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The #1 AI
Sci-Fi Novel Writer.
Your Space Opera In Minutes.

Pick your subgenre — space opera, hard sci-fi, cyberpunk, dystopian, military, first contact, time travel — drop a story spark, and our AI writes a finished sci-fi novel: hard worldbuilding, alien factions, dual-POV chapters, dialogue, cover and chapter art — ready for Amazon KDP. You keep 100% of the royalties.

Get Lifetime Access — Pay Once
Every Sci-Fi Subgenre Built In
Hard Worldbuilding, Alien Factions, Tech
Publish As Yours On KDP
Sci-fi author Sci-fi author Sci-fi author Sci-fi author Sci-fi author
Trusted by 6,234 sci-fi authors

From One "What If" Premise
To a Finished Sci-Fi Novel

Just enter one speculative idea. And:

Our AI will find a hook-y sci-fi title — the kind that ranks in Amazon's Sci-Fi Top 100
Our AI will build your starship crew or colony team — ranks, motivations, ship politics, the one secret nobody's saying out loud
Our AI will build your hard-sci-fi tech — FTL drive rules, AI consciousness, gene-edits, alien biology that holds up to scrutiny
Our AI will build your worlds and factions — planets, empires, megacorps, alien species, terraforming colonies, dystopian regimes
Our AI will map every sci-fi beat from inciting anomaly to first contact to interstellar war to twist resolution
Our AI will write every chapter — fast prose for chase scenes, tight worldbuilding for tech scenes, dialogue that sounds like a crew that's served together
Our AI will generate sci-fi chapter art — spaceships, alien worlds, cyberpunk megacities, dystopian skylines
Our AI will design a sci-fi cover — cinematic, genre-coded, KDP-perfect
Our AI will deliver a 100% publish-ready sci-fi novel for KDP

Export to PDF, EPUB or DOCX with

AI generated sci-fi novels showcase

See Exactly What Our AI Writes
Download a Real Sci-Fi Novel

Every novel below was written 100% automatically by BookNova — characters, plot, hard worldbuilding, dialogue, cover and chapter art.
One click. The AI handles everything. Download and read the actual quality of an AI-written sci-fi novel before you buy.

The Last Honest Ship — Space Opera Space Opera
237 pages PDF
Motion Detected — Psychological Thriller Psychological Thriller
274 pages PDF
A Ledger of Ash and Lamplight — Romantasy Romantasy
243 pages PDF
Hitched by Harvest — Small Town Romance Small Town Romance
196 pages PDF
Everything Below the Waterline — Enemies to Lovers Enemies to Lovers
216 pages PDF
The Tide Clock — Whodunit Whodunit
218 pages PDF
The Last Crossing at Hollin Ford — Mythic Fantasy Mythic Fantasy
220 pages PDF

A Galactic Saga in Your Head
But No Time to Write It?

You've got the rival empires, the rogue AI, the generation ship that's been adrift for 200 years, the magic-system-but-it's-quantum-physics. But instead of releasing your sci-fi series on KDP, you're stuck:

Worldbuilding bible is 120 pages of factions, FTL physics, alien cultures — you've written 3 chapters in 6 months
Tech-system contradictions in chapter 14 because you forgot what the FTL drive could and couldn't do in chapter 4
Watching The Expanse / Bobiverse / Dungeon Crawler Carl wave pass while you re-outline your trilogy for the third year

The Hard Part of Writing Sci-Fi
Is Already Done for You

Skip the months of worldbuilding spreadsheets, faction whiteboards, FTL-physics rabbit holes, and 12-draft chapters. Whether it's a sweeping space opera or a tight cyberpunk noir — it's done.

Sci-fi book covers Sci-fi book covers

You Tried ChatGPT for Your Sci-Fi.
It Forgot the FTL Drive Rules by Chapter 5.

BookNova does what ChatGPT can't — DELIVERS A FINISHED SCI-FI NOVEL with consistent worldbuilding, hard-tech rules that hold, alien cultures with internal logic, and faction politics that escalate. Not 30 disconnected prompts where the spaceship class changes mid-book.

12x 94% 47m ⚡ vs ChatGPT
12x
12x faster to a finished sci-fi novel — under an hour vs months of worldbuilding, drafting multi-POV chapters, and shopping cinematic covers
94%
94% less worldbuilding chaos — tech rules stay consistent, alien factions stay distinct, faction politics don't randomly reset between chapters
47m
47 minutes saved per chapter — no prompting, no re-explaining the alien biology, no fixing FTL contradictions. Hours back to release more sci-fi books in your saga
Sail Mode

Your Story. Your Voice.
You Steer Every Chapter.

