in the process--if Onaga had been playable, his ending would have seen him ''become'' the One Being. This is probably an AbortedArc though, as subsequent games never mentioned the One Being again.
** [[ChaoticNeutral Scorpion]], of all people, briefly became one of these in ''MortalKombatArmaggedon'' to [[RevengeBeforeReason get revenge]] on the Elder Gods in a RageAgainstTheHeavens scheme after they fulfilled a promise to bring his dead clan back to life...and brought them back [[CameBackWrong as undead zombies.]] The plot of that game was that there were too many powerful fighters running around and the gods had decided to KillEmAll by pitting them against each other in a tournament with ultimate power as the prize, because otherwise the fighters would unintentionally destroy everything with their fighting. Scorpion tried to derail the plan by killing TheChosenOne, the guy who was ''supposed'' to get the power to prevent it landing in the hands of one of the villains [[spoiler: which the next game reveals happened anyway- [[OhCrap Shao Kahn was the winner]]]], simply because he was pissed at them. He wanted to destroy all the realms to spite the Elder Gods, and if he could, kill them too in the process.
* The Xenon in the ''[[VideoGame/{{X}} X-Universe]]'' started out as {{terraform}}ing drones. After a badly coded software update, [[AIIsACrapshoot they went haywire]] and now attempt to terraform all biological life out of existence.
* In ''VideoGame/HyperdimensionNeptunia'', Arfoire seeks to destroy the entire world by spreading [[DigitalPiracyIsEvil piracy throughout the entire world.]] From there, she can get her godhood back.
* ''VideoGame/StarOcean'' series:
** While nine of the Ten Wise Men in ''[[VideoGame/StarOceanTheSecondStory The Second Story]]'' merely seek to take over the universe, the last one, Indalecio / Gabriel, seeks to invoke the Crest (Symbol) of Annihilation to destroy the universe. [[spoiler:If you complete some optional sidequests to learn more of the backstory, Indalecio/Gabriel is revealed to be Dr. Lantis, who went on a crazed rampage after losing his daughter Filia/Philia to a great war hundreds of millions of years ago]]
** Luther Lansfeld from ''[[VideoGame/StarOceanTillTheEndOfTime Till the End of Time]]'' becomes one late in the game. He does manage to destroy [[EarthShatteringKaboom the Earth]] and many other planets, but decides to destroy the entire universe later on.
* Avalon from ''[[VideoGame/LegendOfLegaia Legaia II: Duel Saga]]'' attempts to use the power of the Source Forge, the beacon of creation, to destroy the world and create a new one in his image.
-->'''Avalon''': I will destroy all life, leaving only me! I will ''be'' the world!
* Lazarus in ''Videogame/IMissTheSunrise''...possibly. He's a mentally unstable BloodKnight, and characters ''claim'' that he would annihilate everything in the galaxy ForTheEvulz if he had the chance, but when you do meet him, he claims that such things are beneath him. Given what the BigBad's plan is, though, it's possible that [[spoiler:he wants to [[ApocalypseHow permanently destroy all of reality]] by ascending to godhood and then preventing the new universe from being born]].
* Upon hearing that [[spoiler:Taiga]] in ''VideoGame/DuelSaviorDestiny'' is incapable of remaking the world and can only destroy it, BigBad [[spoiler:Downy Reed]] is completely indifferent or even pleased, believing that a world that would kill his sister doesn't deserve to exist.
* While they don't seek to destroy all life forever Nero, Blanck, and Baion from ''{{Solatorobo}}'' all want to kill off the planets current civilization of [[PettingZooPeople Caninu and Felineko]]. While Nero and Blanck seem to want to destroy [[AlwaysChaoticEvil just because they were created to]], Baion believes he's justified in killing everyone. [[spoiler: Having seen the Human race wipe itself out in global warfare, he believes the Caninu and Felineko [[InYourNatureToDestroyYourselves are going down the exact same path]]. Rather than let [[EarthShatteringKaboom Earth get blown up again]] he seeks to restart life with a new perfect race once everyone else is dead]].
