Interactive fiction, reinvented

One story.
Infinite paths.

Manyfold is the social home for AI-assisted interactive fiction. Spin a single idea into branching timelines with Spark, your co-writer — then publish to readers who choose the path.

A lighthouse keeper finds a door in the sea. Every reader begins here — then decides whether the door is mercy or trap. The premise that started Manyfold

Android-first · soon on Google Play · beta readers get it first

0
Choice points
0
Endings
0
Secret route

In The Keeper & the Tide — the demo story mapped below.

Every story you've ever loved made one choice. Manyfold lets you keep all of them — and hands the next decision to your reader.

The shape of it

Watch a single idea unfold.

Keep scrolling — each scene holds while the next slides over it, the way a story reveals itself to a reader.

Scene 01

The opening

A lighthouse. A keeper. A door that shouldn't exist beneath the tide.

Scene 02

The discovery

Every reader begins here — then decides whether the door is mercy or trap.

Scene 03

The choice

Two paths split the night. Spark sketches both; you decide where they lead.

Scene 04

The timelines

Each decision spins a new thread. Worlds drift apart, each carrying its own truth.

Scene 05

Infinite endings

Dozens of endings wait at the edges. Most readers will never find them all.

How it works

From a spark to a living story in four moves.

No node-graph PhD required. Spark helps with the first branches while Manyfold keeps the wiring visible, editable, and yours.

I

Imagine the opening

Type a premise — “a lighthouse keeper finds a door in the sea.” Spark sketches the first scene in your voice.

II

Branch the timeline

Accept a branch, rewrite it, or invent your own. Every choice forks the canvas into a new timeline; Spark keeps characters, tone, and continuity consistent across all of them.

III

Shape the endings

Set conditions, hidden variables, and secret routes. Manyfold maps which choices lead where, flags dead ends, and helps you land every ending.

IV

Publish & watch them choose

Share to your followers in one tap. Readers swipe through choices while you watch a live heat-map of the paths they take — and the endings they never reach.

Spark studio

Say the idea. Spark builds the world.

Plots, scenes, characters, endings — and the art to match. Spark is a co-writer, not an autopilot: every branch it proposes waits for your yes.

“a lighthouse keeper finds a door in the sea”

  • 01 The lamp answers
  • 02 The door beneath
  • 03 The bargain
  • 04 The tide keeps score

Cover art · painted for “The Door”

Mara Voss

Keeper · cast by Spark

Salt crusts the rail as Mara counts the flashes — three long, one short. The sea is signalling back.

Features

Everything a branching story needs — and nothing it doesn't.

Built for writers first, readers always.

Spark, your co-writer

Describe a scene and Spark sketches it in your voice, suggests where the plot could fork, and keeps every character consistent.

The branching canvas

A living map of your story. Drag to fork a timeline, pinch to zoom across the multiverse, and see which paths go nowhere.

Infinite endings

Set conditions and hidden variables so secret routes only unlock for the readers who earn them.

Remix & fork

Love someone's universe? Fork it, add a timeline, and credit flows back automatically. Stories grow together.

A social feed for fiction

Follow creators, react inside the story, and explore the next path everyone's talking about.

Live reader analytics

A real-time heat-map of every choice. See where readers hesitate, which endings stay hidden, and where a branch dies.

Reads anywhere

A swipe-native reader on mobile, immersive on the web. Progress syncs across every device.

The canvas

This is what one story looks like.

The real branch map of The Keeper & the Tide — one opening folding into choices, timelines, and endings. Amber is the path most readers take. Paths rejoin: a branch can come back.

OPENING SECRET
The path most readers take Paths they don't Branches further out

Choice points

Each node is a fork. Spark suggests options; you decide which survive and where they lead.

Diverging timelines

Branches carry their own state — a character lost in one path is gone for good in that timeline.

Many endings

Hopeful, tragic, secret. Every leaf is an ending a reader can reach — and rush back to change.

The reader

Reading becomes a choice you make.

No menus, no manuals. Readers swipe through your scene and tap the path that pulls them. Choices are weighted live, so they feel the pulse of every other reader in the story.

  • Swipe-native, one-handed reading
  • See how the crowd chose — or hide it for a blind run
  • Rewind any choice to chase a different ending

Immersive mode

Stories you don't just read. You enter.

Tap play in the app and Spark narrates while the backdrops it painted drift behind the words. Keep scrolling — this is that screen, on stage.

Backdrops painted by Spark

The lamp had burned for two hundred years — and tonight, something answered it from below.

Beneath the tide the door hums like a struck bell, warm where the ocean should be cold.

It opens onto a sky that has never heard of her stars — and a shore where someone is waiting.

Step through 68%
Seal the door 32%

The social fold

Fiction with a feed.

Every story lands in a feed built for readers, not screenshots. Follow the creators folding your favourite worlds, and react inside the scenes that got you.

The Keeper & the Tide

Timeline 3 of ∞ · new branch published

The tide keeps score

“I found the ending only 4% of readers reach. I'm not okay.”

◆ 2 new timelines ◆ 6 endings ◆ 1 secret
  • Profiles, followers, and a feed of fresh forks
  • React scene-by-scene — not just at the end
  • Share your timeline as a card; credit flows back on every fork

Built in the open

The story we built to test it.

Manyfold is in closed beta — so instead of testimonials from creators who don't exist yet, here's the story we've been folding ourselves while building the thing.

The Keeper & the Tide

The demo story · every screen on this page

The tide pulled back further than it had in forty years, and there — set into the wet sand like a thing that had always been waiting — stood a door.

6
Choice points
6
Endings
1
Secret route
1
Rejoin point
  • Every branch above is drawn from the map in the canvas
  • Written with Spark, forked by hand, exactly as you'd use it
  • Your story replaces this one the day the beta opens

Pricing

Start free. Fold further when you're ready.

Every plan includes the canvas, the social feed, and your first slice of Spark.

Reader

$0 /forever

For everyone who'd rather explore than write.

  • Unlimited reading & choices
  • Follow creators & react
  • 1 short story of your own
Get started

Studio

$29 /month

For teams and pros publishing at scale.

  • Everything in Storyteller
  • Multi-author canvases
  • Saved Spark voice & tone styles
  • Monetize & advanced analytics
Talk to us

Planned pricing for launch. Nothing is charged during the closed beta.

The door is open

Your first infinite story is one idea away.

Manyfold is in closed beta. Leave your email and you'll be first through when the tide goes out.

Soon on Google Play · beta readers get it first · no card, no catch