Hard Science

Athena Minerva

A slight alteration in the history of mammals causes a subtle but powerful shift in human societies far into the future. As early human women are much more likely to survive childbirth, (and perhaps a bit more self-centered than the human women of P...

Adult 18+ Cyberpunk Hard Science Science Fiction Solarpunk

Tequila Starrise

[p]A thousand years ago, amidst the vast cosmic sea, humanity stirred from a profound slumber. The colossal colony ship U.E.F Paris, a sentinel of their forgotten origins, gently touched down on the en...

Exploration Hard Science Science Fiction

Didome

A planet where the day lasts almost half an Earth year, and human civilizations have adapted to the unique climate.

Hard Science Medieval Science Fiction Speculative

Astra Planeta

Astra Planeta is a hopeful exploration of humanity’s future path to the stars, and the connections we may forge with the other peoples and worlds of the local stellar group.

Exploration Hard Science Science Fiction Speculative

White Reach

Overview In the distant future, mankind has gone to the stars, and taken war with them. As they spread out across hundreds of star systems, a unifying presence came to exist with the Star League. From Terra, the First Lord was supposed...

Hard Science Mecha Military Political Science Fiction

Beyond Daedalus

The Daedalus, a damaged starship on a one-way journey to Trinity, the only inhabitable planet of Tau Ceti. For the children born en route, it was the only home they'd ever known. Reared by the ship's robots and cut off from communication with a ravag...

Hard Science Post Apocalyptic Science Fiction Space Opera

Xahverse

In the distant future, humanity has expanded far from their home system of Sol. Millions of stars have been colonised and humans now number in the quadrillions. Whilst most of the galaxy remains dark and unexplored, some star systems are bustling wit...

Hard Science Post Apocalyptic Science Fantasy Space Opera Transhumanism

Tamyrh

Dystopian - Science Fiction - Cyberpunk A cataclysmic natural disaster and two-thousand years of conflict have rendered the surface of this world inhospitable to humanoids. Life returns noneth...

Cyberpunk Dystopia Hard Science Political Science Fiction

Earth

This is the Earth in the year 2034 AD. This world was created for the Tale Foundry competition.

Hard Science Horror Science Fiction, Modern Supernatural

Opposition: Mars

They say Mars is the graveyard of ambitions. Partially terraformed and populated largely by tribes of genetically modified colonists, one might wonder why the nations of Earth have any interest in a hostile planet like Mars. For a diverse group of No...

Hard Science Military Political Post Apocalyptic Science Fiction

USS Nightingale

Crew profiles and mission logs for the U.S.S. Nightingale as it explores the Typhon Expanse. Gamemaster's Note: Some of this material has been borrowed from published adventures, from other sources...

Hard Science Science Fantasy Science Fiction, Modern Space Opera

The Scion's Reach

By the end of the 21st century, Earth and her colonies were on the brink of societal collapse. In an attempt to preserve human civilization as we knew it, the first extrasolar colonization program was founded: the Odyssey Initiative. Bringing tog...

Hard Science Science Fiction

Pearl Directive

[follow:f21bcf04-4876-4cee-b0dc-1554bbe5b1a8] A one-of-a-kind game that merges the genres of science fiction and fantasy. Players can embark on an immense journey of space exploration and discovery, as they navigate through an ever-...

Cyberpunk Hard Science Mystery Science Fantasy Space Opera

The Matrioshka Multiverse

The Matrioshka Multiverse is a digital space within a Matrioshka brain - a hyper-advanced, many-layered shell of near-computronium the size of a large planet, powered by a captive black hole and the emissions of several nearby red dwarf companions....

Hard Science Religious Science Fiction Speculative Transhumanism

The Vast Drift

There was no inciting incident. Nothing of particular galactic-affecting significance occurred. Simply a long time, and slow but steady progression of culture and technology brought us to where we are today.

Cyberpunk Hard Science Science Fiction, Modern Superheroic

THF Universe

[aloud]In a world driven by military and technological advancements across the galaxies, the many alien factions vie with each other over precursor technology left over from a time long past. hidden, forgotten, and potentially world-ending in the wro...