In Sail Mode no outline is written behind your back. You decide where each chapter goes. BookNova writes it in your voice and remembers every detail for you.

You are the captain AI is your co-pilot
1You steer

Chapter 7 · Where does the story go next?

Mara finally opens the letter, and tells Tobias the truth.

Change the plan. Tap one:

In the app you rewrite the plan in your own words, or ask for new ideas.

2AI writes it, in your voice
Chapter 7

“There’s something I should have told you,” Mara said.

3The Story World remembers

New in chapter 7Tobias knows about the letter.

Tobias Hale Lighthouse The letter Harbor inn Port Varen Mara
PeoplePlacesObjects

No One Can Hold a Whole Novel in Their Head. The Story World Can.

By chapter 20 a novel holds hundreds of small facts: who knows what, who is where, what was promised. The AI builds the Story World by itself, after every chapter, and writes the next one with all of it in front of it. So chapter 23 stays true to chapter 2.

PeopleRelationshipsPlacesObjectsWorld rulesTimeline

It is yours to open at any time, right next to your chapters. Edit a fact or remove one, and the next chapters follow.

Everything That Makes It Yours

Your story

Bring your own idea, characters, setting and tone. Share as much or as little as you want.

Your Story Bible

Premise, world, themes and tone in one place. The AI can draft it, and you can rewrite every line.

Your author voice

Paste a few pages of your own writing and BookNova learns how you write. No pages yet? Take the taste test or pick a ready-made style.

Your call, every chapter

Nothing is written until you press the button. Edit any chapter, regenerate it, or bring back an earlier version.

You’re the Captain. The AI Is Your Co-Pilot.

See the Plans

Sail Mode, the Story Bible and your author voice are part of every plan. Sail Mode is for novels and chapter books.

Ready for Amazon KDP

Amazon's Upload Page Has 7 Hard Parts.
You'll Have All 7 Ready.

You bring the idea. BookNova writes the novel, then builds every file and every answer Amazon KDP asks for. Print files for Lulu and Draft2Digital too.

Worried Amazon won’t accept an AI book?Amazon KDP allows AI-written books; you declare it when you upload. What it turns away is low-quality work. So BookNova is built for quality: a story that stays consistent from the first chapter to the last, prose written to avoid the usual AI clichés, and every file made to Amazon’s own specifications.Authors download more than 1,000 KDP packages from BookNova every month.

Your Amazon KDP upload 7 of 7 ready

Amazon KDP allows AI-written books. Its rule is that you declare it when you upload. BookNova gives you the wording for that answer and, with every book, a Content Rights Certificate and a generation log that show how it was made.

The pink strip is the gutter, the binding edge

A print-ready interior PDF in 6×9, 5×8 or A5. Margins and the gutter are set from your page count. Title page, copyright page and contents are built in.

Front cover of a novel written with BookNova, next to its spine and back cover
0.53 inspine (13.6 mm)
12.78 infull cover width

Back cover, spine and front in one print-ready PDF, with bleed. The spine is sized from your real page count and paper. Hardcover wrap too.

An EPUB manuscript plus a separate cover JPG, the way KDP takes them. The same EPUB works on Kobo and Apple Books.

A book description drafted from your novel, in the formatting Amazon accepts and inside its 4,000-character limit. Change any word before you paste it.

Example for a space opera
space operasmuggler captainfound family crewgalactic empireinterstellar warstarship adventuremilitary sci-fi

Seven search keywords drafted from your story. Banned words and trademarked names are filtered out.

Example suggestions
  • Books › Science Fiction & Fantasy › Science Fiction › Space Opera
  • Kindle Store › Kindle eBooks › Science Fiction & Fantasy › Science Fiction › Space Opera

Category suggestions for the paperback and the Kindle store. You pick the closest match in KDP's own list.

It all comes in one download, with a note that tells you which file goes in which KDP slot.

From Your Idea to a Book Ready for Amazon. One Payment. No Subscription.

Pay once and keep writing. Your credits refill every month, free.

See the Plans

The print cover, EPUB and listing come with Pro and up. You publish in your own KDP account, and BookNova takes no cut of your sales.

Finish Your Book

Half a Novel Sitting in a Drawer?
Upload It. Finish It.

Upload the chapters you already wrote. BookNova reads them, learns your voice and helps you write the rest, one chapter at a time.

  1. 1Drop in your Word file

    Wherever you wrote it (Word, Google Docs, even ChatGPT), save it as a .docx and upload it. One chapter is enough to start.

    Import your manuscriptStep 1 of 4

    Drag & drop your manuscript here

    my-novel.docxWord document

    38,400 words imported

  2. 2Your chapters, found for you

    BookNova spots where each chapter starts. Rename, split or merge anything before you go on.

