I've always found SFF authors fascinating. While romance authors think in terms of "reader expectations" and non-fiction authors think about "target audiences," SFF authors think in terms of worlds. You're not just writing a book — you're building a place readers can inhabit.
This is both your greatest strength and your greatest challenge. The investment readers make in learning your world is substantial. Once they're in, they're in — they'll buy everything you write. But getting them through the door of that first book takes work.
Self-publishing has become the preferred path for many SFF authors, particularly in subgenres that traditional publishing underserves: LitRPG, progression fantasy, hard sci-fi, and the endless variations that passionate readers crave. Here's how to succeed.
Why Series Are Non-Negotiable in SFF
In romance, series boost readership. In SFF, series are virtually mandatory.
The math is simple. It takes significant effort to learn a new magic system, political structure, or alien civilization. Readers don't want to make that investment for a single book. They want to live in your world across multiple stories. The best-selling indie SFF authors aren't known for individual books — they're known for their worlds.
Series Structures That Work
The Epic Series (3-12+ books): One continuous story arc across multiple books. Think Brandon Sanderson's Stormlight Archive or your favorite fantasy epic. The most demanding to plot but creates the deepest reader investment.
The Episodic Series: Same world and often same characters, but each book tells a relatively complete story. Think Dresden Files or many urban fantasy series. Easier to write and publish quickly since you're not juggling a decade-spanning plot.
Connected Standalones: Different protagonists in the same world. Each book can be read independently, but reading them all rewards you with a richer understanding. This works better for sci-fi than fantasy, in my experience.
Planning for Series Success
Don't write book one without knowing where the series goes. You don't need a detailed outline of every book, but you need to know:
- How many books you're planning
- The major beats of the overall arc
- What the end looks like
- Which characters survive
I've seen too many authors paint themselves into corners because they didn't plan ahead. Book three ends up contradicting book one because the author didn't know where the story was going. SFF readers are detail-oriented. They will notice.
Length: Writing to Reader Expectations
SFF readers expect more words than almost any other genre. Here's what's typical:
| Subgenre | Typical Length | Notes |
|---|---|---|
| Urban Fantasy | 70,000–90,000 words | Closer to thriller pacing; can be shorter |
| Space Opera | 90,000–120,000 words | World-building requires more room |
| Epic Fantasy | 100,000–180,000 words | Readers expect substantial books |
| LitRPG/Progression | 80,000–120,000 words | Serial format can allow shorter installments |
| Hard Sci-Fi | 80,000–110,000 words | Tight prose but complex concepts |
Here's my honest take: don't artificially inflate your word count, but also don't feel pressured to cut a 130,000-word story to 80,000 because someone told you "shorter is better." In SFF, readers want the epic scope. Give it to them.
Pricing Longer Books
This is where many SFF authors leave money on the table. Longer books should be priced higher.
Ebooks: A 150,000-word epic fantasy should be $5.99-$7.99, not $3.99. Readers understand they're getting more content. Underpricing signals you don't value your work — and experienced SFF readers will be suspicious of an epic priced like a novella.
Paperbacks: Print-on-demand costs scale with page count. A 500-page book costs significantly more to print than a 250-page book. You must price accordingly. For a 150,000-word fantasy, $17.99-$22.99 is reasonable. Amazon's 70% royalty tier for Kindle caps at $9.99, but on Books.by, you keep 100% royalties at any price — so you're not penalized for pricing appropriately.
Cover Art: Where SFF Demands Excellence
SFF readers are visual. They grew up with Tolkien covers, Star Wars posters, and video game art. Your cover is competing with decades of genre-defining imagery.
The good news: great SFF covers can be commissioning works of art. The bad news: mediocre SFF covers are immediately obvious and will sink your book.
What Works by Subgenre
Epic/High Fantasy: Dramatic landscapes, often with a lone figure. Think sweeping vistas, castles, mountains, magical phenomena. Illustrated rather than photo-manipulated. Rich, saturated colors.
Urban Fantasy: Character-focused, often showing the protagonist in action. City backdrop with supernatural elements. Darker palette, often with signature color accents (magic glow, etc.).
Space Opera: Spaceships, planets, vast scale. Can be illustrated or rendered. Often features technology and cosmic scope. Clean lines, often cooler color palette (blues, purples, blacks).
Hard Sci-Fi: Often more minimalist. Strong typography. May feature technology or conceptual imagery rather than characters. Think film poster more than illustration.
LitRPG/Progression: Character in action, often with visible progression elements (levels, skills, magical auras). Illustrated style dominates. Anime/manga influence is acceptable in this subgenre.
Commissioning Cover Art
Budget $400-$1,200 for a professional SFF cover. This is more than romance (where premade covers work fine) because SFF covers are usually custom illustrations.
Find artists who specialize in your subgenre. Look at the covers of successful books in your category, check the artist credits, and research their availability. Many SFF cover artists have waitlists of months.
Include your cover artist in series planning. Covers need visual consistency across a series, and changing artists mid-series can damage brand recognition.
World-Building Elements: Maps, Appendices, and Extras
SFF readers love extras. Maps, glossaries, pronunciation guides, character lists — these aren't padding. They're features.
Maps
For epic fantasy, a map is virtually expected. It helps readers follow your story and adds perceived value. Commission a professional map ($100-$400) if cartography isn't your skill.
Practical considerations:
- Print: Full-page map at the front. Black and white works fine, though color is lovely for special editions.
