History Main / PlanetEater

* ''VideoGame/ChaosRings'': The Qualia seeks to destroy [[SpacetimeEater spacetime itself]].
** In ''Videogame/ChaosRingsIII'', The Entity is a massive beast that drains entire worlds of their lifeforce. It is a predator and planets are its prey. [[spoiler:Even worse, it's not a unique creature -- its true reason for visiting Marble Blue was to lay its egg.]]
* ''Franchise/SonicTheHedgehog'': The franchise's GreaterScopeVillain, THE END is described as a consumer of worlds. This is the entire reason it was made a SealedEvilInACan in the first place by the Ancients, who lost their own world to it and barely managed to stop its attempt to do this to Sonic's world, and what it intends to resume being once freed, starting with the very planet it was denied last time.

* The final boss of ''VideoGame/Persona3'', [[spoiler:Nyx, alias Pharos and Ryoji]], [[AllThereInTheManual according to supplementary material]], is actually an ancient alien being called a World Eater or Star Eater (the words are the same in Japanese), and no prizes for guessing what happens if you don't stop it.

** Unicron is the other TropeMaker,[[note]]ComicBook/{{Galactus}} is the other[[/note]] starting with ''WesternAnimation/TheTransformersTheMovie'' (1986), where his first appearance doubles as his [[DoomedHometown first meal]] and the animated film's opening scene. He goes on to devour two of Cybertron's moons containing the hidden Autobot bases as well (well, one and a half, technically, since they [[DetonationMoon desperately blew up the second one]] while he was still eating it to try and stop him. [[NoSell It didn't even scratch him]]). He is a "eats the whole planet outright"-style Planet Eater. ApocalypseWow! Notably, however, he deigns to eat Cybertron itself once Galvatron [[TheStarscream tries to betray him]], instead choosing to assume his [[HumongousMecha robot mode]] and tear apart the planet with his bare hands just to prove a point.

* ''WesternAnimation/SilverHawks'' had an episode actually called "The Planet Eater".

** Then Marvel introduced Galacta, Galactus' estranged daughter. She has the same cravings her dad has, and is ''capable'' of devouring planets, but she keeps this urge in check by working as a superhero, feeding on malevolent forces of energy (which would be destructive if left unchecked). In between those feedings, she spends a lot of time trying to control her insatiable hunger by eating bacteria, mostly because anything more filling and she might go on a feeding frenzy that would destroy the world. [[spoiler:However, she's pregnant, and her baby has the same cravings even now, while still in her womb.]]

[-[[caption-width-right:299:How many chomps does it take to get to the center of a planet? The world may never know...[[note]]or live to tell it.[[/note]]]]-]

* Unicron from ''Franchise/{{Transformers}}'' is the other TropeMaker,[[note]]ComicBook/{{Galactus}} is the other[[/note]] starting with ''WesternAnimation/TheTransformersTheMovie'' (1986), where his first appearance doubles as his [[DoomedHometown first meal]] and the animated film's opening scene. He is a "eats the whole planet outright"-style Planet Eater. ApocalypseWow! Depending on continuity, he's also more evil than Galactus: as a [[GodOfEvil dark god]] in a [[OurGodsAreDifferent crunchy robot shell]], Unicron doesn't actually ''need'' to eat anything. He just considers the mere existence of [[strike:life in]] the universe to be a personal affront against him, and some continuities make it clear that he personally devoured ''[[SpacetimeEater all of reality and creation]]'' at least once. Then the Big Bang happened while he was sleeping and he woke up annoyed [[HereWeGoAgain he'd have to do it all over again]]. It's even more disturbing because Unicron ''[[MonstrousCannibalism is a mechanical planet himself]]''. Incidentally, he is [[SuspiciouslySpecificDenial most definitely not]] to be [[CaptainErsatz confused with Galactus]] (although Marvel may have had a hand in ''The Transformers: The Movie'', and was publishing the ''Transformers'' comic at the time).

* Unicron from ''Franchise/{{Transformers}}'' is the other TropeMaker,[[note]]ComicBook/{{Galactus}} is the other[[/note]] starting with ''WesternAnimation/TheTransformersTheMovie'' (1986), where his first appearance doubles as his [[DoomedHometown first meal]] and the animated film's opening scene. He is a "eats the whole planet outright"-style Planet Eater. ApocalypseWow! Depending on continuity, he's also more evil than Galactus: as a [[GodOfEvil dark god]] in a [[OurGodsAreDifferent crunchy robot shell]], Unicron doesn't actually ''need'' to eat anything. He just considers the mere existence of [[strike:life in]] the universe to be a personal affront against him. It's even more disturbing because Unicron ''[[MonstrousCannibalism is a mechanical planet himself]]''. Incidentally, he is [[SuspiciouslySpecificDenial most definitely not]] to be [[CaptainErsatz confused with Galactus]] (although Marvel may have had a hand in ''The Transformers: The Movie'', and was publishing the ''Transformers'' comic at the time).

* ''Website/SCPFoundation'': There is an SCP capable of this, but most scientists aren't even aware of it. [[spoiler:It's [[http://www.scp-wiki.net/scp-2317 SCP-2317]], and only O5 personnel are fully aware of it. Why? ''There is no way to stop 2317 once it awakens'', with the "containment procedures being just an EmptyPromise to keep from a widespread panic.]]