    Review chaptersStep 2 of 4
    • Prologue1,240 words
    • Chapter 13,610 words
    • Chapter 23,480 words
    • Chapter 34,050 words
    • + 7 more chapters

  3. 3It reads your book. It doesn’t rewrite it.

    From your own pages it builds your Story Bible, your characters and your author voice: sentence rhythm, dialogue, even your punctuation habits. The analysis is free, and not one word of yours is changed.

    AI analysisStep 3 of 4
    Read: 11 of 11 chapters0 credits used
    • Story BiblePremise, world, themes, tonebuilt
    • CharactersWho they are, how they speak6 found
    • Author voiceLearned from your own proselearned
    • Story compassWhere the story is headingset
    Your voiceSentence rhythmshort, short, longDialogue-heavyShort paragraphs

  4. 4Write the rest, chapter by chapter

    No more writer’s block. BookNova has read your whole book, so for every new chapter it works out where the story could go next. Keep its plan, change it, or ask for new ideas. Then it writes the chapter in your voice.

    Sail Mode · Chapter 11Step 4 of 4

    Where does the story go next?From your 11 chapters

    Mara takes the night ferry back to the island and finds the lighthouse door already open.

  5. 5Then it’s a real book

    Add a cover, format the pages and download your book as PDF, EPUB or DOCX. Or take the full Amazon KDP package, with a print cover for paperback and hardcover.

    PDFEPUBDOCXAmazon KDP package
    • Kindle eBook
    • Paperback
    • Hardcover
Your words stay yours

Nothing you wrote is corrected or rewritten, unless you ask for it.

Free to analyse

The import and the analysis use no credits. Only the new chapters do.

Still writing? Fine.

Upload what you have today and add the next part of the same book later.

Your Book Is Already Started. Let’s Finish It.

See the Plans

Manuscript import comes with the Platinum and Author plans. It takes Word .docx files.

Every Sci-Fi Subgenre
Built Cover to Cover In Minutes

From sweeping space opera to gritty cyberpunk, hard sci-fi to dystopian, military space marines to first contact — pick the subgenre your readers crave, drop a story idea, get a finished sci-fi novel with worldbuilding, factions and chapters fully written.

Space Opera

Galactic empires, starship crews, rival houses, FTL warfare across a hundred systems. The Expanse / Mass-Effect-coded subgenre that anchors the genre.

Subgenre · Sci-Fi

Hard Sci-Fi

Real-physics-only. Orbital mechanics that work. Engineering problems with engineering solutions. The Andy-Weir / Project-Hail-Mary-coded subgenre.

Subgenre · Sci-Fi

Cyberpunk

Neon megacities, neural implants, megacorp shadow wars, hackers and ronin. The Neuromancer / Blade-Runner-coded subgenre that's never gone out of style.

Subgenre · Sci-Fi

Dystopian

Authoritarian regimes, surveillance states, controlled populations, rebellion arcs. The 1984 / Hunger-Games / Handmaid's-coded subgenre.

Subgenre · Sci-Fi

Post-Apocalyptic

After the bombs. After the plague. After the AI. Survival, scarcity, found family, slow rebuilding. The Road / Station-Eleven-coded subgenre.

Subgenre · Sci-Fi

Military Sci-Fi

Space marines, alien wars, fleet operations, rank-and-file soldiers in interstellar conflicts. Old Man's War / Starship-Troopers-coded reliable seller.

Subgenre · Sci-Fi

First Contact

The signal arrives. Or the ship lands. Or they've been here all along. Humanity's first encounter with the truly alien — built into the AI's beat sheet.

Subgenre · Sci-Fi

Time Travel

Time loops, paradoxes, multiple timelines, fixed points and branching futures. The structurally hardest sci-fi subgenre — the AI handles the math.

Subgenre · Sci-Fi

Sci-Fi Romance / Alien Mates

Alien warriors, human heroines, fated bonds across species. The fastest-growing romance hybrid — KU readers can't get enough.

Subgenre · Sci-Fi

LitRPG / GameLit

Stat sheets, XP grinds, dungeons, system messages, virtual realms. The Dungeon-Crawler-Carl / Ready-Player-One wave with a fanatic KU readership.

Subgenre · Sci-Fi

Climate / Cli-Fi

Drowning cities, desertified continents, climate refugees, geo-engineering ethics. The newer subgenre that traditional publishing keeps spotlighting.

Subgenre · Sci-Fi

Biopunk / Genetic

Gene-edits, designer humans, splicer black markets, post-human ethics. Body-horror-edged sci-fi for readers who liked Annihilation.