Hard Science Mystery Science Fantasy Science Fiction Space Opera

Domain

[quote] The universe is big. In the Milky Way Galaxy alone there are millions of stars, with millions of planets orbiting them. We know that at least some of them must harbor life, and that at least some of that life must be intelligent. At least som...

Exploration Hard Science Military Science Fiction

Résonance

Le Theseus-G1 est parti de la Terre en 2076 pour se lancer à la poursuite d'ondes étranges en provenance de 16-Cigny-Bb. Cette boîte de conserve titanesque, fruit des meilleurs ingénieurs terriens, abrite une dizaine de milliers d'habitants et vogue...

Hard Science Science Fiction

The Colossuss Galaxy

Far from the limits of our universe, far from all things you could think about, and far away in the massive black thing that space is, theres a spot, called the Colossuss Galaxy, in which races, exotic planets and even dark obscure things happen dail...

Hard Science Military Political Science Fiction, Modern Space Opera

The Seas of Steel

The Seas of Steel. An inhospitable, global ocean, surrounding the continent of Valemar. Few can navigate the windy sea, with its forbidding currents and deadly inhabitants. But some don't have a choice. Some must navig...

Fantasy Hard Magic Hard Science Medieval

Life Under Four Suns

[aloud]My personal project for competing in WA Summer Camp 2020.[/aloud] [container:callout]This setting proudly uses the [world:d4935f8e-1685-4104-a8e9-4301e1f150f2] for it's campaigns![/container] [quote]Basht slammed the ship controls forward....

Hard Science Science Fantasy Western

The Sol System

Hard Science Science Fiction Space Opera

Verge of the Void

[quote] [p]Aus den Sternen kamen wir. Aus den leeren Weiten formten wir Ursprung.[/p] [p]Genötigt von unserer Gier, gefunden von unseren Ahnen, gemacht von unserer Hand; mannigfaltig sind unsere Wege, die u...

Crime Hard Science Science Fiction Transhumanism Western

The Stellar Front

A second Cold War between China and an America-led coalition goes hot. After seven years of chaos, nearly three hundred million dead, and the victory of democracy, the alliance disintegrates and five superpowers are given a world to govern... even as...

Hard Science Science Fiction Speculative

Blue Way

Blue Way, our first laser highway, is complete and more, to other stars, are in construction. We made it far into to the darkness, but we are still only dipping our toes in the deep cosmic ocean and who knows, what lurks in the deep.

Atompunk Exploration Hard Science Science Fiction Speculative

Arcturus

Hard Science Science Fiction

The World of Az

A world, not dissimilar in origin to our own real Earth, though with a few key differences. First and most obvious is the presence of magic that has been around since the dawn of the three great races of man, giant and the Vull'jorg (reminiscent of t...

Fantasy Hard Magic Hard Science Informational Military

Stellar Journey

[aloud]The relatively small volume of human inhabitation is no lesser for its size. Inside this bubble there are man-made structures, wrapped around entire worlds, others so plentiful they shine like diamonds in the sky. Planets both with endless des...

Hard Science Science Fiction Shōnen Speculative

Paradigm

Someone once told me that we tell only the stories that are memorable, the stories that have novel experiences and interesting conclusions. It wasn't until much later in my life that I understood what that stranger meant. We may consider life mundane...

Exploration Fantasy Fantasy, High Magic Hard Science Political

Drift City

Diese Welt ist Schauplatz unserer Mekton Zeta Kampagnen. Mekton Zeta ist ein TTRPG mit Mechas, auch Mektons genannt, das von Mike Pondsmith entwickelt wurde und auf seinem bekannten Werk 'Cyberpunk 2.0.2.0.' basiert. Wir haben die Regeln hier und da...

Cyberpunk Hard Science Mecha Science Fiction Space Opera

Wouraiya

Welcome to Wouraiya! If you're interested in sampling stories, I'd like to suggest a few: [url:https://www.worldanvil.com/w/wouraiya-daskalarch/a/weaponizing-power-of-love2C-and-similar-faff-prose]Weaponizing the Power of Love, and Similar F...

