For novelists who plan

A keep for your stories.

Ink Fortress is a writing workspace that remembers every character, location, and thread across an entire series. Plan on a visual canvas. Write in a calm editor that knows your cast. Edit in five passes. Let the workspace catch the contradictions you'd miss. Then turn your series into a branching adventure your readers play in a free Kindle-like reader.

Start free See how it works

Story Graph is free forever. No credit card. No expiry.

Story Graph node detail with Write this chapter button

From plot card to chapter. One click.

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The workflow tax

Right now, your novel lives in eight places.

You didn't sign up to be a project manager. But somewhere between the first draft and the third revision, your story turned into a logistics problem.

01A spreadsheet that knows your character's eye colour — and is two revisions out of date.
02Sticky notes on the wall for plot beats. Some have fallen off. You can't remember which.
03Plottr or Scrivener for structure. Then you write in Word. Or Google Docs. Or both.
04A folder of inspiration photos that you swore you'd organise.
05Another spreadsheet for the series timeline. It contradicts the first one.
06Mailchimp for ARC readers. BookFunnel for delivery. Goodreads for reviewers. Three logins.
07And if you ever wanted to make it interactive, that meant a developer you couldn't afford.
08The manuscript itself — which has quietly drifted from every one of the above.

You're paying hundreds of dollars a month for tools that don't talk to each other, and spending half your writing time copying text between them. We're proposing something simpler.

Story Graph · The planning canvas

Map your series, not just your novel.

Most plotting tools were built for a single book. Story Graph treats series as native. Books are nodes. Plot threads cross between them. Scenes attach to characters. Reveals connect back to their clues.

One thread, three books, every connection visible — on an infinite canvas, free forever, yours to keep whether or not you upgrade.

The best writers plan backwards. Define the reveal. Place the clues. Weave the threads.

Story Graph view of a trilogy with plotlines, characters, and chapters

One thread, three books, every connection visible.

Relationship graph with typed edges between the cast — family, friend, rival, mentor, foil

Every alliance, betrayal, and grudge — mapped.

Relationship detail panel showing directional feelings between two characters

He resents her. She has already forgiven him. Relationships have direction.

Relationship Graph · Character network

A cast that earns its arcs.

Plot is what your characters do. Story is what they become. The Relationship Graph maps every character against every other — alliances, rivalries, secrets, betrayals — across the entire series.

When Sarah lies to Marcus in Ch. 4, the graph remembers. When that lie surfaces in Ch. 19, you'll see it coming because you set it up here.

Plot wants, fears, wounds, and beliefs on one canvas. Build the cast. The story follows.

The Editor · Chapter-organised writing

A calm editor. Chapter-organised.

Distraction-free Tiptap editor with proper chapter and scene organisation in the sidebar — the way Atticus or Scrivener handle structure, but inside the same canvas as your plan. Click a plot card in Story Graph; the chapter opens. Click a chapter; it sits next to its node on the graph.

Type @Sarah and the cast you've built drops in. Hover any mention — voice, traits, last appearance, all there.

The Writer canvas with chapter sidebar, KB-synced indicator, and Coauthor input bar — Sidebar structure and @-mentions tied to your fortress.

Codex entry for Port Lyrra showing cross-references to books, chapters, nodes, and plotlines — Codex entries feed mentions and continuity everywhere you write.

The Fortress · Series memory

A workspace that remembers.

Locations, factions, items, organisations, lore — the Codex is one place for everything in your world. Build a place once; it appears everywhere it's mentioned, with the right details, every time.

Series-wide knowledge base. Auto-built manuscript bible. The character you named in Book 1 still has the same eye colour, the same scar, the same backstory in Book 3. The vault that was empty in chapter 4 doesn't mysteriously contain a map in chapter 19.

Continuity Hub · The catches you'd miss

It catches the contradictions.

Every chapter you write is checked against the Fortress in real time. The character who's allergic to peanuts in Book 1 doesn't order pad thai in Book 2. The vault that locked from the outside in chapter 4 doesn't open from the inside in chapter 19.

Series-wide contradiction detection. You see a flag the moment the inconsistency lands — not in the third revision after your beta readers find it.

Continuity flag · Ch. 19

In Ch. 4, the vault was described as locked from the outside, key held by Marcus. Here, Sarah lets herself out without explanation. Want to reconcile?

