Questions tagged [alternate-worlds]

For questions about worlds other than Earth that are significantly different. This could be a water, ice, barren or other planet. For questions about planets similar to Earth with specific differences use the *earth-like* tag.

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5
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1answer
135 views

How much further could ship-based radar see on a flat world?

On our spherical planet, it is highly advantageous for modern navies to have airborne radar, because it can seem much further than even the best ship-based radar, simply due to the greater distance to ...
2
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1answer
74 views

What would the lakes of a planet with larger glaciers look like?

** This question is making the assumption that if a planet with a similar size and atmosphere of Earth is colder and has longer nights, it will have larger and more numerous glaciers. If this is not ...
3
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1answer
78 views

How would my world connect to Earth? [closed]

I'm building a world for the novel I'm writing (called Aroura) and it's a separate world from Earth. There are three tribes, the dragons, the elves, and the humans. My heroine, Galaxy, finds out she's ...
3
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2answers
89 views

Would categorizing planes of existence be considered dumbing down or enriching when it comes to worldbuilding?

The world that I'm making draws strong influence from a multitude of religions, mythology, and folklore, and that extends to the planes from occult beliefs. These planes are the Physical Plane, Astral ...
4
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3answers
99 views

What adaptations would help an animal feed on mucosae that grow on the ground?

What adaptations of the mouth or digestive tract would help a creature to collect and consume mucosae (mucus membranes) that grow over the ground? The membranes have normal proportions and properties, ...
4
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1answer
259 views

Can ravens be trained to give instruction to guide people in the dark?

The world is in total darkness, moving slow and days are longer than years (the planets rotates around the sun in 5000 earth days and rotates around itself in 50'000 earth days) One day is longer than ...
4
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1answer
106 views

Two Worlds tethered together - how would the forces affect people on the planets?

^ Not to scale Assumptions These worlds are engineered. So some aspects of the worlds can be manipulated. Equal Earth-sized planets. Tether attaching them is infinitely strong. Their separation is ...
2
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1answer
67 views

Effect of lower average temperatures on the tropical savannahs and deserts of a planet

I have a nagging question that has been eating away at me since I am figuring out the biomes that are present in the world that I am building. For all intents and purposes this world is basically an ...
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3answers
141 views

A Timeline for the discovery of Alien life

Set Up The Story itself is suppose to be a Short Animated Movie. The Short goes through the Timeline of the Discovery. Kind of like a Slide Show, just more CG. The Timeline It all began on October ...
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2answers
128 views

Does this model of atmosphere sounds plausible enough?

My world is that of a humongous cliff and pretty much nothing else. I was unable to be a flatlander so I justified it by making a humongous alien artifact and jabbing it into a polar region of a gas ...
4
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2answers
134 views

How to build a massive canal system with the aid of limited magic that does not substantially affect anything else?

Previously I have asked about my desert world Skara Could canals solve H G Wells Martians water shortage problems? To recap: For current purposes such a world would have gravity and atmosphere ...
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2answers
170 views

Could Giant Bats Fly with Giant Pterosaurs?

Last year, the Adult Swim program Primal treated us to perhaps the most Halloweenish episode yet, "Terror Under the Blood Moon", in which our two unspoken protagonists--the caveman "...
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1answer
172 views

The Serina Series: Episode III: Pterosaurs

Let's take a different route and not take the Serina route using a modern species. Today, we're looking at pterosaurs. But considering that pterosaurs had ruled the skies from the Late Triassic to ...
2
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2answers
164 views

The Serina Series: Episode II: Crocodilians

In the first episode of this series, Cats, I asked if it's possible for all 600 million house cats to evolve different niches if they were the only amniotes in a terraformed world. Needless to say, ...
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2answers
120 views

Can time travel result in another person? [closed]

One of my characters goes back in time (and to an alternate realm) by sixteen years, then returns to her original realm a year before she left (so after spending fifteen years in the alternate world), ...
12
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6answers
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Organism that can produce water on its own (possibly from air?) not requiring a water source. Is it plausible and if how?

