Questions tagged [apocalypse]

For questions dealing with events during an apocalypse scenario. Do not use for post-apocalyptic settings.

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4
votes
1answer
64 views

How could a civilization survive a continent splitting cataclysm? [closed]

Say the lost continent of Lemuria was real, and was home to an ancient sophisticated civilization that like the Atlanteans, dabbled in high technologies and forbidden magicks. Due to their fatal ...
3
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3answers
141 views

How could zombies infect all in a town [closed]

There is a zombie apocalypse scenario where one zombie appeared in small-town America what would be the best strategy for the zombies to cause an apocalypse. Here is the description of the zombies: ...
6
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4answers
276 views

I need to destroy the Earth. Is this what it might look like?

This is a small but critical part of my story; I need to kill off most of humanity (leaving a 5- or 6- digit number of survivors) and render the planet uninhabitable long-term, but survivable for a ...
6
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5answers
623 views

Could an earth like planet turn into Venus and then back again?

So, I have an Earthlike planet with a healthy biosphere, and I need to completely reset all complex life on it. Near as I can tell, one way to do this is by totally destroying the atmosphere (after ...
7
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5answers
459 views

What would be the most helpful household items in a zombie apocalypse?

We all know the ideas about the "ideal zombie shelter" stocked with food, water, and ridiculous amounts of ammunition, hidden somewhere up in the Rocky mountains far from cities. But what ...
1
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1answer
49 views

Impact of global volcano eruption into artificial structures

A suplement to this question this time targeting human constructions and artificial structures. Imagine that one day all Earth volcanoes has erupted in the same moment. How would running lava, ash and ...
3
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1answer
89 views

Environmental effects of global volcano eruption [closed]

Imagine that one day all Earth volcanoes has erupted in the same moment. What impact would such event has on nature and environment? How would running lava, ash and gases blowing from volcanoes impact:...
5
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2answers
202 views

How to blow all Earth volcanoes in the same time?

I would like to eliminate entire human race, by turning Earth into second, world-sized Pompeii. I'd like to destroy all "habitable areas" so that human population would be effectively ...
4
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1answer
88 views

Can I kill all humans using only volcanoes, erupted ash and magma?

I need to eliminate entire human race, by turning Earth into second, world-sized Pompeii. I need the planet to be burned to the very ground, in ashes. Is this possible at all? Does Earth or Earth-like ...
-1
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3answers
123 views

If a character were to live in a hot climate for the majority of their life, would their core temperature increase?

I'm making a comic about the apocalypse and I have a character who lives in Australia for most of his life. The thing is, global warming has caused Australia to increase in temperature so much, it's ...
6
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3answers
271 views

Kill all humanity, but leave buildings not touched [duplicate]

I need a completely empty Earth. I need: a natural phenomenon, some local or extraterrestrial disaster, some intentional human action or event, to turn the entire Earth into second, world-sized ...
15
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12answers
4k views

How could a mighty Elven Empire be reduced to scattered bands of druidic nature-worshiping aboriginals, vulnerable to Colonization?

I've been laying the groundwork for a New World Campaign based off of works like Powdermage, Greedfall, and Colonial Gothic (and the Witcher- nothing beats the Witcher), and one of the integral ...
5
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8answers
512 views

What could lead to everyone on Earth becoming gay, and the human race facing extinction because they believe they can't reproduce?

I'm interested in creating a (humorous, satirical) science-fiction short story wherein the protagonist repeatedly claims if everyone was gay, the human race would die out. Then (somehow) one day... ...
8
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7answers
961 views

What are the easiest/most suitable fruits and vegetables to grow in an apocalyptic scenario?

My story is set in a sort of apocalyptic world, the main characters live in an old house and they’re too afraid to go out as there’re creatures hunting them. They obviously still need to eat so my ...
4
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2answers
189 views

What would happen to the moon if Earth shattered?

In relation to one of my questions, Earth was destroyed after hit with a weapon that tore the planet apart by magnetic and gravitational force which does leave a large segment left floating. The rest ...
3
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1answer
116 views

What is the climate like 200 years after nuclear war?

I know there would probably be an ash-based cooling period, but, how long would that last and then what happens? Is the post-apocalyptic desert even possible in a post-nuclear war world?
1
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1answer
154 views

Can you survive in a pub cellar for a week? [closed]

This is for research for a kaiju horror story. I'm toying with it being set in an English pub cellar (like that of a Wetherspoons) as the surface is crawling with newly emerged kaiju, the plot ...
11
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8answers
2k views

How can we make a one-way radio?

