Hard SF, space opera, cyberpunk, cli-fi — the workshop that holds the universe.
Sci-fi writing software built for demanding authors: modular narrative plan (kishōtenketsu for speculative SF, three-act for space opera), scientific worldbuilding linked to the text, living technical glossary, AI that learns your universe instead of inventing its own, export ready for Tor, Orbit, or the Hugo / Nebula / Clarke shortlists.
Structure
Modular narrative plan: simple three-act for space opera, or kishōtenketsu for speculative SF that pivots rather than climaxes.
Space opera and hard SF aren't built the same — your tool should follow.
Pick the skeleton that fits your project: three acts for stellar adventure, kishōtenketsu (introduction, development, twist, resolution) for short speculative fiction à la Ted Chiang, or free outline for climate fresques. Each step accepts your notes and links to your chapters.
From the first speculative spark to a manuscript ready to submit.
Catch the idea that unsettles, build a universe that holds together, write characters who aren't just narrative functions, check scientific consistency, submit — without burning out or losing your voice.
Sci-fi manuscripts don't die for lack of good ideas.
The obvious. Scientific inspiration shows up the moment the author no longer fights her tool to find a species name invented three chapters earlier.
Three promises, atop a stack of features.
Hold scientific worldbuilding, support character arcs without reducing people to functions, ship a manuscript ready to go — Tor or self-publishing.
The universe holds as the manuscript grows.
Technology, Physical Law, Species, Place, Event, Faction sheets linked to text via @mention. Built-in glossary, chronological storyboard, modular narrative plan (kishōtenketsu or three-act).
An AI that suggests, never replaces.
The AI reads your glossary, your laws, your characters. It continues, rewrites, checks consistency — never invents a tech that contradicts your canon.
From finished manuscript to publisher — no patch-up job.
Publisher-spec DOCX for Tor / Orbit / Subterranean, EPUB for Hugo / Nebula / Clarke beta circles, book-quality PDF for self-publishing. Automatic glossary appendix, title page with contact, ISBN if self-publishing.
Give your project a real reading address.
Once the text is ready, you don't have to leave Extypis to find your first readers. Publish in one click on the public catalog and give your book a clean, readable, shareable page.
Published directly on Extypis — no fees, no middleman.
Publishing opens a dedicated page for your project: cover, title page, chapters, table of contents. The content is frozen at publication, so your readers always see a stable version while you keep working. You decide when to push a new version.
A reading page for each project
Customizable URL, title page, cover, table of contents and chapter-by-chapter navigation.
A catalog that helps readers find your book
Your project can appear in the public catalog, categories, subcategories and trending page — or stay accessible only through the direct link.
Readers who can actually react
Readers can comment chapter by chapter, mention a specific paragraph, and you get notified for every feedback.
A stable version without breaking your work
The text is frozen at publication time. You keep writing on your side, then decide when to push an update.
Everything Extypis unlocks for you
Hold your story, from outline to final page.
Narrative tools you won't find elsewhere — turn a tangle of ideas into a structure that holds.
AI that suggests, never replaces
The AI permanently sees your whole project — outline, sheets, scenes already written. Every rewrite, every completion, every suggestion, every cover stays consistent with your entire work, and at no extra cost or setup. You approve every word.
Estimates if you only use this feature. Credits are shared across every AI tool.
Daily writing comfort
Everything that makes long-form writing sustainable: shortcuts, templates, anchored notes, versions, goals.
Ship a book, not a file.
From manuscript to finished book: professional exports, academic citations, direct publishing.
Analyse and refine your prose
Style tools that go beyond the spell-checker: readability, poetic meter, repetitions, connectors, passive voice.
Lifetime updates
Every future Extypis innovation included, no extra cost, no paywall.
Backing an indie project
Extypis is an independent, self-funded project — no ads, no venture capital.
Human support
Got a question? You talk directly to the creator, never a chatbot.
Free to begin, even to finish. Serious when you need to go deeper.
The work of worldbuilding and writing is entirely yours. The subscription gives you a thoughtful co-pilot, an occasional co-author, and an objective reader fluent in speculative fiction's demands.
Frequent questions, plain answers (still friendly).
Does Extypis work for hard SF as well as space opera ?
Yes — it's one of our strongest use cases. For hard SF à la Liu Cixin or Adrian Tchaikovsky, combine the narrative plan (kishōtenketsu for speculative fiction or classic three-act) with the dedicated worldbuilding sheets : physical laws, technologies, ecosystems. For space opera à la Becky Chambers or Ann Leckie, prioritize Character + Faction + Place sheets. Both logics coexist without patch-ups.
How does Extypis maintain a living technical glossary across an entire SF cycle ?
Each speculative term (xenolinguistic, species, technology, faction) gets its own sheet in the project. Type `@` in the text to insert the correctly spelled term — the app autocompletes from existing sheets. On export, the glossary can be appended, ready for publisher submission. Across a multi-book cycle, you avoid pages of side notes scattered across 5 files.
A generic AI will invent inconsistent technobabble. Is yours different ?
Yes. Extypis's AI reads your glossary, your technology sheets, your physical laws before proposing anything. When it continues a cyberattack scene, it uses your terms, your canon, your proper nouns. No disguised Force, no generic Star-Trek-ism. For those who want to write entirely without AI, that's fine too: all AI tools are optional, the app remains fully functional without them.
How do I submit my manuscript to Tor or Orbit ?
One-click publisher-spec DOCX export: 12pt font, double spacing, title page with contact, 1-inch margins. Automatic glossary appendix if your project has one. For Hugo / Nebula / Clarke beta circles, book-quality EPUB. For self-publishing competitions, DOCX or PDF depending on submission rules.
Can the AI really respect the scientific rigor of hard SF ?
The AI proposes, you decide. It won't verify your equations for you — that's the author's job. But it respects the constraints you've set in your sheets (max speed, voyage duration, quantum communication mechanics). It catches internal contradictions: if your ship travels at 0.99c in chapter 5 and instantly in chapter 22, the consistency check flags it. Rigor stays your responsibility, the AI holds the memory.
What does « Extypis » mean ?
« Ex typis » is a Latin formula that appeared on the frontispieces of printed books from the 16th to 18th centuries, right before the printer's name — literally « from the presses of… ». The word derives from the Greek τύπος (typos): imprint, model, mark left behind. That's exactly the lineage we claim: a digital workshop that prepares your manuscripts in the great European typographic tradition, until they're worthy of being printed.
I built the writing app I'd always wished for.
Having finished a novel after several attempts, and built up years of poetry — kept right here, on Extypis — I saw firsthand how many writing blocks are really method problems, easy to move past once you give yourself the right tools. Technique doesn't replace imagination — it carries it. If you write sci-fi seriously, Extypis is for you too.