You type what you do.
A line of dialogue, a decision, a half-formed plan. Write as much or as little as you want, and the next page picks it up.
An infinite interactive novel
Stories that remember.
You type what your character does. The story writes the next page, and everyone in it remembers what you did.
Written with AI · Free plan, no card · Reading is never metered
Ivo does not look up from the net. His hands keep moving, knot over knot, the way they have since before the thaw.
“The river’s open,” he says. “You said a boat. Before the ice went. Where’s my boat?”
Written while you read · 6 s
What do you do?
SayDoThinkStory
An example page. It plays on its own.
How it works
You write a line.
Here’s what happens next.
Your move · Salt, page 212
I hand Marit the ledger and say nothing about the boat.
SayDoThinkStory
There’s no list of three options to pick from. Your character only does what you write.
Person
Ivo
Net-mender · Saltmarsh
“You owe me a boat. I’ve stopped expecting it.”
turn 3
strangerturn 40
warmturn 120
owedturn 400
wary
strangerturn 40
warmturn 120
owedturn 400
wary
Through Ysolde’s eyes
- The stranger came from the north road.
- He was at the mill the night it burned.
- He has never met you.
What the world knows
- The stranger came from the north road.
- He was with you that night.
- He owes you a debt you have not called.
The record · Salt
- Turn 40You promised Ivo a boat before the thaw.promise
- Turn 212Marit learned you lied about the ledger.secret
- Turn 318The harbourmaster owes you for the storm.debt
- Turn 400The river opened. The promise came due.due
People remember you.
Everyone you meet has their own history with you. While you read, hover over a name to see who they are and what they think of you right now.
People can be lied to.
Tell someone a lie and they’ll believe it until they find out. The story keeps track of what actually happened, separately.
Promises come back.
Promises, secrets and debts go into the story’s record. Four hundred pages later, someone might still ask about that boat.
Example worlds
Pick a world, or make one up.
Start in a book or show you already love, or describe your own in a sentence. These six are just examples.
-
A quiet mystery
Salt
The tide has gone out. A ledger has washed ashore. Someone has been rewriting the town’s past.
Start this one -
Intrigue
Winter Court
You arrive at court with a borrowed name and a letter the queen was never meant to read.
Start this one -
Beyond the familiar
Twilight Band
One side of the planet burns. The other never sees the sun. You live in the narrow world between.
Start this one -
Something impossible
The Ninth Archive
Every book in the archive records a life. This morning, you found one with your name.
Start this one -
A world at the edge
The Last Ferry
The night ferry leaves without its captain. You are the only one who notices.
Start this one -
Start from one sentence
Your own world
After you’ve read
Each story ends up as a book on your shelf.
Your shelf
Pick up where you left off.
Each story has its own cover and remembers your page, on the web and on your phone.
The end
When a story ends, you get a poster.
It counts what you did: how often you said no, who changed their mind about you, and where you left the plan behind. Pick a colour and share it.
AnderbuchThe end
2people changed their mind about you
Turned the most: Ivo, from warm to wary, by way of owed.
Salt14 chapters
Yours
Download every word.
Reading and downloading are free on every plan. We don’t train on your stories unless you say so, and you can delete everything whenever you want.
Pricing
Reading is free. You pay for writing.
Reading and downloading your stories never cost anything. The plans only differ in how much new story gets written each month. Prices include VAT.
PricePassages
Reader
€0free, always
One or two passages a day. Enough to see if you like it.
- Three writing voices: Storyteller, Dramatist and Minimalist
- Any world, yours or one you know
- Unlimited reading and downloads
No card needed.
Best valuemost writing per euro
Reader+
€8a month
About 23 passages a day, at 1.2 cents each. You get more writing per euro here than on any other plan.
- 15 times as much writing as Reader
- Up to 2 canon research runs per world, so a world from a book or show gets its details right
- Unlimited reading and downloads
- Cancel whenever. You can still read everything.
Billed monthly.
Novelist
€15a month
About 39 passages a day. Or about 820 a month if you write everything in the Novelist voice.
- Everything in Reader+
- The Novelist voice, for slower, richer prose
- Dynamic, which picks a voice for each scene
- Up to 5 canon research runs per world
Billed monthly.
Have a model key?
Your own key, €15 a month. We write Storyteller and Novelist passages on your OpenRouter or DeepInfra key, about 1,570 a month. Your provider bills you for that writing, and we handle everything else.
All plans side by sideMonthly numbers, roughly
| All plans side by side | Reader | Reader+ | Novelist | Your own key |
|---|---|---|---|---|
| Price a month | €0 | €8 | €15 | €15 + your provider |
| Passages a month | about 45 | about 690 | about 1,160 | about 1,570 |
| Passages a day | 1 to 2 | about 23 | about 39 | about 52 |
| Cost per passage | free | 1.2 ¢ | 1.3 ¢ | 1.0 ¢ + your provider |
| Novelist voice | — | — | about 820 a month | on your key |
| Dynamic voice | — | — | Included | — |
| Writer, Dramatist, Minimalist, Storyteller | Included | Included | Included | Storyteller |
| Canon research runs per world | — | 2 | 5 | 5 |
| Reading and downloads | Unlimited | Unlimited | Unlimited | Unlimited |
| We train on your stories | Only if you say yes | Only if you say yes | Only if you say yes | Only if you say yes |
| Choose | Start free | Choose | Choose | Bring a key |
A passage is one turn of the story, written for you. The numbers are rough because long passages use up more than short ones. Your allowance resets each month, and there’s a cap on any five hours so it can’t all go in one night.
Questions
Asked often
What happens to my stories? Do you train on them?
We never sell your data and never use your stories for advertising. We do not train on your stories, and the Storyteller, Novelist, Dramatist and Minimalist voices are called with training explicitly disabled. There are two exceptions, both off unless you switch them on and both revocable: “Help train our writer” lets us use finished passages, without any link to you, for our own model, and the optional Muse voice is provided on terms that let Meta train on those stories. You can export and delete everything at any time.
What if Anderbuch closes?
Your stories are yours, and they leave with you. If Anderbuch ever closes, every reader gets at least 90 days’ notice and every story back as a file. You don’t have to wait for that: every story can be exported at any time, and your whole account from Settings.
What about mature content?
Anderbuch is for adults: you must be 18 or older to use it. You choose the content level per story. The mature level (18+) is opt-in and covers darker, more graphic themes; romance fades to black, and sexual content involving minors or explicit sexual content is never allowed, in any world, for any reason.
Can I bring my own model key (BYOK)?
Yes, on the Your own key plan (€15 a month incl. VAT). Connect OpenRouter in one click, or paste an OpenRouter or DeepInfra key. Storyteller and Novelist are written on your key, and your provider’s terms and costs apply to that writing; we run the world around it. The key is stored encrypted and used only for your passages. If it is refused or runs out of credit, the passage stops and says so; it is never written on our keys instead.
How do I cancel?
Anytime, from your account settings — it opens the secure customer portal where you manage payment and cancellation. You keep your plan until the end of the billing period, and your stories stay readable on the free plan.
Is there a free plan?
Yes. The Reader plan is free: enough to start a world and find out whether the product is for you, with reading and export unmetered.
Want in early?
Leave your email and we’ll send an invite when there’s room.