My story is set in an apocalyptic Earth (occurring during the story), and the main character is stationed out alone on a sea fort in the middle of the ocean. He receives a radio call/signal from a ...
0
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1answer
95 views

How to “burn” Oxygen (Exterminatus) [duplicate]

A year ago, I asked on the possibility of Teller Nuclear Bombs, where the bomb is hot enough to fuse oxygen and cause a runway reaction that destroys Earth by using the air as "fusion material". This ...
0
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3answers
205 views

How long could a city that is completely cut off sustain itself? [duplicate]

I have a city, and let's say this city gets cut off, Berlin '45 style. Nothing in, nothing out. Classic siege. I want to be more specific than that though: Suburbs won't be in it, it will be all the ...
3
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1answer
68 views

What signs of nuclear explosion in SLC can be seen from Lincoln Highway?

First thing: I don't know if it's the right stack to ask this question, so I'm sorry if it's not. I'm writing an adventure for an apocalyptic RPG session. One point of the plot is a detonation of 100 ...
3
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3answers
164 views

Would it ever be theoretically possible for future humans to prevent the sun from increasing in luminosity to the point of killing all life?

I am currently brainstorming a hard (like the hardest possible; everything that occurs in the story must at least be theoretically possible) sci-fi story which will take place far in the future. I don'...
3
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3answers
262 views

Which human-made monuments would still be standing thousands of years after an apocalyptic event? [duplicate]

It has been several thousand years since an apocalypse happened. The cause was some kind of explosion, be it nukes or a extinction-event meteor. Humans have persisted, as they do, and have effectively ...
2
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1answer
142 views

To what extent would a 21st Century Industrial power collapse under an airborne HIV-like virus? [closed]

In an alternate 21st Century Earth, an airborne strain of HIV, or a brand new airborne virus that causes the same symptoms of HIV evolves. The new Super-HIV virus retains the ability to transmit by ...
0
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1answer
89 views

Land and sea are infested by giant carnivourous squid/crab things. How do I survive? [closed]

So, recently, a bunch of Kraken eggs have hatched, bringing them back form a few centuries of extinction for unknown reasons. Also, turns out that when their sea-based population gets too high, some ...
-2
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1answer
138 views

How would Europeans fend themselfs in a Zombie apocalypse? [closed]

Most of zombie apocalypse movies, series, comics, etc. are set in the United States, but how an outbreak look like in European countries? Would it be different at all?
3
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7answers
248 views

If an evil AI has access to the Internet, what are the options that it has to kill humanity? [closed]

Let's suppose that a mad developer made an evil Artificial Intelligence and gave it access to the Internet (normal net, dark net, anything). What are the options that it has to kill humanity with that?...
5
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5answers
506 views

Realistic powers in an apocalyptic/post-apocalyptic setting

In most apocalyptic settings(specially those with a zombie-kind of plague) the main character(s) only have very mundane means to deal with their problems and those always have a catch: any gun they ...
5
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4answers
203 views

Why can't our self-replicating message in a bottle stay in Sol?

Suppose we knew of an extinction level event in a few decades, and through a large Manhattan Project-type effort humanity manages to construct a von Neumann probe with a copy of all human knowledge. ...
13
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10answers
590 views

How to make FTL-technology an narratively interesting suicide-pact-technology?

Building my sci-fi setting deciding what's the in-universe answer to the Fermi-paradoxon, the reason why the universe still seems to be empty of K3 civilisations despite its age, has been quite ...
1
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3answers
203 views

Which domestic animal would pose the greatest threat to humanity during zoopocalypse?

Set in the modern days, one night the sky is suddenly lit up in a mysterious bright blue glows that fades off almost immediately. It seems that somehow the event caused a mutation in one of the ...
5
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7answers
356 views

Citywide Abandonment of Law Enforcement at World's End?

Building out a place less than 100 years in the future where the world is finally in agreement that it's coming to an end, in about 10 years or less. The air is trash, high government people are in ...
3
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3answers
185 views

Tetrodotoxin: the end of the biotic era?

Tetrodotoxin (TTX) is a potent neurotoxin and extremely toxic. The Material Safety Data Sheet for TTX lists the oral median lethal dose (LD50) for mice as 334 μg per kg. For comparison, the oral LD50 ...
2
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2answers
132 views

How long until land life can return after the impact?