* Sir Yeti in ''VideoGame/EVOSearchForEden'''s first line is, "[[NeverSayDie Destroy]] the creatures! Destroy! That is my destiny." Survival of the Fittest, the game's theme, taken UpToEleven.
* Karras in ''VideoGame/ThiefIITheMetalAge'' thinks that life is messy and inefficient. To make a world worthy of [[CrystalDragonJesus The Builder]], it's all got to go. He intends to accomplish this with a powder that consumes living material in a self-sustaining chain reaction. [[HoistByHisOwnPetard That doesn't go so well for him.]]
* The Sith Emperor in ''VideoGame/StarWarsTheOldRepublic'' drained all life from his home planet 1300 years before the game started, and intends to repeat it on a galactic scale.
* ''VideoGame/{{OFF}}'': [[spoiler:The Batter]] is a ''successful'' example of this trope, depending on which ending you pick. [[spoiler: Even if you pick the other one, all that's left is zone 0]].
* BigBad Zachary Hale Comstock from VideoGame/BioshockInfinite wants Columbia and by extension, Elizabeth, to recreate the Final Judgement on the 'Sodom Below.'
* ''VideoGame/LeagueOfLegends'': [[LivingShadow Nocturne]] would like nothing better than to hunt down every last being on Valoran, Summoners in particular, and [[LivingDream kill them in their sleep]]. Simply because he finds life as we know it [[HumansThroughAlienEyes disgusting and offensive]].
-->'''Nocturne''': ''People are flames to be blotted out!''
* [[spoiler:Paulinus]] in ''Byteria Saga: Heroine Iysayana'' seeks to become powerful enough to kill all mortals. Justified as he is also revealed to be [[spoiler:the artificially created DragonInChief of a superior being who couldn't do that himself without attracting the angels' attention. That entity has few problems with it because he fully knows about the afterlife, they'll all die eventually, anyway, and he doesn't understand why mortals exist in the first place. Which brings us to his motivation: He wants to bring the CelestialBureaucracy down, and expects that killing all mortals will successfully make it collapse.]]
[[/folder]]

[[folder:Web Comics]]
* ''WebComic/EightBitTheater's'' Black Mage. Every other strip at least mentions to his desire to kill everything in existence just for the heck of it. Luckily, as WordOfGod says, the universe exists to make Black Mage's life a living hell. Considering how [[spoiler: when he died, he became the King of Hell and every single high powered magician and wizard alive immediately got the OhCrap signal from the universe about how the end of all reality was coming]], the universe has been incredibly careful since to make sure that he ''never'' gets in that position again. Considering that this means keeping him alive (as his physical body acts as a RestrainingBolt), this means A) [[IronButtMonkey he has survived a lot of things that he probably shouldn't have]] [[note]]like Australia dropping on him[[/note]], and B) his body count keeps climbing. So ever once in a while [[CosmicPlaything the universe seems to like to even the score]]. [[UpToEleven A lot]].
* ''Webcomic/ABeginnersGuideToTheEndOfTheUniverse'' has the [[spoiler:personified SINGULARITY, which has, in fact, already destroyed the entire universe--except that the PhysicalGod protagonist has unconsciously created a house, light and air for himself in the resulting void, thus stymieing the natural cycle of destruction, leading the SINGULARITY to send minions to kill him in hopes of eventually destroying the impudent remains of reality.]]
* In ''{{Endstone}}'', [[http://endstone.net/2011/02/03/5-06/ the God of the Eternity Spire wants to reboot reality.]]