Subgenre · Sci-Fi

Steampunk / Solarpunk

Brass airships, sunlight cities, alternative-history tech, optimistic-future biotech. Aesthetic-driven sci-fi subniches with passionate readers.

Subgenre · Sci-Fi

AI / Singularity

Sentient AI awakening, post-human transitions, uploaded consciousness, machine gods. The 2026 sci-fi conversation, written into novels.

Subgenre · Sci-Fi

Generation Ship / Colony

200-year voyages, terraforming colonies, isolated populations going strange, contact with what's been waiting on the surface. Slow-burn sci-fi at its purest.

Subgenre · Sci-Fi

Sci-Fi Series & Sagas

5+ book space operas. Multi-arc dystopian trilogies. Recurring crews across many missions. Build a sci-fi saga readers binge in order.

Format · Multi-Book
Our Secret Sauce

AI That Actually Remembers Your Worldbuilding

Most AI writes chapter by chapter and forgets how the FTL drive works. Alien physiology changes between chapters. The empire's faction names quietly shift by chapter 15. The colony's population is 80,000 in chapter 3 and 12,000 by chapter 9.

We solved this. We built the Story Thread Engine — it tracks every tech rule, every faction, every alien species, every star system, every named ship across your entire sci-fi novel, from inciting anomaly to final twist.

Tracks every sci-fi beat from setup to payoff — the inciting anomaly, the first contact, the betrayal, the dark moment, the technological reveal, the war, the resolution

Keeps your characters consistent — the captain's command voice, the engineer's stress habits, the alien diplomat's cultural register, the AI's philosophical quirks

Locks in your tech and physics — FTL rules don't change, alien biology stays plausible, weapon ranges stay realistic, station gravity follows the same logic

Locks in your factions and worlds — empire borders, megacorp hierarchies, alien species' politics, planet populations, named ships, named stations

Plants foreshadowing early and pays it off later — the offhand sensor blip in chapter 2 lands as the alien fleet in chapter 18

Maintains a real-time story state — who's seen what, who's been to which planet, who's lost who, what tech's been deployed, what's classified

The result: AI-generated sci-fi that holds its worldbuilding from page one to the last chapter — the way readers expect from Reynolds, Tchaikovsky, Bujold, Weir.

How Every Chapter Gets Written

Chapter Craft Engine

Remembering your sci-fi world is step one. Writing each chapter like a sci-fi novelist who actually understands pacing and tech-info-dump balance is step two.

Part 1

How Each Chapter Reads Different

8 opening techniques rotated — sensory immersion (the hum of station ventilation, the cold of vacuum suits), character action, dialogue cold open, tech-spec interior monologue, atmospheric wrongness, singular object, physical sensation, environmental contrast. No more five chapters in a row starting with "the next ship-day on the bridge…"
8 ending techniques rotated — image, question, stated intent, dialogue cliff, realization, action mid-motion, emotional beat, singular object. Each sci-fi chapter closes on a hook so readers can't put the book down at midnight.
Chapter-to-chapter continuity — every chapter either picks up a setup from the previous one (the comm signal, the system alert, the missing crewmate) or follows naturally from the protagonist's emotional state. Random ship-hopping vignettes are gone.
Same-location chapters done right — a multi-day jump through hyperspace, a stretch on a colony, a siege of a station. Each chapter feels distinct through time skip, sub-location, character shift, emotional register, beat focus, or POV change.
Previous-chapter ending awareness — the AI sees the actual closing paragraphs of the previous chapter, not just the plot summary. The next chapter bridges from the exact emotional and technical state where the last one left off.
Part 2

The Skeleton Is Built in 3 Passes

Before any chapter is written, the sci-fi structure is validated. After every chapter is finished, it gets validated again.

01

Timeline & System Map

The full sci-fi timeline and scene-by-scene flow are mapped first — so transit times, light-year distances, FTL durations, and faction movements line up across the entire saga. No "three days later" that turns out to be impossible at sub-light speed.

02

Chapter Writing

Each chapter is written using the craft techniques above — opening, ending, continuity, location handling — applied chapter by chapter, always aware of what came before in the sci-fi arc.

03

Worldbuilding & Tech Audit

A second pass scans the finished book for accidentally rushed pacing or tech-rule contradictions — so the FTL drive doesn't suddenly outrun light by a factor of ten in chapter 14, the AI's capabilities stay defined, and the resolution feels earned.

The result: sci-fi chapters that feel hand-written, plotted, and edited — not auto-generated.

This Isn't Another AI Writer.
This Is a Sci-Fi Machine.

Plot, alien factions, hard tech rules, dual-POV chapters, cinematic chase scenes, sci-fi covers, character art — everything a real sci-fi novel needs, generated in minutes.