So, it finally happened. The Earth was hit by a comet, and anyone outside of a research station at the bottom of the Atlantic is now dead, or dying. So, here's what we need to know: How big would a ...
-1
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2answers
110 views

Is it possible, with modern technology, to hold a small planet in place? [closed]

In one of my universes, Humanity found a so-called "world anchor" on the Moon. They removed the anchor and returned to Earth. A few days later, the Moon exploded and a planet about the size of Mars ...
5
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4answers
109 views

Genetic engineering to cure a disease leading to a worldwide apocalypse - how plausible is it? [closed]

I'm planning on writing a story in a post-apocalyptic world where normal humans are hunted by genetically modified predators, both human and otherwise. However, I first actually need to create this ...
-2
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4answers
345 views

The moon will fall to earth in 100 years, how fast is the asteroid that knocked it down?

We have at most 100 years to abandon earth. The 10-km asteroid which killed the dinosaurs has hit the moon head-on instead. As a result, the moon has slowed down and it’s orbit will decay by 400,000 ...
12
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5answers
1k views

How might people try to stop the world becoming a rogue planet?

I'm working on a story about Earth or an Earth like planet with current or very near future levels of civilisation and technology drifting or speeding out of the solar system. Currently my method for ...
3
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9answers
347 views

Why might someone be the last person alive in the galaxy? [closed]

I'm writing a science fiction story about a man who has to rebuild civilization from the ground up after all intelligent life in the galaxy is destroyed. (Using gene samples, seed banks, etc.). But I ...
7
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18answers
3k views

How does an alien race from a dying world annihilate most of humanity to colonize the planet for themselves? [closed]

The Stackexhangerians live on a habitable, earth-like planet near Alpha Centauri. Problem is that their world is dying. Let's say it was attacked by yet another race of hostile aliens, and most of ...
9
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14answers
4k views

What is the most REALISTIC cause of a worldwide catastrophe/apocalypse in the near future? (next ~100 years) [closed]

Trying to figure out a post-apocalyptic scenario and looking to stay somewhat within the realm of possibility. Given how tech levels MIGHT be in a 50 years, what would you say would be the most likely ...
4
votes
3answers
316 views

Would measles make a good apocalypse?

Let's say terrorists wanted to release a bioweapon that could deal with most of the world's third world population, and they developed a chimera disease that was essentially the measles, but with ...
-1
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2answers
118 views

The World of Coa, Cosmic Rays, Skynet, and Solving the Pig Apocalypse [closed]

Coa The world of Coa, filled with humanoid species, has been at peace for centuries. Following the unification of the species under the governance of Mother, all military systems have been forsaken. ...
2
votes
1answer
205 views

How big would an asteroid have to be to destroy 99.9% of the human population? How would the remaining survive? [closed]

Let's say that a mega-asteroid is heading towards Earth. I want it to destroy essentially the entire population except maybe a few million people around the world. Now, I know that for an asteroid of ...
6
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3answers
255 views

How much damage could a complete loss of technology cause?

I'm working on an idea for a story. It takes place in the somewhat distant future, say 200-300 years. Some time between now and then, an event occurs which causes all computers to simultaneously fail. ...
16
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6answers
3k views

2 weeks and a tight budget to prepare for Z-day. How long can I hunker down? [closed]

tl/dr: The zombies are coming. The first will "show up" in two weeks. I have about $3000 to prepare and my plan is to hide in my home for as long as possible. I need to secure my house, buy ...
9
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7answers
3k views

What is a reasonable time for modern human society to adapt to dungeons?

TLDR: how long would it take modern day humans to adapt to an incident where dungeons appear on earth and spits out monsters? I am writing a fantasy/apocalypse novel set on modern day earth. One day,...
0
votes
1answer
446 views

How long would it take for society to rebuild itself? [closed]

Humanity creates a new technology that discovers these strange crystals (on Earth) that produce a little bit of electricity. There's now a race for mining them, and the whole world is going crazy over ...
24
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10answers
12k views

Could human civilization live 150 years in a nuclear-powered aircraft carrier colony without resorting to mass killing/ cannibalism?

An un-treatable virus starts infecting and killing people. Societies are on the brink of collapse, and it is decided the best way to save the most amount of people is to move everyone who can fit into ...
3
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2answers
190 views

Deadly virus going extinct - “grey goo” a solution?

With the evolving global warming and thawing of permafrost, an ancient deadly virus begins to spread from Siberia across Eurasia, affecting domestic animals first and mutating quickly onto the rest of ...

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