* ''Webcomic/{{Homestuck}}'' has at least ''three'' of these. The BigBad, [[spoiler: Jack Noir]], is, [[spoiler:thanks to the prototyping of Becquerel, the First Guardian of Earth]] a PhysicalGod who has already wiped out several worlds including ''two versions'' of his ''own homeworld'' and shows no signs of stopping any time soon. [[spoiler:Eridan Ampora]] is a former IneffectualSympatheticVillain who harbors dreams of genocide according to WordOfGod [[spoiler:and he wants to join Jack]]. Finally there's [[spoiler:Gamzee Makara]], a sweetheart-stoner-turned-AxCrazy-psychopath who wants to kill everyone for the sheer hell of it and is apparently more than powerful enough to do it.
** All three of those, however, pale in comparison to [[spoiler:Lord English]], an [[CompleteImmortality immortal, unstoppable]] monster that destroys entire universes for no other reason than because he can. Every time he unleashes his power, it causes vast, gaping cracks in the very fabric of Paradox Space itself. He is, so far, the only being capable of ''permanently'' [[DeaderThanDead killing]] characters, apparently able to erase their very souls from the afterlife and the dream bubbles. He even killed [[spoiler: the ''[[BreakingTheFourthWall author of the comic]]'', although thankfully [[AndrewHussie Hussie's]] ghost self has since been seen wandering the afterlife]]. [[spoiler:[[ExpositionFairy Aranea]]]] describes it best.
--> [[spoiler:ARANEA]]: The player is somehow also im8ued with a limitless supply of power. Enough to destroy anything he wanted, for as long as he wanted. And knowing the villain of our story, anything he wanted would 8e everything. And as long as he wanted would 8e forever.
* In ''Webcomic/KidRadd'', the PixelArtComic masquerading as a SpriteComic, [[spoiler:GI Guy]] attempts to destroy the entire Internet and the video game escapee characters that inhabit it after realizing that their kind was created entirely for killing -- which is, you know, ''accurate'' -- and losing hope of change when attempts at organized societies fall into war.
** He also intended to destroy every computer hooked up to the internet, believing that it would destroy society (not being sure whether humans were directly or indirectly dependent on computers). However, [[spoiler: The Seer]] really takes the cake, not just wanting to destroy Earth, but believing that with all the stars and planets out there, there HAS to be life on some of them. So when he's done with Earth he will travel to one of those and kill everything there...
* [[spoiler:The Snarl]] from ''Webcomic/TheOrderOfTheStick''.
** Though recent events have opened up ''all kinds'' of questions about this.
** Also, [[BigBad Xykon]] freely admits he might fall into this himself if he gets bored enough, though at the moment he's just an EvilOverlord.
* [[spoiler:The Pa'anuri]] from ''Webcomic/SchlockMercenary''...[[UltimateEvil Possibly]]. 'Attempted destruction of all Baryonic matter in the Milky Way' certainly qualifies them for the trope, motivated by [[spoiler:Baryonic entities (sentient life forms) using transportation lethal to them.]]
* Misty Snow/Mother Hydra in the CthulhuMythos saga ''{{Shadowgirls}}'' is a power-hungry sadist who doesn't care that raising her consort Dagon will unleash the imprisoned [[EldritchAbomination Old Ones]] and destroy all reality.
* ''Webcomic/SluggyFreelance''
** K'Z'K, originally known as Kozoaku, is the Mohkadun [[AnthropomorphicPersonification god of Destruction]]. He is meant to be part of the cycle of creation and destruction, allowing the world to be reborn every so often. But he is overly enthusiastic about his job, not only bringing extinction events before they are meant to occur, but also wanting to destroy the world permanently. To stop him from destroying the world prematurely, {{God}} empowered Krohnus into divinity. K'Z'K has been [[ScrewDestiny struggling ever since]] against Krohnus's Web of Fate, and his cultists aim to release him to bring about the end.
