Hard Science

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

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 w...

Hard Science Mystery Science Fantasy Science Fiction Space Opera

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

Sol

A near-future look at our solar system

Hard Science Mecha Science Fiction Space Opera Western

Invasive Species

It has been 759 years since the Ikaros Colonial Flotilla brought terror to Kepler 77c Whether intentionally, by accident, or through some form of horrific sabotage, the outcome remains the...

Hard Science Political Science Fiction Solarpunk Urban

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

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

The Surrey

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

Hard Science 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

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

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

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

Orion Spur

Adult 18+ Cyberpunk Hard Science Horror Science Fiction

Federation of Man

Hard Science Post-modern Science Fiction Solarpunk Speculative

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

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

Tales of the void

Hard Science Mecha Science Fiction, Modern

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

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

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

WoD: After the Fall

The fifth possibly final fall of man, the one prophesied by gods and by billions of mortal men and best has come and gone. Worlds destroyed or left in ruin, inter races wiped out or on the brink of extinction. Yet we have recovered. On the ruins...

Cyberpunk Hard Magic Hard Science Post-modern Science Fantasy

Shelder

The "perfect" Earth clone... only 23 million light years away! Planet Shelder. Four billion and a half years of evolution to get here, now: explosive bio-diversity ranging from the micro to the macro. Danger lurking behind every c...

Exploration Hard Science Science Fiction Speculative

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

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

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 d...

Hard Science Science Fiction Speculative

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

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

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

Gala Supercluster

Cyberpunk Hard Science Military Science Fantasy Space Opera

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

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

The Sol System

Hard Science Science Fiction Space Opera

Traveller Genesys

A setting for the future of Humanity. Earth is no longer the only home we have. In the years since mankind launched itself from their home gravity well on the back of a barely controlled explosion, we've spread out to other parts of our...

Cyberpunk Hard Science Science Fiction Solarpunk 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

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

The Fractured Void

In 1964, three probes arrived in our humanity's own solar system. Within them lied great scientific advancements, proof that we weren't alone in the universe, and the entrance into a rabbit hole of harsh truths. Now, over a century later, Interste...

Alternative History Exploration Hard Science Horror Science Fiction

Galaxy in Eclipse

Adult 18+ Hard Science Science Fiction 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

Dark Diaspora

The Dark Diaspora is a grimdark, post-Earth, space opera science fiction universe set approximately six centuries in the future. The Dark Diaspora is the first official worldbuilding project of "Journey in World-Building (JiWB)" Youtube Chan...

Gothic Hard Science Horror Science Fiction Space Opera

The Dreamscape

"The Dreamscape" is a binary world containing two worlds within it: the first is the Conscious Self -- in essence, a scifi edition of our universe containing at least partially realistic physics -- an...

Alternative History Hard Science Science Fantasy Surreal

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

Arcturus

Hard Science Science Fiction

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

Umbra Stellar

Hard Science Neo Noir Post Apocalyptic

Celestium Universe

A scifi world showing, not necessarily the future, but a plausible future of humanity as it spreads throughout the solar system and into the stars.

Hard Science Political Science Fiction Space Opera

Era of the People's Revolution

In the late 21st century, a groundbreaking collaboration between quantum physists and computer scientists ushers in a new era with the creation of quantum computers, surpassing even the fastest traditional super computers and catalyzing advancements...

Atompunk Hard Science Military Political Solarpunk

The Universe: Galactic Empires

In the not so far future, battle for control over the galaxy rages. Massive, star spanning Empires battle it out to carve their mark on this ever shrinking galaxy where anything from sprawling, planet covering mega cities to extradimensio...

Hard Science Military Science Fantasy Science Fiction

Coriolis - The Third Horizon

Hard Science Political Religious Science Fantasy Space Opera

Beyond

At the dawn of the information age, humanity had thought itself ascendant. Having mastered the Earth, we eyed the worlds of our Solar System with machinations borne of curiosity, greed, wanderlust, and domination. But the Unraveling, the long cumulat...

Hard Science Science Fiction Solarpunk Space Opera Transhumanism

Legends of the Void Walkers

In the vast expanse of the cosmos, where stars are born and civilizations rise and fall, humanity has emerged as an unlikely player in an ancient and interconnected galaxy. From humble beginnings, Earth's inhabitants have transcended their boundar...

Hard Science Science Fantasy Science Fiction Space Opera Speculative

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

Storms of War

Storms of War takes place on earth, and follows many characters and stories spanning the distant past, and far off future.

Alternative History Fantasy, High Magic Hard Science Political Science Fiction

The Solaran Terran Republics

In 2077, the world has shifted from over 200 nations, to five, and as a result, is led by oligarchs and tyrants who are the rulers of five nations, distraught in culture, and people. In these nations, starvation enveloped the country, and oppression...

