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Epoch Studio playtest
by Epoch Works LLC
Epoch Studio is a private, local-first AI writing studio for authors and worldbuilders. Start writing your story or import a manuscript and Epoch will map its cast, locations, timeline, and continuity—then keep writing, illustrate, compose, proof, and export your work. Buy once. No subscription.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Sep 3, 2026
- Planned release
- Coming soon
- Developer
- Epoch Works LLC
- Platforms
- Windows
- Languages
- English
How to join the Epoch Studio playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the Epoch Studio playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
How AI is used
Epoch Studio is a private writing and worldbuilding studio. When you ask it to, it can generate text suggestions and illustrations to help you develop your own manuscript. All generation runs locally on your own machine using bundled, permissively-licensed AI models — or optional cloud providers you connect with your own API key. Nothing is generated on its own: every suggestion is a deliberate action you take, and you review, edit, and decide what becomes part of your book. Your writing never leaves your device and is never used to train any AI model.
The developer's own words, from Steam.
About Epoch Studio
YOUR STORY IS MORE THAN A PROMPT
Epoch Studio turns your manuscript into a connected writing workspace. Import a draft—or begin with an idea—and develop your book from its first words to its finished form, all in one private, local-first studio.
BUILD A LIVING MODEL OF YOUR BOOK
Epoch maps the characters, locations, scenes, relationships, timeline, and continuity inside your manuscript.
Explore your world as a connected whole instead of hunting through scattered notes, documents, and story bibles.
WRITE WITH CONTEXT THAT STAYS GROUNDED
Draft, revise, and explore ideas with AI that works from your story’s established context.
Epoch helps uncover contradictions, timeline problems, missing setup and payoff, and characters who know things they should not—before those problems reach your readers. You decide what the AI may suggest and what becomes part of your book.
SEE THE WORLD YOU’RE WRITING
Create character portraits, location art, and scene illustrations. Organize your visual library, explore your world on interactive canvases, and bring the scenes in your imagination onto the page.
TAKE THE BOOK FROM DRAFT TO FINISH
Write and revise your manuscript, compose illustrated pages, inspect the finished layout, create a cover, produce audio, and export your work—without assembling a pile of disconnected applications.
LOCAL-FIRST. PRIVATE BY DEFAULT.
Run downloadable text and image models on supported hardware. After the initial model downloads, core local AI can work offline.
Your project files stay on your computer unless you deliberately connect an optional cloud provider. Epoch does not use your manuscript to train models. Any third-party provider you choose operates under its own terms.
YOUR MACHINE. YOUR FILES. YOUR BOOK.
Buy Epoch Studio once. Use its local tools without an Epoch subscription or per-token fees.
From the game's Steam page.