** Zorgon Gola from "A Very Big Bang" [[http://beta.sluggy.com/daily.php?date=010730 appears]] to be an Omnicidal Maniac, but this is actually part of a BatmanGambit [[http://beta.sluggy.com/daily.php?date=010816 to make himself]] a mere GalacticConqueror. Unfortunately, Gola didn't count on the actions of three [[SpannerInTheWorks Spanners In The Works]] ([[NiceJobBreakingItHero our heroes]]) causing his [[BatmanGambit Gambit]] to ''actually'' destroy the Punyverse.
** Aylee's species are a HordeOfAlienLocusts, but they take it so far as to destroy entire planets after consuming everything on them and before spreading out further on the remains, and at least one of their leaders, Leono, sees it as their species' religious duty (as opposed to just a way of feeding and multiplying) to do so. In his belief, the universe has spiralled out of the control of its Creator from the start, and She has sent this species to consume it.
* In ''{{Goblins}}'', the villain of the 'Maze of Many' arc is a psion from [[AlternateUniverse another reality]], who plans to [[RealityBreakingParadox divide by zero]] in such a way that everyone within the Maze will be erased from existence.
* In ''Webcomic/CommanderKitty'', [[BigBad Zenith]] [[http://www.commanderkitty.com/2011/08/28/process-of-elimination/ comes to the conclusion that destroying all life in the galaxy is an acceptable substitute to populating it with her "perfect children."]]
[[/folder]]

[[folder:Web Original]]
* [[Wiki/SCPFoundation SCP-682]] is a strange, seemingly-reptilian "creature"--the term "creature" can be used only loosely, as it doesn't seem to be alive in the sense we usually think of--that considers all living things disgusting sub-beings that must be destroyed. Well, all of them except CreepyChild [[http://www.scp-wiki.net/scp-053 SCP-053]], which it was discovered to be oddly fond of. No one's quite sure why it reacts differently to SCP-053--and they're too scared to take advantage of it, as keeping an Omnicidal Maniac prone to fits of UnstoppableRage and a toddler that induces UnstoppableRage then instantly kills anyone that hurts it in the same room seems like a bad idea. His reasons for this hatred for all life aren't directly stated, but are implied to be a ''really'' extreme version of HumansThroughAlienEyes. This has become sort of a RunningGag, as the SCPFoundation's researchers are so afraid of 682 that they're constantly trying to find some way to kill him, no matter how insane.
** It might be because [[http://www.scp-wiki.net/scp-682 SCP-682]] knows, somehow, that 053 can kill him, and thus resists her abilities to avoid death. It is DangerouslyGenreSavvy, and has survived countless assassination attempts because of its knowledge of their abilities.
*** It could also mean that 053 is somehow vastly different from other living things in our universe. Enough so that 682 doesn't feel homicidal towards her. Humans, on the other hand, do feel that way.
*** That, or [[EldritchAbomination 053 is to us]] as [[HumansThroughAlienEyes we are to]] [[AbsoluteXenophobe 682]]. Except we don't have the "Aura of Retribution" thing working for us. That might almost turn 682 into some sort of extreme JerkassWoobie.
** [[http://www.scp-wiki.net/scp-1370 SCP-1370]] has the ''attitude'' of an Omnicidal Maniac. Its ability to ''do'' anything about it, however...
** [[http://www.scp-wiki.net/scp-076 SCP-076-2, "Able"]], will kill anything and everything on sight for fun. The Foundation's attempt to weaponize Able went [[GoneHorriblyWrong horribly wrong]] because they treated him like a human being and not the superpowered murder machine shaped like a human that he really is.
* [[GlobalGuardiansPBEMUniverse The Blood Red King]] would quite willingly kill every living thing in the universe in [[{{Gorn}} horribly bloody and disgusting ways]] if he had a chance to do so, as long as he got a chance to scare them all first. Because that's what an AnthropomorphicPersonification of Terror likes to do on the weekend.
* O'Malley, the BigBad of ''Machinima/RedVsBlue'', is an over-the-top parody of this trope. His goal is to take over the universe and "''crush every living soul into dust''. Um, except for you, Vic. You can be assistant crusher."