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AI Sci-Fi Generation

Drop your premise, pick your subgenre, and the AI writes the whole novel. Plot beats, scene-by-scene narrative, crew dialogue, and faction-political arcs — chapter after chapter, it reads like a published space opera or hard sci-fi.

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Story Continuity Engine

Tech rules never contradict themselves. Star systems never magically swap. Subplots about the rogue AI never get dropped. Our AI tracks every plot thread, every faction, and every revelation across your entire sci-fi novel — so the saga stays airtight from inciting anomaly to resolution.

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Crew, Faction & World Builder

Distinct crew voices, believable rank-and-file dynamics, alien diplomats with cultural register, and a fully built sci-fi universe — star systems, megacorps, empires, alien species, FTL physics, named ships — consistent across the whole book.

language

Many Languages Supported

Write your sci-fi novel in any major language to reach global readers. Generate sci-fi fiction in English, Spanish, German, French, and many other languages to publish in any KDP market your readers buy from.

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Cinematic Sci-Fi Covers

Cinematic, genre-coded covers that look like they belong on the sci-fi bestseller shelf. Spaceship silhouette, neon cyberpunk skyline, dystopian wasteland, alien planet, military space marine — the AI matches your subgenre's vibe so readers instantly recognize the genre.

image

AI Character & World Art

Custom character portraits and chapter art of your sci-fi world — the captain, the alien diplomat, the bridge of the starship, the colony surface, the dystopian megacity. Perfect for special editions, Bookstagram and book trailer content.

edit_note

Sci-Fi Beat Sheet Built In

Every novel is built on the proven sci-fi arc — ordinary world, inciting anomaly, mission brief, escalation, dark moment, technological/strategic reveal, climax, resolution. The AI also bakes in subgenre-specific pacing (tight cyberpunk, sweeping space opera, slow-burn hard sci-fi).

psychology

Voice, Tone & Tech Prose

Sharp captain command voice, engineer slang, alien register, AI philosophical detachment, dystopian whisper. Voice and prose rhythm match your subgenre's mood — cyberpunk noir-tight, space opera operatic, hard sci-fi precise, dystopian breathless.

auto_stories

Every Sci-Fi Subgenre

Space opera, hard sci-fi, cyberpunk, dystopian, post-apocalyptic, military, first contact, time travel, sci-fi romance / alien mates, LitRPG, climate fiction, biopunk, steampunk, AI/singularity, generation ship. The AI knows what each subgenre needs.

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KDP-Ready Export

Download your finished sci-fi novel as a professionally formatted PDF, EPUB, or DOCX — ready to upload directly to Amazon KDP, Kobo, Apple Books, or any platform you choose. Drop caps, scene breaks, glossary support, all done.

Built for Sci-Fi Authors

10 Ways to Tell Your Sci-Fi Novel

Third-person multi-POV owns space opera and military sci-fi. First-person owns cyberpunk, dystopian and LitRPG. Pick what your readers expect on the page.

Space Opera Bestseller Format

Third Person, Past — Multi POV

space opera military sci-fi first contact epic saga

Captain + crew + alien diplomat + rival empire chapters. The Expanse / Bujold-coded format that anchors space opera and military sci-fi sagas.

Cyberpunk / Noir Format

First Person, Past — Single POV

cyberpunk noir sci-fi PI sci-fi

Tight first-person voice in a neon-soaked megacity. The Neuromancer / Altered-Carbon-coded format for cyberpunk and noir-edged sci-fi.

YA / Dystopian Format

First Person, Present — Single POV

YA dystopian post-apocalyptic in-the-moment

Immediate "I am here right now" narration. The Hunger-Games / Divergent-coded format that owns YA dystopian and post-apocalyptic.

Hard Sci-Fi Format

First Person, Past — Single POV (Engineer/Scientist)

hard sci-fi survival engineering

Single technical-minded narrator working the engineering problem from the inside. The Martian / Project-Hail-Mary-coded format for hard sci-fi and survival.

Third Person, Past — Single POV

classic sci-fi crossover thriller

Closer-to-the-protagonist narration with sci-fi distance. Right for sci-fi crossing into thriller / techno-thriller territory.

Third Person, Present — Multi POV

cinematic action sci-fi

Modern punchy multi-POV sci-fi prose. Cinematic immediacy across multiple players — right for action-driven sci-fi and disaster-scale stakes.

Third Person Omniscient, Past

epic saga multi-generation

All-knowing narrator who can step into any crew, any species, any era. Right for sweeping multi-generation space sagas.

First Person, Present — Multi POV

LitRPG poly-protagonist

Multiple "I am here" narrators. Right for LitRPG party-based stories and ensemble dystopian arcs.

