The opening
A lighthouse. A keeper. A door that shouldn't exist beneath the tide.
Interactive fiction, reinvented
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
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
Keep scrolling — each scene holds while the next slides over it, the way a story reveals itself to a reader.
A lighthouse. A keeper. A door that shouldn't exist beneath the tide.
Every reader begins here — then decides whether the door is mercy or trap.
Two paths split the night. Spark sketches both; you decide where they lead.
Each decision spins a new thread. Worlds drift apart, each carrying its own truth.
Dozens of endings wait at the edges. Most readers will never find them all.
How it works
No node-graph PhD required. Spark helps with the first branches while Manyfold keeps the wiring visible, editable, and yours.
Type a premise — “a lighthouse keeper finds a door in the sea.” Spark sketches the first scene in your voice.
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.
Set conditions, hidden variables, and secret routes. Manyfold maps which choices lead where, flags dead ends, and helps you land every ending.
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
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”
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
Built for writers first, readers always.
Describe a scene and Spark sketches it in your voice, suggests where the plot could fork, and keeps every character consistent.
A living map of your story. Drag to fork a timeline, pinch to zoom across the multiverse, and see which paths go nowhere.
Set conditions and hidden variables so secret routes only unlock for the readers who earn them.
Love someone's universe? Fork it, add a timeline, and credit flows back automatically. Stories grow together.
Follow creators, react inside the story, and explore the next path everyone's talking about.
A real-time heat-map of every choice. See where readers hesitate, which endings stay hidden, and where a branch dies.
A swipe-native reader on mobile, immersive on the web. Progress syncs across every device.
The canvas
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.
Each node is a fork. Spark suggests options; you decide which survive and where they lead.
Branches carry their own state — a character lost in one path is gone for good in that timeline.
Hopeful, tragic, secret. Every leaf is an ending a reader can reach — and rush back to change.
The reader
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.
Immersive mode
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.
Built in the open
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.
Pricing
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.
Storyteller
$9 /month
For creators building living, branching worlds.
Studio
$29 /month
For teams and pros publishing at scale.
Planned pricing for launch. Nothing is charged during the closed beta.
The door is open
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
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.”