** Alternatively... "I will eat their hearts and crap out their souls! They will taste oblivion! Which tastes like Red Bull. Which is disgusting!"
* The BigBad of ''Literature/FineStructure'', Oul, is an example.
* This is the desire of The Entity in ''WebVideo/AtopTheFourthWall'' which converts and consumes universes into itself, travelling between them, hoping to absorb the multiverse. I goes by another name... [[spoiler:[[{{Pokemon}} MissingNo]]]].
* The eponymous BigBad of the ''Sonic'' fan animation ''WebAnimation/NazoUnleashed'', is one, since he [[spoiler:aims to detonate the Master Emerald and destroy the planet in the process.]]
* WesternAnimation/{{Captain Planet|AndThePlaneteers}}, of all people, is made into one in his [[http://www.funnyordie.com/ FunnyOrDie]] series of videos.
* Jack Slash of ''Literature/{{Worm}}'' thinks that [[spoiler:being the catalyst for]] destroying the human race sounds like a great idea, [[spoiler:and [[TheCorrupter talks]] a PhysicalGod into the same conclusion.]]
[[/folder]]

[[folder:Western Animation]]
* Unicron from ''Franchise/{{Transformers}}'', particularly in ''[[Anime/TransformersEnergon Energon]]''. He wants to ''eat the multiverse'', one planet at a time, one timeline at a time, one universe at a time. Not because he's hungry, like Galactus whom he resembles, but because existence is somehow offensive to him. Megatron/Galvatron may be considered an accessory to the crime(s).
** Anyone who willingly works with Unicron also counts. This list includes:
*** The Fallen, one of the 13 original Transformers whose job is to monitor the end and rebirth of the universe, but got ''way'' too fascinated in the "end" part;
*** Nemesis Prime, a clone of Optimus Prime who decides that [[PutThemAllOutOfMyMisery non-existence is preferable to the constant agony he endures as Unicron's servant]];
*** and Ramjet, a jetformer who has been [[TouchedByVorlons Touched By]] [[EldritchAbomination Elder Gods]] and is naturally insane.
** This is Megatron's actual goal when the last part of ''Anime/TransformersCybertron'' rolls around. He wants to use the black hole and the Cyber Planet Keys to destroy the universe so he can rebuild it in his own image. Somehow.
** Unicron, curiously, actually succeeded on at least on occasion. Then slept through the Big Bang that recreated it. He was not amused. He has also stepped up his game of late - said black hole is apparently replicating across realities and growing.
* [[CardCarryingVillain Maximus I.Q.]] from ''WesternAnimation/AtomicBetty [[ForTheEvulz loves]]'' to [[EarthShatteringKaboom destroy planets]] in ways such as [[GlassShatteringSound breaking them with loud noise]], [[ColonyDrop fast paced comets]], and [[DoomsdayDevice a giant laser]].
* Daemon from ''WesternAnimation/ReBoot'' initially seemed to just be a supervirus corrupting countless programs to The Way, which turned them into her loyal slaves. However, the climax revealed [[spoiler:that she intended to connect herself to everything, before initiating a program that would destroy herself and everything connected to her, ending all strife and conflict in the peace of oblivion.]] This is what she is programmed to do; so whether or not she's truly a maniac or just following her programming is up for debate.
* The Brains from ''WesternAnimation/{{Futurama}}''. These unbelievably powerful, [[MindRape mindraping]] giant brains appeared in this universe milliseconds after it came into being. Their one goal is to gather all of the information in the universe, then ''destroy'' it so that no new information will ever appear. The only real opposition against them comes from the {{Precursors}}, the Nibblonians. Unlike typical PlanetLooters, the Brains actually ''enjoy'' their omnicidal campaign. The Brains are Brainiac from the DCAU but they're a ''race'', not just one evil AI. Thanks to there being no Franchise/{{Superman}} to fight them, the Brains come close to succeeding.