* The new Borg Cube from Creator/PeterDavid's ''Franchise/StarTrek'' ExpandedUniverse novel ''Before Dishonor''. [[spoiler:It [[PlutoIsExpendable eats Pluto]]. (Just before it becomes moot, it was revealed that it had been re-planetized by the time of its destruction.)]]
** And the Black Mass from the ''Literature/StarTrekNewFrontier'' books, which eats planets and then has their suns for dessert.
** In the ''Star Trek: The Next Generation'' novel ''Vendetta'', the last survivor of an alien race assimilated by the Borg finds and activates a fully-powered final-design Planet Killer (the one from the Original Series episode "Doomsday Machine" is revealed to have been a prototype) that also holds many of the minds/souls of the race that built the Planet Killers to fight the Borg. They take it on a rampage of revenge against the Borg, destroying many Cubes while also devouring several worlds for fuel, including a planet in the Tholian home system.
* This was the focus of one ''Literature/TheStainlessSteelRat'' novel.
* It's not alive, but the gigantic Green Sun from ''Literature/TheHouseOnTheBorderland'' ''consumes'' every planet in the solar system, and the sun as well.
* The Roar from ''The Silver Sequence'' is a member of a species that eats planets, or at least all the life on them.
* The Forerunners in ''Literature/TheHistoryOfTheGalaxy'' series feed on ''all'' forms of matter from space dust to planets. They are not particularly large but are able to breed (through mitosis) at tremendous rate after eating. The Forerunner Crisis occurred 3 million years ago, when a swarm of these low-intelligence creatures was moving through systems attracted by starlight and leaving only stars with no planets in their wake. They were finally stopped by a species-wide HeroicSacrifice of a [[{{Precursors}} Precursor]] race. One of the novels reveals that the Forerunners are, in fact, [[spoiler:creations of an EnergyBeing, designed as its vessels. They were created with prototype [=DNA=] molecules. Some of them died on various planets, resulting in {{Panspermia}}. They weren't designed to go crazy, though]].
* In ''Literature/{{IT}}'' by Creator/StephenKing, the titular monster claims that it is "the eater of worlds." We're only shown it eating children, but considering what almost happened in the end...[[spoiler: It is female and she lays eggs. Hundreds of them. We're lucky for Ben and his cowboy boots.]]
* In Creator/KeithLaumer's ''Literature/{{Retief}}'' story, "The Garbage Invasion", the [[ExtremeOmnivore Basurans]] want to take over the paradise planet of Delicia so they can eat it, the way they did their home planet.
* The organisms in the book ''Moonseed'' by Stephen Baxter. They are a type of (probably) naturally-occurring GreyGoo that normally feeds on protoplanetary disks and eventually builds a huge "hive" to move on to the next young system, but if they're stuck in one system for whatever reason they're quite capable of eating a fully formed planet.
* The ''Series/DoctorWho'' novel ''Sick Building'' features a Voracious Craw, a giant worm-like creature which devours everything it can on the planets it comes across, leaving behind only bare rock.
* The ''Literature/ChooseYourOwnAdventure'' spinoff ''Space Hawks'' had multiple examples. One book has the Cephids, a literal HordeOfAlienLocusts who envelop and devour whole planets. Then there's Nemesis, a [[GenericDoomsdayVillain vaguely-developed ultimate evil]] who appears in the book actually called "The Planet Eater".
* Creator/MartinGardner's "{{Literature/Thang}}": The titular creature is large enough to grasp Earth between two fingers. It clears off all water and ice before chewing the planet, core and all. It, in turn, is also eaten by a planet-eater eater.
* ''Literature/MercyThompson'': The River Devil is a snake-like demon that plans to consume earth. The more it consumes, the bigger it gets, and it eventually plans on growing so large it can consume the world.

* ''Anime/GodzillaPlanetEater'' has King Ghidorah, Godzilla's famous arch-nemesis and the eponymous planet eater in the title. Ghidorah in this continuity is a massive, immortal, indestructible energy being from another dimension that uses gravitational powers to eat planets. Ghidorah devoured many planets over the expanse of time he's been around, and almost succeeds at eating Earth.

* One ''ComicBook/{{Deadpool}}'' storyline featured Id, the selfish moon of Ego, which wasn't a planet eater, but rather a planet ''snorter''. It would crash into populated planets and then snort up the remains like drugs.

* In the ''TabletopGame/YuGiOh'' game, there's a high-Level Synchro Monster called [[http://yugioh.wikia.com/wiki/Star_Eater Star Eater]]; if its name is any indication, it takes this Trope up one notch further. (Given how powerful it is, it's possible; it could override the effect of Number 9: Dyson Sphere.)

[[JustForFun/LousyAlternateTitles This would have been called]] "[[{{Pun}} World Hunger]]", but [[DudeNotFunny that's a real life problem with real life consequences]]. [[EveryoneHasStandards We guess.]]

* ''Franchise/SonicTheHedgehog'':
The franchise’s GreaterScopeVillain, THE END is described as a consumer of worlds. This is the entire reason it was made a SealedEvilInACan in the first place by the Ancients, who lost their own world to it and barely managed to stop its attempt to do this to Sonic's world, and what it intends to resume being once freed, starting with the very planet it was denied last time.