I have thought of a sort of desert planet that has a atmosphere pretty similar to earth and with gravity a little lower which has little to no water source and most of it is empty dry wastelands. I ...
8
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4answers
277 views

Plants Without Air

On a distant world, the atmosphere is different than ours - there is no oxygen but a high level of C02 like on Mars or the early Earth. This planet is otherwise similar to Earth but slightly warmer. ...
2
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2answers
128 views

What might make one specific area of a sea calmer than the rest?

This may very well be an easily answered question, in which case I apologize for the lack of challenge, but in all honesty I’m not sure where to start in figuring this out. I have a large sea. It sits ...
7
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6answers
2k views

Grappling hook which attaches to almost any surface and is actually alive, is it feasible?

wondering the mechanism of how a grappling hook would be able grip onto most surfaces without missing the hit or sliding off. in video games grappling hooks are ropes or chains which when thrown onto ...
16
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9answers
3k views

Could a world with a extremely bright night sky exist?

How could an Earth-like tidally locked planet with no Moon have a bright and livable night sky? The bluish night sky should look like this: But it should be 1% as bright as Earth's day sky and ...
3
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1answer
152 views

The chosen one is destined to defeat the devil [closed]

Legend says the chosen one will be able to defeat the devil without fighting it. Over the years many brave adventurers have tried and miserably failed taking down the devil with various plans and ...
6
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5answers
218 views

Saving the world by saving an entity

The world is at danger because the death of one singular entity called heart of the world is dying. Copyright 2014-2020 PeteMohrbacher The question is how do I link the death of the heart of world to ...
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4answers
133 views

Life points to live again

Life points are creatures spawning in random places around the world, they grow to the size of an apple and resemble hearts made of crystal of various colours. They get their names from the ability ...
22
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2answers
2k views

Can you naturally grow houses?

I'm Worldbuilding, and in my world, people can grow houses from seeds. My world is not a Fantasy one. Could this theoretically work, and if so, how? (Images by Finnian MacManus) To start the growth ...
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2answers
160 views

Can you combine chromatophores with exoskeleton

I've got an idea of an alien organism that is a powerful predator that shares its environment with extremely intelligent, strong, and dangerous apex predators, and so it evolved an exoskeleton. Its ...
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7answers
2k views

Humans, except they always find the right solution to the wrong predicament [closed]

Two mothers say a baby is theirs, simple solution, split the baby in two so they bot get half! Lost your family? Find a new one! Your husband cheats on you with your friend? Cheat on him too with your ...
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0answers
97 views

How easy would reunification be after Second American Civil War? [closed]

So in a story series I've been writing, it is set in an alternate 21st century where the United States of America reorganized itself into a theocratic imperial military dictatorship (think Gilead in "...
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2answers
227 views

Dungeon-fed civilization - what are the consequences?

So, I'll start with a short summary: I wanted to have magic world with other-than-agriculture based civilization. I gave them magic dungeons. I'm afraid that there are many problems I didn't take in ...
8
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7answers
2k views

Black Hole Power Plant

I had this idea for my sci-fi book, there's not going to be a central galactic government, very contested little time, but I do wanna pursue this. The more shadowy inhabitants of the center of our ...
5
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4answers
203 views

Sky of Earth and Seas of Sky

I have a medieval fantasy setting where people live in a vast expanse of giant caves. The lowest level of these caves have many lakes and oceans. Through any of these bodies of water at the bottom ...
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0answers
145 views

Humans In A Fantasy World [closed]

I am currently building a fantasy world that contains humans inside of it, but the problem I currently face or wonder about is what physical differences there might be in my world compared to the ones ...
10
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4answers
2k views

What would days and nights look like on this cylindrical world?

This is yet another "literal worldbuilding" question, as in, building worlds. Inspired, in part, by this question. What if this world is a very long (effectively infinite) hollow cylindrical cavity ...
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3answers
101 views

How can entities maintain their control of their avatars across dimensions?

Our reality is separated from the god realm through a veil that functions as a barrier. As the physical and metaphysical realms operate by different rules, the veil prevents them from interacting. The ...
7
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2answers
339 views

What is the tallest mountain possible in any gravitational environment?