Continuity flag · Ch. 12

Eliza died 2020in her Codex profile. Here she's referenced as "still teaching last spring." Want to update one?

Adventure Builder · Your world, now playable

You built the world. Now let them live in it.

You spent five books building a world your readers love. They know your cities, your factions, your villains by name — and they've always wanted to step inside. Now they can.

Take the smuggler from book two. Drop her into The Saltmarsh Crown— she chooses her allies, double-crosses the ones she likes, and carves out a kingdom you never wrote. Every reader's version is theirs alone.

Your lore is already loaded. The Adventure Builder pulls the characters, creatures, locations, and history out of your Fortress and into the adventure — nothing to retype.

They make world-changing choices. Face the factions you created, pick a side, win a throne or lose everything.

Your canon never moves. Readers play inside an instance of your world. Ten thousand readers can each end up on a different throne — your main series stays exactly as you wrote it.

No saga required. Skip the world-building and start a standalone adventure on a blank canvas. The world tools are there when you want them, gone when you don't.

Your canon stays safe. Your world becomes theirs to play in.

Your IP · More than books

One world. Many paydays.

Your world is the real asset — a novel is just one way to sell it. Build it once; cash in again and again, to the fans who already love it.

Sell the books. You already do.
Sell adventure modules set in the same world — same characters, same lore, brand-new product.
Chain sequels. Part 1 → Part 2 → Part 3, each module a new purchase.
Keep the upside. Sell on your own store, on DriveThruRPG, or straight to your mailing list — we take no cut of what you sell off-platform.

You already did the hard part — building a world people love. Sell it more than once.

$6.4B → $14.8B

interactive fiction market, 2025 to 2034

1.4B

people engaging with interactive narrative content

3.6B

global game players, over 60% of online users

≈6M

Dungeon Crawler Carl copies across the first seven books

Sources: Dataintelo interactive fiction market report, Newzoo 2025 games market reporting, and public Dungeon Crawler Carl sales reporting.

Adventure Builder · No code

Branching adventures. Drag and drop.

Lay your scenes on a canvas. Draw the choices between them. What a reader can do next depends on what they're carrying — and you set every rule with zero scripting.

Carry an artifact. Your reader finds the skeleton key in room two; at the locked gate forty pages later, only key-holders get through.

Run a quest. Gather the 7 Gems of Vorlon — scatter them across the branches; the final path opens only when the set is complete.

Count what matters. 7 romance points. 3 wattle seeds. Cross a threshold, unlock a new ending. Choices add up — and pay off.

Coming soon — the Fortress Game Engine, powered by Core6. We're building in the Core6 universal gaming system — fast d6 dice pools, one-roll combat, and heroes ready in minutes, flexible across any genre. Real RPG mechanics — character stats, skill checks, dice, and combat — drop straight into your adventure with zero code.

Open reader.inkfortress.com

The old way · Why you never built one

Making one used to mean becoming a developer.

You had to learn to code. Branching tools mean variables, flags, and conditionals — programming in all but name.
Or hire a developer you couldn't really afford, then re-explain your story to them.
You rebuilt your whole world from scratch. None of your characters, lore, or maps existed in the tool.
You tracked every flag by hand. Did they grab the key? Spare the guard? Hit 7 romance points? Miss one and the story silently breaks.
Soft-locks ambushed you. A reader hits a dead end you never knew existed — and you find out from a one-star review.
There was no familiar reader app, no store, no checkout, and no clean delivery path.

Now, the whole thing collapses into

Drag, drop, done — on the same canvas you already plan on.
Your world is already there — pulled from your Fortress.
Gates, artifacts, and quests are visual — and tracked for you, no scripting.
A built-in playtest and validation sweep catches soft-locks before readers do.
The free Fortress Reader at reader.inkfortress.com delivers it to your audience like a Kindle.
Export and sell anywhere — instantly.

From "learn to code or hire a dev" to "drag, drop, done."

Fortress Reader · Free for your readers

They read it the way it was meant to be read.

Free for your readers — no cost, no friction, nothing to figure out.
Feels like a Kindle — the clean, comfortable reading app they already know.
Their choices, their inventory — tracked quietly beneath the prose; no game clutter, no HUD.
On the device already in their hand — phone or tablet, online or off.