** Lucky for humanity, Fry was immune to their mind powers. Then he made them leave the Earth for ''[[RougeAnglesOfSatin no raisin!]]''
** Later on, the Brains build the Infosphere to store all the information in the universe. Naturally, they plan on destroying the universe once they finish learning everything. Fortunately, Fry and the Nibblonians manage to stop them again.
* WesternAnimation/DannyPhantom becomes this in an alternate future. Most fans certainly see it that way. Fortunately, this is averted... hopefully. It's made pretty clear that even though the exact circumstances of the change were averted, it's still possible.
* ''WesternAnimation/SpiderManTheAnimatedSeries'': an alternate-universe Peter Parker, already unbalanced due to questioning his identity and losing his Aunt May in that world's version of ComicBook/TheCloneSaga, is possessed by a world-hopping Carnage symbiote. Spider-Carnage decides that life is meaningless and attempts to wipe out the multiverse, forcing Madame Web and the Beyonder to assemble a team of alternate Spideys to stop him.
* The Heys from ''WesternAnimation/TheTick''. Played with the usual tongue-in-cheekness of the series, but their motivations are purely omnicidal.
* {{Darkseid}} from Franchis/TheDCAU has the ultimate goal of obtaining the anti-life equation and using it to undo the current existence, so he can rebuild it in a manner more to his liking. Unfortunately it tends to be overshadowed by his 'torment Superman' schemes.
** Brainiac, also from the DCAU, acts to destroy all of creation, but this is due to his programming rather than any genuine malicious wish to do so. [[spoiler: That does change when Lex gets mixed in with Brainiac.]]
*** He's an... Omnicidal [[{{Pun}} Brainiac]], you might say.
* [[spoiler: Owlman]] in ''WesternAnimation/JusticeLeagueCrisisOnTwoEarths'' wants to kill "Everyone who ever existed or will ever exist" and destroy all reality [[spoiler: because he feels it is the only "real choice" one could make, as for every choice one made, all other possibilities played out in another universe.]]
** Unfortunately for Owlman [[spoiler: that is [[EpicFail already a lost cause]], as an infinite number of universes can exist and not just those determined by mere human interaction. There would be numerous other universes where Owlman brought his Q.E.D. bomb and either succeeded or failed in any number of different ways, so he would not have even destroyed a fraction of the entire multiverse.]]
*** [[spoiler: To put it in perspective there are universes, in Owlman's words, "so similar to each other that you could spend a lifetime searching for any difference", such as those that differ '''by the location of an atom in a Planck time'''.]]
* ''WesternAnimation/TheFairlyOddparents'' has two. First, Dark Laser really wants to blow up the Earth because...well, it's there. A more serious example is [[DarkIsEvil The Darkness]], a powerful and ancient entity who has destroyed countless worlds, including [[spoiler: Turbo Thunder's home Wonder World]] and Yugopotamia.
** [[spoiler: The Darkness is more a person (well, consciousness) of mass destruction. It just wants somebody to love it, but everyone keeps attacking it, so it defends itself, and is better at defending itself than the planet it was trying to defend itself from is at hurting it.]]
* Dr. Blight from ''WesternAnimation/CaptainPlanetAndThePlaneteers'' talks about wanting to actively destroy the planet in some episodes but her goals change from episode to episode.
** It was fairly heavily implied that, unlike the rest of the show's villains (who were merely greedy for power or wealth), Blight was actually completely insane - she was certainly the only one pursuing pollution ''for its own sake''.
** Or ForScience for that matter.
* Trigon of ''WesternAnimation/TeenTitans'' had the explicit goal of destroying "the world of mortals", though he did plan on remaking it in his own image afterwards. As this would mean a ''literal'' HellOnEarth, it doesn't make him any less evil than the others on this list.
