Go All The Way To 1,500 Ready-To-Create Horror Ideas
Unlock the complete AI Scary Stories Mega Vault with 75 horror categories and 1,500 ready-to-create story ideas. This final vault adds 35 more horror categories and 700 additional ideas beyond the Expansion Edition.
AI Scary Stories Mega Vault
75 categories and 1,500 story ideas in the complete Mega Vault.
Create your next scary story.
Choose from the complete 1,500-story vault across 75 horror categories. Build your own story or let the app surprise you.
Add 35 More Categories + 700 More Story Ideas
The Mega Vault brings together the Front End, Expansion Edition and Mega Vault collections in one complete 75-category, 1,500-idea edition.
40 horror categories
35 additional horror categories
75 total horror categories
Take Your Horror Library Into Entirely New Territory
Move beyond the original and Expansion collections with 35 additional horror directions and 700 more ready-to-create story concepts.
Every New Category Comes With 20 Ready-Made Ideas
The Mega Vault is not just a list of category names. Each new category contains 20 actual horror concepts with a title and premise ready to turn into an ebook.
Black Star
A strange black star appears where no star should exist, and everyone who studies it begins dreaming the same impossible place.
Harvest Night
A family moves to a rural village just before an annual harvest tradition no outsider has ever been allowed to witness.
Ash Circle
A woman discovers a perfect circle of ash around her home every morning, with the ring moving closer to the house each night.
Under the Ice
A research team hears rhythmic knocking from beneath ice measured to be thousands of feet thick.
Winter of 1816
A remote settlement survives the year without summer only to realize the cold is keeping something dormant.
Ninth Skeleton
An excavation uncovers nine skeletons in a tomb built to hold eight, and the extra remains match a living member of the team.
Deck 14
A passenger discovers an elevator button for a deck omitted from every ship map and passenger directory.
Last Human Town
A survivor reaches a thriving settlement after years alone, but nobody there will explain why the gates only lock from the outside.
Your Biggest Selection Of Story Starting Points
Search and browse the complete Mega Vault across all 75 horror categories.
- 1,500 ready-to-create horror concepts
- 75 total horror categories
- Search categories and story ideas
- Create a selected story immediately
- Spin ideas into fresh variations
- Save favorites for later
Story Vault
75 horror categories and 1,500 ready-to-create story concepts.
Choose From All 75 Categories In Build My Story
Pick the category and ingredients you want, then choose which supported AI should write the ebook.
- Choose category, main character and age
- Select setting, threat and ending style
- Choose 2,000–3,000, 4,000–6,000 or 8,000–12,000 word targets
- Add your author or pen name
- Add an optional custom Story Seed
- Create with ChatGPT, Claude or Gemini
Build My Story
Choose a few options, then choose which AI will write your ebook.
Scare Me Can Pull From The Entire Mega Vault
One click can choose the category, story idea, character, setting, threat, ending and length from the complete 1,500-idea collection.
Scare Me
Let the app choose everything.
Ready to be surprised?
One click chooses the category, story seed, character, setting, threat, ending and length.
SCARE MEUse ChatGPT, Claude Or Gemini — Story By Story
The button you choose determines which supported AI provider writes that ebook.
Use your OpenAI API key and the text model selected in Settings.
Use your Anthropic API key and choose Claude whenever you want it to write the ebook.
Use your Google AI API key and generate through the same simple workflow.
Turn Any Of The 1,500 Ideas Into A Finished Horror Ebook
Every Mega Vault concept runs through the same blueprint-first writing and publishing workflow.
Private Story Blueprint
Creates the cast, setting, timeline, threat rules, clues, continuity facts, reveal, climax and chapter plan.
Sequential Chapters
Writes the book chapter by chapter while carrying forward continuity and previous events.
Book Description
Generates polished bookstore-style description copy from the completed manuscript.
Cover Studio
Use Cover Mood Presets, spin visual variations, create with ChatGPT/OpenAI or Gemini, or upload your own.
Automatic Cover PDF
Once saved to the story, your cover is automatically inserted as the first page of the downloaded PDF.
PDF + EPUB Downloads
Finish with downloadable ebook formats after reviewing your story and cover.
From 300 Ideas To The Complete 1,500-Idea Mega Vault
| Feature | Front End | Expansion | Mega Vault |
|---|---|---|---|
| Horror Categories | 15 | 40 | 75 |
| Ready Story Ideas | 300 | 800 | 1,500 |
| Categories Added At This Level | — | +25 | +35 |
| Ideas Added At This Level | — | +500 | +700 |
| Story Vault | ✓ | ✓ | ✓ |
| Build My Story | ✓ | ✓ | ✓ |
| Scare Me | ✓ | ✓ | ✓ |
| ChatGPT / Claude / Gemini | ✓ | ✓ | ✓ |
| Cover Studio + Mood Presets | ✓ | ✓ | ✓ |
| PDF + EPUB Downloads | ✓ | ✓ | ✓ |
Know Exactly What Mega Vault Gives You
What exactly does OTO 2 add?
OTO 2 adds 35 additional horror categories and 700 additional ready-to-create story ideas beyond the Expansion Edition, bringing the complete Mega Vault to 75 categories and 1,500 story ideas.
Does Mega Vault contain the earlier categories too?
Yes. The Mega Vault is the complete collection, combining the Front End, Expansion Edition and Mega Vault category sets into one 75-category edition.
Do I need to learn a new workflow?
No. It uses the same Story Vault, Build My Story, Scare Me, Favorites, My Stories, cover and ebook workflow.
Can I choose ChatGPT, Claude or Gemini?
Yes. Choose the supported AI provider you want to use for each ebook. You only need the API key for the provider you choose.
Can I create or upload ebook covers?
Yes. The Cover Studio supports ChatGPT/OpenAI or Gemini image generation when configured, plus your own uploaded cover image.
Does my saved cover automatically go into the PDF?
Yes. Once the cover is saved to the story, AI Scary Stories automatically inserts it into the downloaded PDF.
What formats can I download?
The software supports PDF, EPUB and text-based manuscript downloads or copying.
Is the $12.95 a monthly fee?
No. This OTO 2 Mega Vault upgrade is a one-time $12.95 payment. AI provider usage, if any, is separate.
Get 75 Horror Categories + 1,500 Story Ideas In The Mega Vault For Just $12.95
Add the final 35 categories and 700 ideas and unlock the complete 75-category, 1,500-idea AI Scary Stories Mega Vault.
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