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Vault Number Generator (Fallout)

Updated: 2025-08-18 (created: 2025-08-04)

Beneath the irradiated soil of the wasteland lie countless Vaults, each with its own sinister or bizarre social experiment. The Fallout Vault Number Generator creates new Vault designations and their secret purposes. Generate ideas like 'Project Amber Vault 22' or 'Shelter Vault 773 Social Stress Test' to inspire new locations and stories.

Generate Vault numbers (Fallout)

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Designing Your Shelter

When creating a new Vault, consider:

What is the official purpose of the Vault (e.g., 'Genetics Program,' 'Vault Born Study')?
What is the secret, twisted experiment being conducted?
Does the location name give a clue ('Appalachia,' 'Sublevel')?
Is it designated as a Project, Shelter, Bunker, or Complex?
What unique story will unfold within its walls?

Fallout Vault Number FAQs

Here are some answers to common questions about creating your own Vault-Tec experiment:

How does this generator create Vault numbers and experiments?

It pairs a random Vault number with a project designation and a plausible-sounding social or scientific experiment, mirroring the dark creativity of Vault-Tec.

Can I use these Vaults in my Fallout TTRPG?

Definitely! These generated Vaults are perfect starting points for new adventures, dungeons, and entire campaign arcs for your players to explore.

Are the experiment types based on official lore?

Yes, the generator is inspired by the sinister and often absurd experiments found in the canonical Vaults of the Fallout series, ensuring a consistent tone.

How many Vaults can I generate?

You can generate an unlimited number of Vaults. Keep clicking to create a whole new network of underground shelters and social nightmares.

How can I save a Vault idea I like?

Simply click on a generated Vault to copy its details, or use the heart icon to save it to your personal list of top-secret locations.

What are good Vault numbers (Fallout)?

There's thousands of random Vault numbers (Fallout) in this generator. Here are some samples to start:

Project Amber Vault 22
Project Dorothy Vault 12
Facility Vault 22 Synthetic Integration
Shelter Vault 8 Blind Justice
Shelter Vault 773 Social Stress Test
Appalachia Vault 843 Genetics Program
Sublevel Vault 274 Vault Born Study
Bunker Vault 185 Memory Wipe Trial
Complex Vault 12 Vote Rigging Protocol
Appalachia Vault 350 Vote Rigging Protocol

About the creator

All idea generators and writing tools on The Story Shack are carefully crafted by storyteller and developer Martin Hooijmans. During the day I work on tech solutions. In my free hours I love diving into stories, be it reading, writing, gaming, roleplaying, you name it, I probably enjoy it. The Story Shack is my way of giving back to the global storytelling community. It's a huge creative outlet where I love bringing my ideas to life. Thanks for coming by, and if you enjoyed this tool, make sure you check out a few more!

Embed on your website

To embed this idea generator on your website, copy and paste the following code where you want the widget to appear:

             <div id="story-shack-widget"></div>
<script src="https://widget.thestoryshack.com/embed.js"></script>
<script>
  new StoryShackWidget('#story-shack-widget', {
    generatorId: 'vault-number-generator-fallout',
    generatorName: 'Vault Number Generator (Fallout)',
    generatorUrl: 'https://thestoryshack.com/tools/vault-number-generator-fallout/',
    language: 'en'
  });
</script>
           