Exploration Fantasy, Low Magic Hard Science Medieval Military

Licentia

[quote] Our zombies are different!|Literally every writer ever[/quote] Welcome to the landing page for everything related to this world! Please be aware that some content on both my twitter accounts and this website might be graphic, so considering...

Biopunk Hard Science Political Post Apocalyptic

Talifar

Talifar is the setting for the Tales From Talifar novels. In development for over two decades from the mother-and-son team of Josh Foreman and Rose Foreman. Rose is a science fiction / fantasy author and writing teacher. Josh has been building worlds...

Fantasy Hard Science Science Fantasy

Isaac Atomic Solar System

The year is 2247. The solar system has long since been colonized with a total population of around 23 billion, but most people still live on earth, around 20 billion of them. Mars long ago separated from earth, and the gas giants have formed together...

Hard Science Science Fiction Speculative

The Sealed Kingdoms

In the far-away region of IC 1848 - also known as the Soul Nebula - lies a sphere of inhabited space measuring roughly 100 light years across. This region is known as the Sealed Kingdoms by those who live there - 'sealed' both for the envelope of ga...

Cyberpunk Exploration Hard Science Space Opera

The Dust and Cold (Themis)

The basic setting is that some humans travels to a distant star system on a fleet of colonial ships. They planned to establish colonies on this habitable desert planet named Themis. But something happened which I'm still slightly undecided on which c...

Comedy Exploration Hard Science Science Fiction Western

JUMP CORE UNIVERSE

For a century, humanity's most brilliant minds have been entranced by the seductive promise of faster-than-light travel, only to be met with crushing disappointment at every turn. Finian Rist, a globally notorious AI engineer renowned as much for...

Hard Science Science Fantasy Science Fiction Science Fiction, Modern Space Opera

The Surrey

Welcome to The Surrey, an independent hauler based out of Ceres running on the Earth flag, but behold...

Hard Science Science Fiction

Shelder

[h2|ee7d7e6f-f0e5-4ca4-9565-bdc5b7d70fbb]The "perfect" Earth clone... only 23 million light years away! [p][/p] [h3|de03da23-9950-4771-bfe4-6dc45eeb0289]Planet Shelder. Four billion and a half years of evolution to get here, now: explosive bio...

Exploration Hard Science Science Fiction Speculative

Sol

A near-future look at our solar system

Hard Science Mecha Science Fiction Space Opera Western

The Fields Beyond

"Through the mud I trudge to protect a future I'll never see, on a planet I no longer recognise, in a galaxy that will not remember my name" - Recovered Blackbox Uvs Aimag, Shinekhen Tal

Hard Science Horror Military Science Fiction Trenchpunk

Wayfarers Universe

The Wayfarers Universe is a science fiction setting that follows the trials and travels of the Szassar, a race of space-faring reptilian hexapods who are rebuilding their civilisation after succumbing to an intellect-sapping extra-terrestrial phage....

Hard Science Post-modern Science Fiction Science Fiction, Modern Speculative

Encyclopædia Galactica

Hard Science Military Science Fiction Space Opera

15th Realm of Secrets

Welcome to the 15th Realm of Secrets (15ROS for short). In this magicless sciency themed fantasy world you will leaf through my pet project fictional world with many creatures, nations, peoples, environments, histories, cultures and more. From the ha...

Ancient Fantasy Hard Science Military

The Sirius Galaxy

The cold, dark, reaches of space beyond the Sirius Galaxy are just that; no light of a twinkling star, no noise to be picked up by the most advanced equipment. It would be terrifying if the systems filling Sirius had an official, public count, and ha...

Dystopia Hard Science Horror Science Fiction Space Opera

Universe 2525

This is a version of our universe in the year 2525. A lot has happened in the period between our present and the year 2525. The large corporations that once controlled almost everything have now been dismantled, and the few that still exist, do so un...

Biopunk Hard Science Post Apocalyptic Solarpunk Transhumanism

S.A.V.E.

Cyberpunk Hard Science Post Apocalyptic Science Fiction Speculative

Monopole Moment

Fanfiction Hard Science Science Fiction Speculative Transhumanism

Lexicon / Lekcaekon

A cross between Krypton and Kryptonians from Superman and (mostly) Lexicon and Lexiconians from the cartoon WordGirl with an extremely strong dash of hard scientific accuracy, realism, depiction, and portrayal cause why not?