Epistolary / Found-Document

log entries found-data

Story told through ship logs, leaked transmissions, classified files, post-mission reports. The Illuminae / World-War-Z-coded format.

Custom — Describe in Tone & Voice

advanced hybrid

Power-user escape hatch. Describe a non-standard sci-fi hybrid (mixed POV, alien-narrator, AI-narrator, multi-timeline) in Tone & Voice and the AI will follow it.

Whatever the sci-fi subgenre, the AI matches the POV craft conventions sci-fi readers already expect.

Write Your Sci-Fi Novel in 4 Simple Steps

From one "what if" premise to a finished, KDP-ready sci-fi novel

1

Define Your Subgenre & World

Pick your subgenre (space opera, hard sci-fi, cyberpunk, dystopian, military, first contact, LitRPG, sci-fi romance…), sketch your crew or protagonist, set your worldbuilding rules, choose length and tone. The AI takes it from there.

2

AI Writes Everything

Our AI generates the full sci-fi novel — inciting anomaly, scene-by-scene chapters, crew dialogue, faction politics, technological reveals, and chapter art. The Story Thread Engine keeps tech rules, alien species and star systems consistent from page one to resolution.

3

Pick Your Cover

Choose a sci-fi-perfect cover designed to look like a bestseller on Amazon. Spaceship silhouette, neon cyberpunk skyline, dystopian wasteland, alien planet, military space marine — whatever your subgenre's vibe is.

4

Publish & Sell

Export your finished sci-fi novel as PDF, EPUB, or DOCX — ready for Amazon KDP, Kobo, Apple Books, or your own author store. Or print paperbacks. You keep 100% of every sale.

Included With Every Sci-Fi Novel

Meet the Author Launch Kit. Your Sci-Fi Novel Sells Itself.

You wrote the book. Now Bookstagram wants character cards of your starship captain. BookTok wants aesthetic quotes from the dystopian dark moment. Your newsletter needs teasers about the alien first contact. Suddenly you're spending more time in Canva than you ever spent worldbuilding.

Not anymore. The Author Launch Kit auto-generates your entire sci-fi marketing arsenal the moment your book is done.

📇

Character Cards

4–6 per book

Visual cards for your captain, crew and alien diplomats featuring AI-generated portraits, personality traits, trope tags like "Starship Captain" or "Rogue AI," and an actual quote your character says in the book.

Sci-fi character card example
Sci-fi character card example
Sci-fi character card example

Each card features a full AI-generated portrait styled to match your sci-fi subgenre, key personality traits, and trope tags that sci-fi readers instantly recognize — "Starship Captain," "Rogue AI," "Alien Diplomat," "Cyberpunk Hacker," "Resistance Leader."

Cards are sized at 1080×1350px, optimized for vertical social media. The styling automatically matches your book's setting — deep space black for space opera, neon for cyberpunk, dust-and-rust for post-apocalyptic, sterile chrome for hard sci-fi, alien biomes for first contact.

Where to use them: Bookstagram sci-fi-aesthetic posts, BookTok crew-introduction videos, Pinterest sci-fi mood boards. The trope-tag format is native to how sci-fi reader communities talk about characters.

✨

Aesthetic Quotes

8–10 per book

The system scans your entire sci-fi novel and pulls out the most quotable lines — the philosophical AI monologue, the captain's command, the dystopian rebel's declaration, the dark-moment realization — then places them on AI-generated backgrounds that match the cinematic atmosphere.

Sci-fi aesthetic quote example
Sci-fi aesthetic quote example
Sci-fi aesthetic quote example

Star-streaked black for space opera. Neon magenta and electric blue for cyberpunk. Rust-orange wasteland for post-apocalyptic. Sterile chrome for hard sci-fi. The AI matches the visual atmosphere to your novel automatically.

Two sizes included: 1080×1080px for your Instagram feed, and 1080×1920px for Stories and TikTok.

Where to use them: Aesthetic sci-fi quotes are core content on sci-fi Bookstagram and BookTok. Cinematic-quote carousels and crew-introduction reels are how readers discover new sci-fi authors.

🔥

Teaser Texts

5 per book

Short 100–200 word excerpts from your sci-fi novel's highest-tension scenes — the inciting anomaly, the first contact, the betrayal, the dark moment, the just-before-twist beat. Each one drops you right into the moment and cuts off before the resolution.

Every teaser comes with a hook line like "By the time the signal arrived, the colony was already gone…" ready for your next BookTok video, Instagram caption, or email newsletter blast.

The AI identifies the most cinematic and emotionally charged scenes in your sci-fi novel and extracts the passages that will make readers need to know what happens next.