- Ebook: Ensure the map is legible on small screens. Consider including a link to a high-resolution version readers can view separately.
Appendices
Glossaries, character lists, and pronunciation guides belong at the back of the book. Putting them at the front intimidates new readers — it signals "this book is complicated enough to need a glossary before you even start."
Many SFF authors also offer expanded lore — histories, cultural details, technical specifications — as bonus content for newsletter subscribers. This serves double duty: it rewards engaged fans and grows your mailing list.
Marketing to SFF Fans
SFF has some of the most engaged fan communities in publishing. The challenge is breaking into these communities authentically, not showing up just to sell.
Where SFF Readers Gather
Reddit: r/Fantasy (1.5 million members), r/printSF (sci-fi focused), r/litrpg (for that subgenre), and countless smaller subs. Reddit is allergic to self-promotion — you need to be a genuine participant first.
Discord: Many SFF authors run Discord servers for their fans. There are also genre-wide servers where authors and readers interact. These can become powerful communities.
Goodreads: SFF readers are highly active on Goodreads. Ratings and reviews here carry significant weight. Getting your book on popular "shelves" and reading lists matters.
BookTok: Growing but still behind romance and thriller. Fantasy has more presence than sci-fi currently. Romantasy (fantasy romance crossovers) does particularly well.
Conventions: GenCon, DragonCon, WorldCon, and countless regional cons. Having a presence (even virtually) can build serious fan connections.
Newsletter Swaps and Cross-Promotion
Partner with other SFF authors to cross-promote to each other's mailing lists. Find authors in similar subgenres with comparable list sizes. This is one of the most reliable ways to grow your audience.
The Direct Sales Opportunity for SFF
SFF readers are collectors. They don't just want ebooks — they want beautiful physical editions.
This is where selling direct becomes powerful. On Books.by, you can offer:
- Special editions: Sprayed edges, foil stamping, alternative covers. Price these at $29.99-$49.99. Your most devoted fans will buy them.
- Signed bookplates: Include a signed bookplate with direct orders. Easy to do and fans love it.
- Series bundles: Sell your complete trilogy at a slight discount. Readers who buy all three at once represent higher lifetime value.
- Ebook + Print bundles: Offer the ebook free with print purchase. Readers get the format they prefer for each situation.
The math matters here too. A $19.99 paperback on Amazon might earn you $4-5. The same book sold through Books.by earns you $12+. And special editions at $35 can earn you $20+ per sale — money that can fund cover art for your next book.
Calculate Your Royalties
See how much more you could earn selling sci-fi & fantasy books directly through Books.by compared to Amazon KDP.
Your World Deserves Its Own Kingdom
Build your own bookstore. Sell direct to fans. Offer special editions at any price. Keep 100% of royalties. $99/year for unlimited worlds.
Publishing Cadence for SFF
SFF readers are patient — to a point. They'll wait a year between epic fantasy installments. They won't wait three years while you "perfect" your prose.
Recommended cadence:
- Epic fantasy: One book per year is acceptable. Faster is better.
- Urban fantasy: 2-4 books per year is typical for successful authors.
- LitRPG: This genre rewards rapid release. Some successful authors release monthly.
- Sci-fi: 1-2 books per year is standard.
If you're writing 150,000-word epics, one per year is reasonable. If you're writing 60,000-word LitRPG installments, you can (and probably should) release much faster.
Kindle Unlimited vs Wide for SFF
This is less settled in SFF than in romance. Both strategies can work:
Case for KU: LitRPG, progression fantasy, and some fantasy romance niches perform well in KU. Readers in these subgenres binge-read and appreciate subscription access.
Case for wide: More serious SFF readers often prefer to own their books. They buy from Kobo, Apple, Google Play, and directly from authors. Going wide gives access to these readers and protects you from Amazon algorithm changes.
My observation: the SFF authors building the most sustainable careers are going wide + direct sales. They use Amazon for visibility, sell on other retailers for additional income, and drive their engaged fans to buy direct. This diversifies income and builds true reader ownership.
Frequently Asked Questions
Yes, and increasingly so. Some of the most successful indie authors write SFF. The genre has passionate fans who buy complete catalogs. The challenge is breaking through initially. SFF self-publishing rewards series writers, consistent releasers, and authors who engage with fan communities.
Fantasy readers expect longer books. First novels are typically 90,000-120,000 words. Epic fantasy can run 150,000-200,000+ words. Don't artificially inflate, but don't cut an epic-length story to match other genres. Price accordingly for both ebook and print.
Dramatic scenes, characters in action, or evocative environments. Must clearly signal the subgenre. Illustrated covers are common and often preferred. Typography should be bold and readable at thumbnail size. Budget $400-$1,200 for professional SFF cover art.
Maps are expected for epic and secondary-world fantasy. They add perceived value and help readers navigate. Appendices (glossaries, character lists) are appreciated for complex series. Place them at the back to avoid intimidating new readers.
Series dominate SFF more than almost any other genre. Readers invest heavily in learning your world and want to stay there. Plan for at least a trilogy if you're serious about building an SFF career.
Longer books should be priced higher. Ebooks: $5.99-$7.99. Paperbacks: $17.99-$22.99 depending on page count. SFF readers accept higher prices because they understand they're getting more content. Don't underprice epic-length work.
Reddit (r/Fantasy, r/printSF, r/litrpg), Discord servers, Goodreads, and growing BookTok. Newsletter swaps with other SFF authors work well. Convention appearances build fanbase. SFF fans are highly engaged in online communities.