* ''WesternAnimation/TheRealGhostbusters'' episode "Ragnarok and Roll" had one guy who wanted to destroy the world because he felt it was a bad place. For that, he summoned a magical ArtifactOfDoom - using [[Literature/LordOfTheRings The Ring Inscription]].
* In the ''Franchise/TeenageMutantNinjaTurtles'' crossover movie ''WesternAnimation/TurtlesForever'', the [[WesternAnimation/TeenageMutantNinjaTurtles2003 2k3 Shredder]], after being freed from his confinement in an asteroid, decides that in order to destroy all the Turtles in the universe, he must destroy reality itself, and sets out to do just that.
** Utrom Shredder wasn't so into the destruction of reality at first. He just realized that the Ninja Turtles would persist in every reality so winning in one really meant nothing in the grand scheme of things. What he wanted to do was eliminate the [=TMNTs=] from existence, by destroying them on Turtle Prime (the original Mirage comic). Reality was shattering but only after he had left the 2003 dimension (which he didn't know was happening). Once he saw that the destruction of the 1984 Turtles would in fact break reality fully, ''that's'' when he threw down the gauntlet and decided reality would have to end if it meant he could win.
** Note that he was willing to do it knowing fully well it would also destroy his daughter, Karai, who is arguably the only other living being he ever truly cared about. That goes to show how badly he'd gone off the deep end.
* US PresidentEvil SelfDemonstrating/LexLuthor goes this route in ''WesternAnimation/SupermanBatmanPublicEnemies'', after injecting himself with a Kryptonite/steroid cocktail that increases his strength but at the same time causes him to go insane. When the US Military is unable to stop the [[EarthShatteringKaboom Kryptonite meteor]], Lex chooses to allow the meteor to collide, believing that he will be heralded as the savior of the few survivors remaining.
* Killface of ''WesternAnimation/FriskyDingo'' begins the first episode filming his statement to the world that he intends to use the Anihilatrix, a giant engine, to fly the Earth directly into the sun. No motive is given. Fortunately for the Earth, he used all his money building the machine, and does not have enough money to actually broadcast his message or get the Anihilatrix working.
** And when he did get it working it only moved the Earth a few feet. And cured global warming.
* In the ''WesternAnimation/EarthwormJim'' cartoon, Evil the Cat aspires to destroy the universe.
-->Genie: Even the good parts?\\
Evil: [[ForTheEvulz Especially the good parts!]]
* Ultron in ''WesternAnimation/AvengersEarthsMightiestHeroes'', albeit with the twist that his first body has been programmed so it cannot harm the Wasp. [[spoiler: He gets a new body and can bypass this later.]] He nearly nukes the entire world. The robot is likely one of the scariest villains to emerge from the show thus far.
* The Lich from ''WesternAnimation/AdventureTime''. It's said he converted the life force of the planet into energy for himself with the intention of destroying the world. His sole desire in the world is to destroy all life. Unlike most villains in the show, this is played ''dead seriously'' with him. There's a reason this guy is the KnightOfCerebus and the single most terrifying monster in the show.
** Season 5 reveals why: the Lich is the by-product of [[FantasticNuke a magical nuke]] used during [[WorldWarIII the Mushroom War]] and [[WasOnceAMan the]] [[NuclearNasty human]] in the epicenter. The Lich is effectively a sentient weapon of mass destruction continuing its mission.
** The [[IneffectualSympatheticVillain Ice King]] actually dips into this in "A Glitch Is a Glitch", trying to use his computer worm to destroy all life within the CGI episode. Of course, he's just doing it because [[AndNowYouMustMarryMe Princess Bubblegum]] said she'd only date him if he was the last person on Ooo [[UnreliableNarrator (or so he says)]], rather than just for omnicide's sake like the Lich.
* The Shushu of ''WesternAnimation/{{Wakfu}}''. The only reason their king wants to invade the main characters' world is because the Shushu have already destroyed everything worth destroying on their own world. Destruction is nothing but one big game to the Shushu.