Where to use them: BookTok video overlays (text-on-screen with cinematic audio), Instagram captions, email newsletter hooks, and Goodreads updates. Sci-fi teasers with cinematic visuals are one of the top-performing content formats in the genre.

All auto-generated from your book's text and Story Thread Engine data. No copy-pasting. No Canva templates. No designer.

Your sci-fi novel is ready. Now your marketing is too.

Who Is BookNova for Sci-Fi Writers?

Built for sci-fi authors who want to publish more books in their saga — without staring at the same worldbuilding spreadsheet for months

Aspiring Sci-Fi Authors

  • Your first sci-fi novel
  • Sci-fi novellas & short reads
  • Try every subgenre without risk
  • Finally finishing that space opera draft
  • And much more...

KDP Sci-Fi Publishers

  • Amazon KDP sci-fi novels
  • Multi-subgenre catalog
  • Rapid release publishing
  • Backlist expansion
  • And much more...

Sci-Fi Saga Authors

  • 5+ book space operas
  • Consistent universes across all books
  • Recurring crew & alien factions
  • Series bible handled by AI
  • And much more...

Space Opera & Military Sci-Fi Authors

  • Galactic empires & starship crews
  • Multi-faction interstellar war
  • Space marines & fleet operations
  • Recurring captain across many missions
  • And much more...

Cyberpunk & Hard Sci-Fi Writers

  • Neon-soaked megacities
  • Megacorp shadow wars
  • Real-physics hard sci-fi
  • Engineering-problem survival
  • And much more...

Dystopian & Post-Apoc Authors

  • YA dystopian trilogies
  • Post-apocalyptic survival
  • Climate fiction (cli-fi)
  • AI / singularity arcs
  • And much more...

LitRPG / GameLit Authors

  • Stat sheets & XP grinds
  • Dungeon-crawl progression
  • System-message arcs
  • Long KU-binge series
  • And much more...

NaNoWriMo Writers

  • Hit your 50k word sci-fi goal
  • Beat worldbuilding-paralysis writer's block
  • Finish that space opera draft
  • Year-round drafting power
  • And much more...

Sci-Fi Hybrid Authors

  • Sci-fi romance / alien fated mates
  • Sci-fi thriller / techno-thriller
  • Sci-fi horror crossover
  • Steampunk / solarpunk
  • And much more...

Everything You Need to Write & Sell Sci-Fi

Every plan writes complete, publish-ready novels with the full AI engine — no word-count traps, no watermarks, no per-book fees. Higher plans add more monthly credits and the extras listed under Pro and up and Platinum and up.

In every plan

  • check_circleMonthly Credits That Refresh Forever
  • check_circleAI-Written Plot, Crew Dialogue & Chapters
  • check_circleBeautiful Chapter Layouts & Drop Caps
  • check_circleSci-Fi Beat Sheet Built In
  • check_circleAI Chapter Illustrations & Character Art
  • check_circleCinematic Sci-Fi Cover Designs
  • check_circleMany Languages for Global Readers
  • check_circleExport to PDF book
  • check_circleStory Thread Engine

Pro and up

  • add_circleExport to EPUB & DOCX
  • add_circleReady for Amazon KDP, Lulu & Draft2Digital
  • add_circleAuthor Launch Kit — character cards, quotes & teasers

Platinum and up

  • add_circleSeries Writing — sagas & companion series
  • add_circleManuscript import — finish a book you started

Author Launch Kit Pro and up

  • Character Cards
  • Aesthetic Quotes
  • Teaser Texts

AI Models Included

  • Text: Gemini, Claude, OpenAI, LLaMA, DeepSeek
  • Image: Imagen, Ideogram, Flux
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Limited-time lifetime offer One-time payment — no subscription, no recurring charges.
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30-Day Money-Back Guarantee

Not satisfied? Get a full refund within 30 days. No questions asked.

Nothing to install. Just open your browser.

Your login arrives by e-mail the moment you pay. Start writing right away.

  • desktop_windowsWindows
  • laptop_macMac
  • tablet_maciPad
  • smartphoneiPhone & Android
  • check_circle No download
  • check_circle No setup
  • check_circle Books saved in your account

Sci-Fi Writing — Frequently Asked Questions

Everything you need to know about writing your sci-fi novel with BookNova

BookNova is built specifically for fiction — and sci-fi is one of its strongest niches. The AI knows the subgenres (space opera, hard sci-fi, cyberpunk, dystopian, post-apocalyptic, military, first contact, time travel, sci-fi romance, LitRPG, climate fiction, biopunk, steampunk, AI/singularity, generation ship), the beats (inciting anomaly, mission brief, escalation, dark moment, technological reveal, climax), and the genre's voice (captain command voice, alien register, AI philosophical detachment, dystopian whisper). Pick your subgenre, sketch your crew or world, and the AI writes a complete sci-fi novel.