Hard Science Military Political Science Fiction, Modern Supernatural

The Dragonsong Chronicles

Welcome Adventurers, to the Dragonsong Chronicles. This is a world, set within the Forgotten Realms, Dungeons and Dragons setting. This story, begins in the year 1500, and currently active adventures are happening in the year(s) 1904 - 1906...

Adult 18+ Exploration Fantasy, High Magic Hard Magic Hard Science

The DRUniverse

What do you get when you cross George Miller cosplayers, a low fantasy kingdom, god knows how many mercenaries and a bandit problem? Apparently this. The DRUniverse is a strange multimedia shared universe, set in a post-apocalyptic/low fantasy world...

Fantasy, Low Magic Hard Science Post Apocalyptic Science Fantasy

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

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

Allwanduir

Allwanduir is a small planet beyond the limits of the observable Universe. It is part of a solar system consisting of only three planets, of which one is almost a twin to Allwanduir, and the second one a gas giant. They orbit a small star. The pla...

Exploration Hard Science Science Fantasy Science Fiction Science Fiction, Modern

Celestial Grove

One of these days I will write a proper world introduction.

Exploration Hard Science Science Fiction Speculative

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

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

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

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

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

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

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

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

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

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

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

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

High Guard

The High Guard, or SCHG, is an Oceanic (Australia and New Zealand) Massively Multiplayer Online Gaming Guild, Clan, Group, and Community consisting of mature gamers (age 18+). It represents a dynamic and multifaceted guild that blends rig...

Adult 18+ Hard Science Military Science Fiction Space Opera

Life

Life is a mid- to late Renaissance based fantasy world hinging on principles of hard science, science magic, and hints of steampunk, dark fantasy, and dystopian speculation. With humans far past their prime, the volatile event that led...

Fantasy Hard Science Medieval Science Fantasy

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

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

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

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

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

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

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)

Kreid Fleet

[p]The year is 2211. For almost two centuries now not just mankind, but all life on Earth, has been at war. This is not a war of victories and battles, but one of survival, for mankind's hubris has turned the planet's weather into a devastating, rava...

Dystopia Hard Science Post Apocalyptic Solarpunk Speculative

Abyssal Planes Prototype

Abyssal Planes is a (web)comic I’m working on. The basic idea is a reaction to the archetypical village/town/country/continent/world sized dungeon we see so often in fantasy. Why would anyone build a dungeon so big? How? What for? The ideas e...

Cyberpunk Dystopia Fantasy, Dark Hard Science Horror

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

Legacy of 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

Encyclopædia Galactica

Hard Science Military 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

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

End-of-Life

Science-fiction in a post-digital, pre-FTL era

Cyberpunk Hard Science Science Fiction, Modern Speculative Transhumanism

Nekimwa

The Human Project

Ancient Hard Science Science Fiction Speculative

Project : Eden

Hard Science Science Fiction

S.A.V.E.

Cyberpunk Hard Science Post Apocalyptic Science Fiction Speculative

The Island of Cania

The Island of Cania is far off island colonized by powers unseen. Life on the island is vast and home to many different people even if they themselves are unaware of it. The island is rich in cash crops as they favor the sub-tropic environment. Two m...

Alternative History Fantasy Fantasy, Urban Hard Magic Hard Science

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

Theta Rho

A sector of the Stars Without Number universe from the Sandbox Crew Podcast.

Cyberpunk Exploration Hard Science Political 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

TEST WORLD

to test features and try to break Dimitris's work (Sorry pal, it's for your own good :D ) ----- Please create a note with the description of the bug and how it happened if you can. Something like: I had an article crash with error 500....

Adult 18+ Alternative History Ancient Atompunk Biopunk

Istrich

A planet closer to the center of the Milky Way Istrich used to be a tropical Paradise for the Aviri people who call the planet home, a Millennia ago they were a thriving Magical industrializing people able to defend their planet from many threats how...

Alternative History Hard Magic Hard Science Science Fantasy

Lusus Naturae

Far in the future, a three-headed war is tearing apart our galaxy. In one corner lies the Hearth of Sumolus, a benevolent military junta that is welcoming to most of the galaxy's races. Opposing them directly is the Separatist Toreni Federal...

Cyberpunk Dieselpunk Hard Magic Hard Science Science Fantasy

Oblivion

[quote] So something happened to you? You've had what we call in the business the Experience, you've seen things that no human is supposed to see right? Well now you've got a choice to make. Do you go back to your life of fighting the petty terrestr...

Fantasy, Urban Hard Magic Hard Science Modern Science Fiction, Modern

Shatterlands

[spotify:https://open.spotify.com/track/4UQIn1fuVwapZHl59OJz2e?si=ghqgvS3LR12B2KIvHlf0cw] [p]"Yet still[/p] [p]we continue[/p] [p]to persist..."[/p]

Dystopia Hard Science Post Apocalyptic Science Fiction, Modern Speculative