In world building it is often interesting to consider extreme landscapes – how tall can a mountain be on Earth for example. But what is the tallest mountain possible in any gravitational environment? ...
5
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2answers
163 views

The Serina Series: Episode I: Cats

"Serina" is a popular speculative evolution project in which, apart from a long list of fish, invertebrates and plants, the only terrestrial chordate to colonize this terraformed moon is the canary. ...
1
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1answer
90 views

What would allow a human being to create a rift in space-time and access parallel universes? [closed]

I'm creating a story where there are individuals that can travel to parallel/alternate earths. Obviously this is all fantasy but hypothetically speaking, how would you ground this is in some related ...
1
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1answer
135 views

What would the job market look like if half the population suddenly disappeared? [closed]

Half of all humans on planet earth one day suddenly disappear, leaving no trace. My question is, how would this affect the job market? First I assume there would be a lot of grieving over lost loved ...
3
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3answers
206 views

How could human-like aliens survive on Pluto?

I apologize if I continuously ask different questions about different concepts for stories. It’s just that I can never make up my mind on what to write, and sometimes, my ideas change. But anyway, I’...
5
votes
1answer
114 views

How extreme can a habitable tidaly locked world be?

I want to create a tidally locked world with a habitable (broadly Earth like atmosphere and biome that humans could breathe and live in) band stretching around the terminator pole to pole. There would ...
1
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0answers
66 views

Communication Across Planes of Existence [closed]

In a system where there are multiple planes of existence (the center one being ours), I want my human (mostly - not important for this though) main characters to interact with forces from the other ...
-4
votes
1answer
82 views

What would prevent multiple Trojan horses from materializing in the same space? [closed]

This is a follow up question to this: What would make purity a necessity for an Eldritch being? The barrier separating our realm fro the outer realm is designed to detect and prevent it from foreign ...
36
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19answers
5k views

What sort of world would help prevent an intelligent species from discovering evolution?

I’m working on a first contact story set in the near future where an advanced alien species arrives at Earth and reveals itself to humanity, but is utterly baffled by the diversity of life that it ...
2
votes
1answer
154 views

What are possible energy carriers besides ATP?

I'm thinking about designing an alien race. The race is carbon-based and evolved on a world with an average surface temperature between 40 and 60 degrees Celsius. Now, on Earth, almost all lifeforms ...
6
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2answers
169 views

Life without a bright star?

The main source of free energy that allowed life on Earth to develop was our sun. It bombards the planet’s surface with photons of high energy, which provide activation energy for reactions necessary ...
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3answers
174 views

What strategies would be used in the hypothetical siege and defense of a city between two modern superpowers? [closed]

I've recently been listening to Dan Carlin's Hardcore History. A topic that comes up early on is the extreme changes that War itself went through between the 19th and 20th centuries. The ...
2
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2answers
226 views

How would humans live in a world made primarily of glass?

Setup: Earth developed in an alternate universe with small oceans and little water. A little before animals first left the oceans and began to walk on land, when all of Earth's land was barren sand, ...
-2
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3answers
136 views

Could a stone age civilization independently figure out about quantum mechanics [closed]

I was thinking of a stone age civilization that figures out how to use Quantum Mechanics. This civilization figures out some of the equations that describe Quantum Mechanics, and comes up with first ...
10
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6answers
4k views

Can you train primates to perform every day jobs that humans perform today?

I want to know how / if we could train monkeys to do a variety of human tasks. Is it possible to teach monkeys human trades and set them free throughout major cities to do jobs and interact with ...
1
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4answers
143 views

How can a god that loses its memories in becoming mortal, regain them?

God looked down at his creation, humanity, and was disgusted with what it saw. The race had become so entrenched in hypocrisy and sin that it considered destroying it. However, evil abominations from ...
6
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2answers
159 views

How will forced memory loss work?

So I'm writing a gag comic about a superhero blessed with a plethora of abilities collectively called "Omnipotence" but with it comes two catches. Everything that is directly or indirectly affected ...

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