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wow that's a lot of stars    Galactic    Culture & History      The Scream
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The Scream

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Content Warning: Mass death Mass destruction Intense pain Brain damage

 
The Scream was a catastrophe unlike anything humankind had seen before or has seen since. It killed untold trillions, destroyed all advanced technology, and ended spacefaring for all humanity. Though we've rebuilt much in the centuries since, the Scream remains a permanent scar on our history.

The Event

It's been described in many ways, from "metadimensional power surge" to "faster-than-light psionic emanation". It happened in 2665. With no warning, on a day like any other, the Scream took minutes to end the golden age we'd spent millennia building.
  It killed everyone with psionic abilities and destroyed psionic-based technology. In its wake, it left shattered communities, decimated populations, and isolated planets as all means of interstellar travel were nullified in an instant. To this day, it still marks a dividing line in our history, for the pre-Scream galaxy must have been an entirely different place.
 

The Cause

The cause of the Scream is unknown. No existing documents refer to similar events, no lab has breached faster-than-light travel, and no psionics testing has created anything resembling the effects of the Scream. The prevailing theory is that the instigating event occurred in and traveled through metadimensional space. This would explain why it only affected people and objects tied to metadimensional energies through psionics and how it traversed the galaxy so quickly.
  Religious groups have filled in the blanks scientific theory has left in its wake. Though there are hundreds of recognized religions in the sector, and thousands of sects within each, the two primary ones are sects of the Church of the Great Mother. Both groups believe the Scream relates to the Great Mother.
 
Mother of the Stars
Organization | Apr 26, 2026

Religion that views psionics as a gift from the Mother of the Stars.

The Scream must have been a cry for help from the Mother, and it's up to us to figure out how to help Her.
Congregation of the Enlightened
Organization | Apr 26, 2026

A religion that sees psionics as the root of all evil. Practiced primarily on Livonia.

The Scream must have been punishment from the Mother, and She won't return until psionics are eradicated.
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Information

Date of event
2665 June 25
Estimated duration
7 minutes
Death toll
unknown trillions
Lead to
The Silence, a period of interplanetary isolation
Cause
Undetermined
Frequency
Unknown

The Effects

Immediate

Psionic Death
Every psion gripped their heads and cried in pain as if subjected to a sound no one else could hear. The surge killed most instantly, liquifying portions of their brains. Others turned Feral and began killing those around them.
Psitech Destruction
Psitech overloaded, some devices failing while others caused fires or explosions that devestated regions. Disabled life support and other vital systems killed settlements and colonies in otherwise uninhabitable reaches.
Colony Collapse
Other colonies died slow. Without jump gates, they failed without access necessary materials and medicines they couldn't make themselves. In other cases, they'd lost the technology or population required to survive.

Long Term

Lost Knowledge
We've redeveloped interstellar travel and psionic institutions, but humanity's former glory remains out of reach. We can't recreate psitech or other pretech, and psions can't practice without the risk of brain damage.
Lost Connections
We've no way to know what became of the Earth, nor any of the innumerable interstellar colonies. What is the fate of other human colonies? Could they be allies? Or are they more like the Emerald Legion?
Lost Trust
Many cultures developed a deep fear of psionics, especially those that previously had a high psionic population. These cultures destroyed any material relating to psionics, contributing to the current lack of information.

 
Tell me, do you think about the Scream anymore? No, of course not. It happened centuries ago. Did you know some idiots say it never happened at all? They should think more, I think. Of those who do have brains in their skulls, we should consider two questions that many are too afraid to ask:
  First is could the Scream have happened before? We wouldn't know, would we? With no psionics before 2240 and no spike drives before 2100, we'd be unaffected by older occurances. Left blissfully unaware.
  Secondly, and most worryingly, if it's possible the Scream happened before, then is it not also possible it could happen again?
— Scholar of protaphilosophy

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Entry for Worldbuilding Summer Camp 2023

Answering: "a destructive natural or supernatural event"
Visit Those2Nerds's Competition Page Check all other answers to this prompt Competition Homepage