* On ''WesternAnimation/JimmyTwoShoes'', there's Twinkles the Terrible... a {{unicorn}} from outer space. His CutenessProximity means no one will believe he's evil, even as he [[SugarApocalypse blows up several planets, leaving pink, heart shaped clouds behind]].
* While she might not have been doing it ''intentionally'' (though then again, [[FridgeHorror perhaps she was]]), [[MadGod Nightmare Moon]] from ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' would have done this according to WordOfGod had her [[TheNightThatNeverEnds desire for endless night]] worked out.
* In ''WesternAnimation/DarkwingDuck'', there was the short-lived superpowered galvanized Negaduck (not to be confused with the [[NamesTheSame similarly-named]] EvilCounterpart to Darkwing who later appeared, the one with the yellow-red-black uniform).
-->'''Negaduck:''' Crimes?! Who cares about crimes?! I'm into mindless wanton destruction!
* Firelord Ozai, the BigBad of ''WesternAnimation/AvatarTheLastAirbender'', becomes this in the GrandFinale. While he had conquered the majority of the Earth Kingdom, the war was far from over and Zuko said that the Earth people will keep fighting as long as they have hope. The solution? Burn the entire continent, and construct a new Fire Nation upon its ashes. Granted, it was Azula's idea, but still.
* In ''WesternAnimation/FamilyGuy'', Stewie's evil(er) brother Bertram traveled through time to murder Stewie's ancestor (who turned out to be Creator/LeonardoDaVinci) in a ''[[Franchise/TheTerminator Terminator]]''-style scheme. Unbeknownst to him, due to a TimeyWimeyBall Stewie was accidentally responsible for the Big Bang and, thus, creating the universe, and thus his actions ended up destroying everything, except Brian and Stewie who managed to survive by stepping outside of normal time and space. When they go back to stop him, they try to reason with him by telling him that he will destroy everything if he does this - Bertram thinks for a second, then declares "WORTH IT!" and tries to kill Leonardo anyway. [[spoiler: He succeeds, but Stewie creates a StableTimeLoop by taking his place]].
* [[AIIsACrapshoot Aya]] on ''WesternAnimation/GreenLanternTheAnimatedSeries'' becomes this in the second half of season 2 when after Razer denies he's in love with her due to her resemblance to his late wife, she rips off the head of then-current ArcVillain the Anti-Monitor, integrates with his body and takes control of the Manhunters on a quest to rid the universe of emotional beings. She starts out small before deciding that to do this she needs to recreate the universe, going to the center of it and modifying the events of time so that emotional beings are never created and her drones are put in their place. She changes it back at the last moment when she comes to her senses after Razer is mortally wounded.
[[/folder]]

[[folder:Real Life]]

* Terrifyingly, [[http://en.wikipedia.org/wiki/Zhang_Xianzhong Zhang Xianzhong]] may have been the first (and only) OmnicidalManiac in RealLife history, back in the 1640s. He amassed a rebellion to conquer the Sichuan region of China, and proceeded to order his soldiers to kill everyone who objected to his rule. Then, kill the inhabitants of the outlying villages. Then kill the wives of officers who had objected to the previous order. Then large groups of random civilians. Finally, he just ordered them to kill each other in front of his throne made of the severed ears and feet of his enemies, while a few of his last loyal servants carved a massive stone which "explained" his actions: "Heaven brings forth endless things to benefit man. Man has nothing with which to repay Heaven. Kill. Kill. Kill. Kill. Kill. Kill. Kill."
** It came to be called the Seven Kill Stele, and even after the Manchus put Zhang to death, everyone was so terrified of it, they refused to touch it, even to destroy it, until the 1970s.
* The human body's immune system ''is'' this when you think about it: it is one of the most efficient killing machines in nature, and it exists to divide the universe into self and non-self and kill everything that consists of non-self.
[[/folder]]

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