Hard Science Science Fiction Science Fiction, Modern

Orion Spur

Adult 18+ Cyberpunk Hard Science Horror Science Fiction

Ereya

update July 2023: Probably no one's noticed, but for posterity's sake, this project has been dead for a while now. Turns out pure worldbuilding isn't as fun as writing stories. But I'm stabbing the metaphorical corpse with an iron rod, cranking th...

Fantasy Hard Science Military Science Fantasy Science Fiction, Modern

Gaius

SENTENCE: Prelude wants to retrieve the time sword from the temple of time before the next planer alignment in order to bring the Society for the Advancement of Human Biology into the present day...

Biopunk Fantasy Hard Magic Hard Science MagiPunk

Long War

Contrary to humanity's expectations, neither leaving Earth nor expanding throught the Galaxy could change human nature. When Mankind expanded throughout the stars, its problems expanded as well. Both in number and in scale. Most of them will...

Dystopia Hard Science Political Science Fiction Space Opera

Invasive Species

[h1|b6758f37-417f-47d3-a2bf-7d2b094cff6e]HUMANITY'S SALVATION HAD BECOME ITS GRAVEYARD [h3|b66a90d0-17d9-49c2-b816-e5868e7bc07e]Whether intentionally, by accident, or through some form of horrific sabotage, the outcome remains...

Hard Science Political Science Fiction Solarpunk Urban

Legacy of Sol

"Legacy of Sol" is a science fiction setting focused on a hypothetical early expansion of mankind into outer space. It draws inspiration from a wide variety of sources and is intended to primarily feature the exceptional men and women that pilot the...

Exploration Hard Science Mecha Military Science Fiction

Angaran Expansion Project

The angara from Bioware's Mass Effect: Andromeda are a fascinating race. However, our meeting with them takes place so quickly and during such a complex series of events that there would have been a lot of confusion and missing information... Where w...

Fanfiction Hard Science Informational Science Fantasy Science Fiction

Fission Intercept

[p]NOTE: The setting as a whole is currently undergoing a major revamp. This wiki is currently in a transitory state as I update information and rewrite articles. Information you find here may or may not be canon.[/p] [p][/p] [p][/p] [p]Fis...

Atompunk Exploration Hard Science Military Science Fiction

Emergence

The mysteries of space unfold to the citizens of the Galactic Planet Federation. Nearly 200 years ago, humankind discovered the great power of warp travel. With this, they set out upon the stars to explore the last great frontier. Corporations a...

Hard Science Science Fiction Space Opera

The Rangers of Walden

Realistic post-apocalyptic survival set in the near future where the end of civilization, as we know it, is a mystery and unimportant. All that matters is surviving... and perhaps thriving... in a new world with new dangers.

Hard Science Literature RPG Post Apocalyptic Post-modern Western

A Dark New World

In the near future, Earth is near collapse. Humanity in it's hubris has fractured into major powers and spread throughout the Solar System, and starting to colonise the closest star systems. Regions are are divided into political factions, and even t...

Adult 18+ Crime Cyberpunk Dystopia Exploration

Galaxy in Eclipse

Adult 18+ Hard Science Science Fiction Space Opera

Patron Saints

Space is a wide, wild place. Sometimes, the lines between good and evil are blurred and you have to start wondering: are the monsters right?

Hard Science Science Fiction Science Fiction, Modern

After Earth

In the early 1970s, scientists warned of the consequences of climate change. Greenhouse effect, polar ice melt, droughts, dying forests and storms. But these warnings were dismissed as scaremongering or ignored. Even at the beginning of the 2...

Hard Science Science Fiction, Modern

Deep Space Pioneer

Dans un lointain futur, l'Humanité s'est étendue à travers les étoiles, conquérant de nouvelles terres d'opportunités et rencontrant de nouvelles races aliens dans le processus. Mais profitant...

Hard Science Science Fiction Space Opera

The Cluster

The M56 globular cluster, known simply as "The Cluster" is a globular star cluster located approximately 32,900 light years from Earth. In the year 12,658 CE, as measured by the old Terran calendar system, a large, primarily human colon...

