History ApocalypseHow / Class2

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* Mass Extinction-level events would certainly count as high-level class 2's; events such as the Cretaceous-Tertiary (K-T) event, which among others killed off the dinosaurs. Or the great extinction event ever, which was the Permian-Triassic event, which killed off approximately 90-95% of ''all life on earth''. It's not for nothing that archaeologists, who aren't a profession usually given to mass hyperbole, refer to it as '''''The Great Dying'''''.

* The freeware game ''{{Iji}}'' begins with a vast majority of all life on the planet blown to bits, you're job is to try to save the remaining life from being blown into even tinier bits.

* ''{{Mother 3}}'' has an interesting variant of this, balancing between Classes 1 and 2. [[spoiler: The population of Nowhere Islands consists of the few who escaped a world-wide self-destruction. Most likely, they could rebuild society as it was (given they deliberately pick not to), making this sort of Class 1, but they choose to follow a simple lifestyle to avoid repeating the past, rendering this into a semi-voluntary Class 2.]]

* Mother3 has an interesting variant of this, balancing between Classes 1 and 2. [[spoiler: The population of Nowhere Islands consists of the few who escaped a world-wide self-destruction. Most likely, they could rebuild society as it was (given they deliberately pick not to), making this sort of Class 1, but they choose to follow a simple lifestyle to avoid repeating the past, rendering this into a semi-voluntary Class 2.]]

* ''Dies The Fire'' and the other {{Emberverse}} books by [=~S. M. Stirling~=], where a mysterious event causes all recent power sources to stop working at all (electricity, steam engines of any useful efficiency, gunpowder, etc.). About 95% of humanity dies off in the first year from starvation and lack of knowledge on how to survive in primitive conditions. Another large percentage of what's left dies off once cannibalism is no longer an option due to lack of other humans. By the end of the first book it's clear humanity is going to survive -- most remaining threat comes from would-be warlords and despots, who want to enslave rather than kill -- but the cultures that are springing up aren't precisely what you'd expect.

* The [[http://en.wikipedia.org/wiki/Toba_catastrophe_theory Toba Catastrophe]] is an event that may have happened about 75 thousand years ago, when a supervolcano reduced human population to 10,000 individuals total. There's a lot of tantalizing evidence that this may have happened, but no absolute proof.

* The world created by Tsutomu Nihei. Lets list it out

* The "Crucible Of God" scenario in ''VampireTheMasquerade''[='=]s final supplement, ''Gehenna'', ends in this (if the [=PCs=] ''win''), with about 90% of the Earth's humans depopulated (and corresponding numbers of most other life).

* The "Crucible Of God" scenario in ''VampireTheMasquerade's'' final supplement, ''Gehenna'', ends in this (if the [=PCs=] ''win''), with about 90% of the Earth's humans depopulated (and corresponding numbers of most other life).

* Mankind was kicked back to the stone age 3.000 years before the begining of ArcTheLad, [[spoiler: Arc 2 ends with ''merely'' a class 1 extinction]] [[PlayerPunch you can hate the writters for this]]

** The implied nuclear war happened between the first and second movie. The first took place in a dystopia, but civilization was still intact.

* ''SkiesOfArcadia'' has a backstory that includes a Class 2, although by the time the game actually begins, enough centuries have passed that civilization has made its way back to a rough analog of steam technology with electricity in [[DecadeDissonance a few scattered places]].

* 'DoctorWho'' --

** Stirling's ''Peshawar Lancers'' accomplishes much the same thing with a cometary impact that destroys industrial Europe and the eastern United States in the late 19th century, setting the stage for a {{Steampunk}} 21st century where the British Raj in India, an ascendant Japanese Empire, and the Empire of Brazil are the dominant world powers. France is a shadow of its former self and Russia [[spoiler: is controlled by a EldritchAbomination-worshipping death cult]].

** Stirling's ''Peshawar Lancers'' accomplishes much the same thing with a cometary impact that destroys industrial Europe and the eastern United States in the late 19th century, setting the stage for a {{Steampunk}} 21st century where the British Raj in India, an ascendant Japanese Empire, and the Empire of Brazil are the dominant world powers.

** Stirling's ''PeshawarLancers'' accomplishes much the same thing with a cometary impact that destroys industrial Europe and the eastern United States in the late 19th century, setting the stage for a {{Steampunk}} 21st century where the British Raj in India is the dominant world power.

* ''Mother3'' has an interesting variant of this, balancing between Classes 1 and 2. [[spoiler: The population of Nowhere Islands consists of the few who escaped a world-wide self-destruction. Most likely, they could rebuild society as it was (given they deliberately pick not to), making this sort of Class 1, but they choose to follow a simple lifestyle to avoid repeating the past, rendering this into a semi-voluntary Class 2.]]

** In "Day of the Moon", [[spoiler:we learn that the Silence have occupied the Earth since the age of fire and the wheel. Canton Delaware and the Doctor trick the Silence into post-hypnotically ordering their own destruction through a message in the 1969 moon landing. As there are probably remote corners of the Earth where people haven't seen the moon landing videos, it's unlikely to be a Class 3.]]

** In "The Parting of the Ways", the Daleks killed off every human on board the [=GameStation=] apart from the Doctor and Rose, and firebombed the Earth, shifting its continents, making it ''at least'' a Class 2.

* The [[SetRightWhatOnceWentWrong entire reason]] why the time traveler in the UnitedStatesOfAmeriwank visited George Washington in the first place.