History ApocalypseHow / Class0

* In ''Series/StarTrekDeepSpaceNine'' the entire social and economic structure of Ferenganar is thrown into chaos when Grand Nagus Zek grants women equal rights. Before then they had never been able to speak (unless spoken to), earn profits, leave the house, or even ''wear clothes''. The sight of them doing all four causes enough chaos to disrupt planetary communication and oust Zek as Nagus.

* Depending on your choices in ''[[VideoGame/TheNewOrderLastDaysOfEurope The New Order: Last Days of Europe'', this is a potential outcome to happen to one or several nations, deemed a 'fail state' by the devs. In the worst variants, it has the potential to get ''[[ApocalypseHow/Class2 much, MUCH worse]]'':

* Depending on your choices in ''[[VideoGame/TheNewOrderLastDaysOfEurope The New Order: Last Days Of Europe'', this is a potential outcome to happen to one or several nations, deemed a 'fail state' by the devs. In the worst variants, it has the potential to get ''[[ApocalypseHow/Class2 much, MUCH worse]]'':

* Depending on your choices in ''VideoGame/TheNewOrderLastDaysOfEurope'', this is a potential outcome to happen to one or several nations, deemed a 'fail state' by the devs. In the worst variants, it has the potential to get ''[[ApocalypseHow/Class2 much, MUCH worse]]'':

** If [[Characters/TNOTaboritsky Taboritsky]] wins the Russian Warlord State period, it becomes this for Russia. Taboritsky's method of governing is to essentially turn the entire country into a giant concentration camp against the people that he rules over, and long-term planning is not a concept. He detests money and needing to establish an economy, so his main decision is to establish Mega Corps using the flawed slavery system, which all struggle after his death. He addresses poverty and education by purging them, causing a sharp decrease to their bases. All crimes become equally punishable by death, and as time goes on, Taboritsky grows increasingly paranoid and has many supporters purged as well. All of this combined essentially makes manpower nonexistent. His goals can never be achieved, and since everything hinges on his rule and reputation, his death makes the entire empire quickly collapse into a partially uninhabitable anarchy. Overall, Taboritsky's ideology and governing is so bad that establishing it is akin to nuking the territory he takes control over.

** If [[https://tvtropes.org/pmwiki/pmwiki.php/Characters/TNOTaboritsky Taboritsky]] wins the Russian Warlord State period, it becomes this for Russia. Taboritsky's method of governing is to essentially turn the entire country into a giant concentration camp against the people that he rules over, and long-term planning is not a concept. He detests money and needing to establish an economy, so his main decision is to establish Mega Corps using the flawed slavery system, which all struggle after his death. He addresses poverty and education by purging them, causing a sharp decrease to their bases. All crimes become equally punishable by death, and as time goes on, Taboritsky grows increasingly paranoid and has many supporters purged as well. All of this combined essentially makes manpower nonexistent. His goals can never be achieved, and since everything hinges on his rule and reputation, his death makes the entire empire quickly collapse into a partially uninhabitable anarchy. Overall, Taboritsky's ideology and governing is so bad that establishing it is akin to nuking the territory he takes control over.

* Depending on your choices in ''VideoGame/TheNewOrderTheLastDaysOfEurope'', this is a potential outcome to happen to one or several nations, deemed a 'fail state' by the devs. In the worst variants, it has the potential to get ''[[ApocalypseHow/Class2 much, MUCH worse]]'':

** In the sequel ''After America'' the ripple effect has brought this to the verge of a Class 1 four years later. Mexico is a failed state, the after effects of [[spoiler: the Second Holocaust, Israel's nuking of it's neighbors]] has resulted in the [[BalkanizeMe balkanization of France and Germany]], pirates roam both the Pacific and Atlantic at will as well as [[spoiler: serving as foot soldiers for an Islamic invasion of Manhattan]], While no one is starving in Britain, [[UnfortunateImplications which has avoided it's own Islamic problems by deporting most Muslims and interning the rest]] food and fuel are both rationed and bicycles and horsedrawn carts are more common on the road than cars.

* In ''Fanfic/TheConversionBureauNotAlone'', large parts of South Africa in and outside of Johannesburg have been swept clean of human civilization, the rest of the country is plummetting into [[DayOfTheJackboot fascism]], and the rest of the world ends up deeply scarred by the possibility of inter-dimensional pony conquest, making it a borderline Class 1 example.

* ''VideoGame/FarCry5'' ends, canonically, with nuclear bombs falling on Hope County. Later, in ''VideoGame/FarCry6'', we learn that this was caused by [[HijackedByGanon Pagan Min]] and that the nukes were aimed ''only'' at Montana. The rest of the world is perfectly fine. And ''then'' we learn that the nukes were never even fired, and it was [[AllJustADream just delusions of Joseph Seed]]. The more we learn, the more this game's user score on Metacritic seems justified.

* The small island nation of Genosia was destroyed completely during ''ComicBook/HouseOfM'', and as of now, is unpopulated and in ruins.