Hard Science Science Fiction Space Opera

Space Avians

The world of Space Avians is one of intrigue, statecraft, war and highly evolved flightless birds. On a distant, Earth-like planet a species of velociraptor-like avians have developed into early iron age societies and begun rapidly expanding across t...

Hard Science

Captured in Space & Time

[p]The year is 3500, and mankind is in the golden age of space exploration. With wormhole-generating technology and near-lightspeed probes, expansion into the Milky Way is in full swing. As the void of space is being filled, some old habits of humani...

Hard Science

Into the Black

2169 and Earth has built itself out of a home. Humanity 30 Billion strong, those who haven't left megacity earth have moved to the stars in hopes of better lives and opportunities. Others left to avoid their demons planetside. Yet still others were b...

Cyberpunk Hard Science Space Opera Weird

Gala Supercluster

Cyberpunk Hard Science Military Science Fantasy Space Opera

The Chord

Hard Science Science Fantasy Science Fiction Victorian

Celestial Grove

Exploration Hard Science Military Science Fiction

The Universe: Galactic Empires

[quote]"The true ruler of this galaxy will not be he who's flags fly on every city of every world. It will be he who stands upon the tallest tower of ashes" - Zurrok; former ruler of the Sirasion Empire[/quote] In the not so far fut...

Hard Science Military Science Fantasy Science Fiction

Ikaran Adventures

The future?

Hard Science Space Opera Transhumanism

Era'guya

What if you knew how things came to be? What if dragons, gods and men are lost toys dropped in a box by a fickle superpower? What if the dirt was magic? What if you were dropped in this world with no context and no way home? Era'guya is a world wh...

Adult 18+ Alternative History Ancient Atompunk Biopunk

Tales of the void

Hard Science Mecha Science Fiction, Modern

The Magic of Science

Isekai where we dropped the whingy highschooler for a researcher in his 30s, the shallow explanations for a comprehensive system of related physics, and the harem for scientific inquiry. Pretty much the book I wanted to read.

Hard Magic Hard Science Informational Isekai Science Fantasy

Real-Life Worldbuilding

[quote]Hey you! Yes, you! Looking for some inspiration, aren't you? Well you're in luck then, because you've come to the right place! Look no further than where you are, your wonder-full planet.[/quote] [p]The diff...

Fantasy Hard Science Modern Science Fantasy Science Fiction

trianimus

I once saw an image… it was called "dogfight" and it is by Marek Okon. it gave me a few ideas, what if instead of a generic sci-fi where there is "magic" being passed off as science being used daily, there was a sci-fi where you have magic and scienc...

Fantasy, Romantic Hard Science Science Fantasy

Yooperverse

Alternative History Hard Science Military Modern

Eternity is not Immortal

Nothing is truly immortal, save that which we leave behind us, written into the sands of time. Eventually the winds pick up those sands and blow them around the world, sometimes they will be obliterated by the footsteps of later and greater beings, b...

Dystopia Hard Science Mecha Military Political

Coriolis - The Third Horizon

Hard Science Political Religious Science Fantasy Space Opera

Wynn, Gavel, and the Sea of Cordal

The UCVN has been to thousands of universes, growing in power, population, and technology with each new expedition. Even when faced with moral dilemmas and determined foes, the UCVN is dedicated to creating a better world for each sapient species the...

Exploration Hard Magic Hard Science Military Transhumanism

Kaminar

A dystopian future involving an authoritarian police state, pervasive surveillance, cyberpunk elements with commonplace artificial body implants, and immoral political machinations. Freedom is the antithesis of happiness in a state that has relinq...

Cyberpunk Dystopia Hard Science Science Fiction

Overthrown Arsonations

Clockpunk Decopunk Fantasy, Dark Hard Magic Hard Science

The Tiruid Chronicles

[p]From a group of outcasts and escaped slaves to a galactic hegemon, the 9th Tiruid Empire has come far since prophet Tiru held his first sermon thousands of years ago. In the name of Artheisha's divine cause to bring prosperity and saftey to the ab...