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wow that's a lot of stars and CSS theme © 2023-2026 Rin Garnett, all rights reserved. This setting is built off of the Stars Without Number: Revised Edition tabletop roleplaying game by Kevin Crawford, © 2017 Sine Nomine Publishing, Inc. Background image by Rin Garnett. All other images are credited to their original artist as detailed here.
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Cover image: Global Banner by Aaron Lee (left), Nick Ong & Norah Khor (right)
  • Metadata
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Physical / Metaphysical Law
World
wow that's a lot of stars
Category
Culture & History in Galactic
Author
Those2Nerds
Publication Date
5 Jul, 2023
Creation Date
5 Jul, 2023
Last Update Date
26 Apr, 2026
Visibility
Public
Views
924
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Comments
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Tags
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Comments

Author's Notes

The concept of the Scream is described on page 124 of the Stars Without Number: Revised Edition rulebook, though my version of galactic history has deviated significantly from the source.
  Features:
2023 Across the Worlds 2023 by Annie Stein


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Exalted Councilor of the Inner Sanctum Graylion
Jul 8, 2023 23:02

Oh wow what a massive and shattering experience. This feels like the opening to a series, movie or book. Happy world building during Summer Camp.


Graylion - Nexus   Roleplaying
not Ruleplaying
not Rollplaying
Grandmaster Those2Nerds
Jul 9, 2023 20:25 by Rin Garnett

It's a great plot device and I'd love to explore it more. I could base an entire campaign around uncovering the true cause and stopping it from happening again.   Hope you are also having a good Summer Camp!

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Sage nnie
Aug 27, 2023 09:43 by Annie Stein

This article got me invested enough to look into Stars Without Number. I didn't get very deep, but the scream is a really great plot device. I think you utilize it really well in Talos, and this article is a really good overview of it and it's impact.   I think the only thing that kind of confuses me is the timeline, what is the current year of Talos? How many years ago was 2665?

Solaris -— a sapphic space opera
Creator of World of Worlds | Camp Chill | Comment Carolers

Grandmaster Those2Nerds
Aug 27, 2023 16:23 by Rin Garnett

It's currently 3228, so it's been 563 years. I need a better way to ground events in the overall timeline, and tucking the current date behind the info button at the left isn't quite cutting it. I'm thinking of making a top-of-the-page panel like Ethnis and Cathedris have, to display the date nice and prominently there. But now you have me wondering if I can do something more visual...

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Eternal Sage kitoypoy
Sep 13, 2023 12:46 by Chris L

Cool way to introduce a plot device. It piqued my interest enough for me to look up "Stars Without Number", which takes a lot since I'm so D&D-centric! Loving these glimpses into your worldbuilding.

Learn about the World of Wizard's Peak. I'm participating in World Anvil's Summer Camp 2026, are you? Check out my progress at my Summer Camp 2026 Hub!

Grandmaster Those2Nerds
Sep 13, 2023 17:55 by Rin Garnett

I'm glad! I suspect a lot of world builders would enjoy the Sector Creation part of the rulebook, it's such a fun way to approach creating the setting for the game.

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Councilor of the Inner Sanctum Serukis
Jul 9, 2024 01:28 by Dr Emily Vair-Turnbull

The unknown is what makes this absolutely terrifying, especially the thought that it could happen again. Yikes. Really great article - I'm sorry I missed it last year! :)

Emy x
Explore Etrea | Summer Camp 2026
Grandmaster Those2Nerds
Jul 28, 2024 13:58 by Rin Garnett

That's the fun part of updating old articles, the articles get better and new people get to see them :D

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skairunner
Dec 18, 2025 21:27

"could the Scream have happened before? We wouldn't know, would we? With no psionics before 2240 and no spike drives before 2100, we'd be unaffected by older occurances. Left blissfully unaware."   100 emoji 100 emoji   love carrington event-like things and the scream is exactly it

Grandmaster Those2Nerds
Dec 22, 2025 00:38 by Rin Garnett

The fun part of technology is being able to better experience the h o r r o r s

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