* In ''TabletopGame/MillenniumsEnd'', UsefulNotes/TheNineties went horribly wrong. Middle Eastern oil production was crippled in the Gulf War, which also saw exchanges of chemical weapons between Iraq and Israel. India and Pakistan go to war. The European Community is under threat from nationalist fearmongers, separatist terrorists like the Provisional IRA, and the legacy of the Soviet Union's lax environmental practices. Global economies and living standards are tanking. Protests and riots in Japan continue until the military takes control of government operations. The Russian government has lost some of their Soviet-era nukes. It's only a matter of time before the apocalypse gets upgraded to a class 1 or higher.

* This occurred in the (formerly Belgian) [[UsefulNotes/DemocraticRepublicOfTheCongo Congo]] during the [[TheSixties 1960s]]. The country's infrastructure was destroyed in a series of wars and its mineral wealth was stripped by a succession of dictators. There are still manned railway stations in one town that have not seen a train in decades. Land travel is virtually impossible along the Congo river due to fact that parts of the route are either inhabited by AxCrazy marauders or completely overgrown.
* HIV/AIDS, especially in TheEighties and TheNineties but continues to linger in poorer places to this day.

%% This page has been alphabetized. Please add new examples in the correct order. Thanks!

-->--'''Bane''', ''Film/TheDarkKnightRises''

* In the ''Franchise/{{Splatoon}}'' games, the [[TheHorde Salmonids]] were said to have leveled city after city before the advent of modern ink weaponry, and thus at least one Inkling religion considered them [[SignsOfTheEndTimes harbingers of the apocalypse]]. Come ''VideoGame/Splatoon3'', and the player can see this for themself in the form of a Big Run, when the Salmonids invade multiplayer battle venues instead of the standard Salmon Run stages.

* It's stated straight-up multiple times in ''VideoGame/{{Bloodborne}}'', by everyone from Eileen the Crow to random {{mook}}s, that the metropolis of Yharnam is finished. The vast majority of its population has succumbed to the [[OurWerewolvesAreDifferent Beast Scourge]] [[ZombieApocalypse epidemic]] by the time the player character gets involved, and they can only rescue a ''few'' injured and/or mentally-broken survivors from the ruins. The main objective of the game is simply to stop the Scourge from spreading further, [[TheEndOfTheWorldAsWeKnowIt "lest the night carry on forever."]] Loran and Pthumeria also suffered Class 0s in the past; their civilizations were wiped out by the Scourge, but the planet as a whole seemed to carry on. If allowed to spread unchecked, the Scourge would likely cause a Class 2 or Class 3 apocalypse.

* ''LetsPlay/EmpiresSMP'': Season 1 ends this way as a CruelTwistEnding. Jimmy and fWhip trying to create a new Codfather head overloads the machine they were using, and the entirety of the Grimlands is completely destroyed in the explosion. The debris catapulted into the sky lands on the neighboring Empires, destroying the Lost Empire and heavily damaging the Crystal Cliffs. The heat from the blast sparks a wildfire that spreads to the Undergrove and Gilded Helianthia, burning them both to the ground. There's a massive earthquake that cracks the Mezalian Matral Palace in half and tears rifts into the ground, sparking more fires and killing all life in the Overgrown. The water vanishes from the Cod and Ocean Empires, causing its citizens to either die of suffocation or flee for deeper water. While Rivendell was largely spared from the explosion damage, the earthquake was the last push [[SealedEvilInACan Xornoth]] needed to break out of the crystal, and he proceeds to tear the city apart with corruption vines. Mythland was also mostly spared, but was instead overrun by Blood Sheep. In the end, [[spoiler:Scott [[HeroicSuicide commits suicide]] in order to stop Xornoth due to a CantLiveWithoutYou prophecy, Pearl dies as [[SoulJar the empire her lifeforce is tied to]] burns to the ground, Lizzie [[LaserGuidedAmnesia loses her memory]] as a result of ''more'' prophecy issues and leaves the server in confusion, Joel undergoes DeathByDespair after seeing his palace being destroyed (according to WordOfGod)]], and the rest leave their homes either by choice or by force to start over somewhere else. TheMusical adaptation refers to this as "the Rapture"; overall, 11 of the 12 empires have experienced severe damage while [[spoiler:1 in 4 of their rulers have been KilledOffForReal]].

* ''VideoGame/FateGrandOrder'' features Faerie Britain, the setting of the sixth Lostbelt, an AlternateUniverse where TheFairFolk ended up becoming the dominant species rather than humans. Due to the faeries' tendency to [[InYourNatureToDestroyYourselves devolve to infighting]] and the sheer number of [[DyingCurse DyingCurses]] by the losing faeries building up, they have to endure a Calamity that strikes Faerie Britain every 100 years. The heroes end up having to face off against and ultimately defeat a Calamity that threatens to destroy the city of Norwich, and it's implied that Calamities are typically on that scale or slightly larger. There is also mention of a [[ZombieApocalypse zombie uprising]] that destroyed Darlington a century ago as another Calamity.

* Several characters in LightNovel/{{Slayers}} are capable of Class 0 apocalypses. Lina Inverse routinely uses her Dragon Slave, a spell that is capable of reducing cities to rubble (she also has access to [[ApocalypseHow/ClassX4 more powerful magic]]). Rezo the Red Priest was also able to destroy the Holy City of Sairaag with a Mega Brand spell (the most powerful use of that spell by any character).