Yes — this is exactly what the Story Thread Engine is built for. The biggest pain in writing sci-fi is keeping FTL drive rules, alien physiology, faction borders, ship classes and named systems consistent across 90k+ words. BookNova tracks all of it in real time. The empire that controls the Outer Rim in chapter 3 still controls it in chapter 23. The FTL drive that takes 4 days to cross a sector still does in chapter 18. No more "wait, I already established that…"

Both. You set the level. For hard sci-fi (Andy-Weir-coded), the AI sticks to real physics — orbital mechanics, light-speed limits, engineering-problem solutions. For soft sci-fi or space opera, you can define your own rules (FTL, force fields, energy weapons) and the Story Thread Engine will keep them consistent. Same for cyberpunk: you decide whether neural-net hacking is realistic or stylized, and the AI honors it across the whole book.

1 credit = 1 word generated. Most sci-fi novels run 90,000–130,000 words (the genre runs longer because of worldbuilding density). Hard sci-fi and space opera often run 100k+. A sci-fi novella runs 30,000–50,000. Your monthly credits refresh automatically every month, letting you write a full-length sci-fi novel plus a novella — month after month on a single one-time payment, perfect for indie authors building a space opera saga.

Yes — this is one of the most popular sci-fi use cases. Keep the same star systems, alien factions or megacorps across multiple books, bring back side characters (the alien diplomat, the rival captain) as future POV protagonists, and build a connected sci-fi saga that readers will binge. The Story Thread Engine maintains worldbuilding consistency from book to book within your saga.

No additional payments required. All AI models are fully included — Gemini, Claude, OpenAI, LLaMA, DeepSeek for text, and Imagen, Ideogram, Flux for image. No API keys to manage. Buy a plan, log in, write your sci-fi novel.

It's a one-time payment — no subscription, no recurring charges. After purchase, your credits automatically refresh every month based on your plan (Lite, Pro, Platinum, or Author). Pay once, write sci-fi forever.

We offer a 30-day money-back guarantee, no questions asked. If your first sci-fi novel doesn't meet your expectations, contact support and we'll process your full refund within 24 hours.

Most sci-fi novels generate in 60 to 120 minutes — longer than contemporary fiction because of worldbuilding density and word count. A sci-fi novella can be ready in 40 minutes. A full-length 100k-word space opera takes about 90 minutes. You define your subgenre, your world, and your crew — the AI handles plotting, scene-by-scene writing, dialogue, faction politics, tech setup, character art, and the cover. What would normally take 6–18 months is done in one sitting.

Yes, absolutely. You get full publishing rights and keep 100% of the royalties. Publish on Amazon KDP, Kobo, Apple Books, Barnes & Noble, your own author website, or any platform. Print paperbacks, release ebooks in Kindle Unlimited, build a sci-fi saga — the books are yours to publish and monetize however you want.

BookNova writes native-quality sci-fi in 24 languages: Croatian, Czech, Danish, Dutch, English, English (Australian), English (British), Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Norwegian, Polish, Portuguese (Brazilian), Portuguese (European), Romanian, Slovenian, Spanish, Swedish. Reach sci-fi readers worldwide — the AI generates each novel in its native language with proper subgenre conventions.

The BookNova app itself (menus, buttons and guides) is in English. Your book is written in the language you choose.

Subgenres: Space Opera, Hard Sci-Fi, Cyberpunk, Dystopian, Post-Apocalyptic, Military Sci-Fi, First Contact, Time Travel, Sci-Fi Romance / Alien Mates, LitRPG / GameLit, Climate Fiction (Cli-Fi), Biopunk / Genetic, Steampunk / Solarpunk, AI / Singularity, Generation Ship / Colony.

Tropes: Rogue AI, First Contact Gone Wrong, Found Family Crew, Reluctant Captain, Empire vs. Rebellion, Megacorp Shadow War, Alien Mates, Lost Colony, Dystopian Awakening, Survival Engineering Problem, Time Loop.

Tone: Hard real-physics, soft space opera, gritty cyberpunk noir, sweeping epic, military procedural, philosophical AI — you set the level.

No. BookNova runs in your web browser — Chrome, Safari, Edge or Firefox — on Windows, Mac, iPad, iPhone or Android. There is nothing to download and nothing to set up. Your login link arrives by e-mail the moment you pay, so you can start writing your first book within minutes. Your books are saved in your account, so you can pick up where you left off on any device.

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