Hard Science Oriental Science Fantasy Science Fiction

Solar system 212X

Идет 2121 год. Человечество, как вид продолжает процветать. Население Земли достигло 13 миллиардов, огромные агломерации мегаполисов и агрикультурные комплексы покрывают 3/4 суши. Люди осваивают мировой океан как новый хабитат, а также основали 3 мег...

Cyberpunk Hard Science Political Science Fiction Transhumanism

UberSpace

[color:#e86e04]A Science Fiction Experience spanning a number of different games and activities...[/color] [color:#e86e04]Part RPG, part Megagame, part Board Game and part Hands-On Starship BRIDGE Simulator all get wrapped up into one epic ad...

Exploration Hard Science Science Fiction Science Fiction, Modern Space Opera

Obsidian

After 5000 years of human civilization, humanity has finally claimed its rightful place among the stars. But not all is well in their secluded corner of the milky way. The Splinter group of Noctra has been rampaging through known space, taking system...

Hard Science Political Science Fantasy Science Fiction Young Adult (YA)

Orphis

Somewhere, at the farthest reaches of the galaxy, floats a humble world. One whose surface beams with life... and so does its entrails. One where science leads the way... but magic and gods leads the hearts. One who would seem like nothing mo...

Alternative History Fantasy Hard Science Medieval Steampunk

Treiach

A lush, earthlike planet sitting smack dab in the goldilocks belt of their solar system. With a mass almost three times that of earth, and a radius of almost 9000km, one will find there a lot of planet to explore. However, almost 80% of the surface i...

Biopunk Clockpunk Dieselpunk Exploration Flintlock

Arcverse

The Arcverse is a fictional version of our own universe heavily based in scientific fact and plausible speculation. The canonical history of the Arcverse stretches from the Big Bang that began the universe to the final extra-universal migration of al...

Exploration Hard Science Science Fiction Space Opera Speculative

Reborn Stars

For millenia, the galaxy was empty. Its previous inhabitants wiped out, their monuments razed, leaving barely a trace behind. All that is left of their greatness are a few precious scraps for the next generation of species to squabble over. The galax...

Hard Science Political Science Fiction Speculative

Cenargo Corporation

Cenargo was formed by the merger of Centaur Technologies and Argon Aerospace, the companies who funded the development of the Foscolo reactionless displacement drive. It is also responsible for the terraforming of Aphrodite Station off Centauri Prime...

Cyberpunk Hard Science Horror Neo Noir Science Fiction

[Our] Stellar Exodus

https://stellarexodus.com/ (free-to-read)

Cyberpunk Dystopia Hard Science Political Science Fiction

Known Space

Also Known as Charted Space, Known Space comprises all inhabited planets surrounding earth in the early 24th Century and extends several hundred lightyears from Earth, with the furthest observed civilizations as far as 5000 lightyears away.

Exploration Hard Science Horror Military Science Fiction, Modern

The Bijourn Cluster

Space is empty We give it names: the expanse, the black, this territory or that We try to fill it with people and ships and colonies, so that every pinprick of light may no...

Hard Science Science Fiction

Project Daedalus

A near(ish)-future hard sci-fi To die is human. It is part of the experience of all humans, no matter what race, religion, or nationality, to confront our own mortality. So what does that make those who transcend our biological and Hayflick limits...

Alternative History Cyberpunk Hard Science Science Fiction Space Opera

Luminal Flare

[youtube:https://youtube.com/watch?v=UNceFac8YK8]Luminal Flare is a hard sci-fi, far future dance of atomic starships, thermonuclear broadsides, stellar exploration, cybernetic augmentation, digital ascension, and relativistic supe...

Cyberpunk Exploration Hard Science Science Fiction Transhumanism

Ichor

-WIP- In the 32nd century, humanity has spread out from their original home of Terra (formerly "Earth") and colonized an area a dozen or so light-...

Biopunk Hard Science Mecha Speculative Evolution

The AuraVerse

The year is 2424. Humanity has discovered a new planet that is not only habitable, but strangely Earth-like. They called this second Earth "Evergreen" - a planet still in the springtime of its youth. As humanity spread to the "Outer Colonies" in t...

Comedy Hard Science Romance Science Fantasy Space Opera