Send readers to reader.inkfortress.com — the reader they already understand, now built to play your worlds.

Visit reader.inkfortress.com

Yours to keep · Yours to sell

The tool is free. The reader is free. The work is yours.

Free forever — the same deal as Story Graph.
Export and sell anywhere — DriveThruRPG, your own Ink Fortress author store, your Patreon, your list.
No off-platform cut — what you sell elsewhere is 100% yours.

Build the adventure. The audience — and the upside — are yours.

Voice memory · AI that sounds like you

When the AI helps, it helps in your voice.

The workspace builds a voice fingerprint from your prose — sentence length, cadence, comma habits, the words you avoid, the words you reach for. When the AI offers an alternative line or a Show-Don't-Tell pass, it writes in your voice, not a generic one.

And it never publishes anything on its own. Every suggestion sits next to your prose, awaiting your nod. Accept, refine, reject. You're still the author.

Unlimited · The publishing team

When the book is done, the work isn't over.

Editing. Launch. Marketing. Publicity. Audiobook. Hire that team and you're spending $11,000 to $25,000 per book. Unlimited gives you the same five specialists as AI — each trained on your full manuscript, each available at 2am, all for $100 a month.

Five AI coaches. Onemanuscript memory. They don't ask you to repeat themselves. They cite the chapter when they make a claim.

Aimee ·

The Editor

Reads like a senior editor. Flags plot holes, character inconsistency, arc collapses. Walks developmental → structural → line → copy → proofreading in order. Cites the chapter every time.

Hire a human$3,500 – $8,000 / book

Drew ·

The Launch Coach

Owns the calendar. Lines up the publisher platform, ISBN, intro, back cover, launch sequence. Tells you what each coach is doing today, what's slipping, what they need from you.

Hire a human$3,000 – $10,000 / launch

Carol ·

The Marketing Coach

Builds your author site. Sets up the first-chapter opt-in and follow-up sequence. Designs the ARC pipeline. Names your reader. Tells you which ad to run, where, with which image.

Hire a human$2,500 – $6,000 / campaign

Chris ·

The Publicity Coach

Writes the press release. Builds the press kit. Drafts your bio, your back cover, your one-line pitch. Identifies the journalists and podcasters who cover your genre — and the angle each will care about.

Hire a human$2,500 – $5,000 / month

Allan ·

The Audiobook Coach

Casts voices to your characters. Produces a multi-voice audiobook at Audible quality. Walks you through ACX submission, royalty share vs flat rate, exclusivity. Handles the mastering you didn't want to learn.

Hire a human$1,600 – $3,200 / book

∞

One brain

All five · Shared memory

All five read from the same manuscript memory the Writer and Story Graph already use. Chris knows what Aimee fixed. Drew knows what Carol shipped. They don't ask you to repeat yourself. No agency briefs. No re-explaining.

If you hired humans

$11K – $25K

Per book. Conservative mid-market rates. Excludes coordination overhead.

↔

Unlimited

$100 / mo

Five AI specialists. Same manuscript memory as your Writer. Cancel anytime.

They are AI. That's the point.A human launch coach can't read your manuscript by 9am and answer questions about it at 2am. A team of five can't share a single memory of your book. The reason this offer exists at all is that AI lets us do what humans never could at this price. They cite the chapter so you can check. They never publish anything on their own. You approve every decision.

Start Unlimited Compare plans

For grown writers

Adult fiction. No more AI censorship.

Sex and violence is part of life. We won't judge.

Romance, thriller, horror, dark fantasy, literary — your AI shouldn't be the one second-guessing your craft. Ink Fortress writes what your scene needs. Drafts. Edits. Reviews. No softening, no refusals, no apologies.

Your work, your data

No data hostage. Your manuscript walks out with you.

Full import. Full export. Standard formats.

Drop EPUB, MOBI, or DOCX manuscripts in — Ink Fortress extracts characters, locations, threads, and chapter structure into your fortress. Export the other way whenever you want: manuscripts, knowledge base, story graphs, character profiles — all in standard formats that open anywhere.

Cancel and your data stays. Leave and your data leaves with you. We earn the subscription. We don't trap it.

See it in motion.

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