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Science Fiction (Lesbian, Gay, Bisexual & Transgender Books › Science Fiction & Fantasy, Books): Amazon KDP category data

Amazon Books Best Sellers data for Science Fiction (Lesbian, Gay, Bisexual & Transgender Books › Science Fiction & Fantasy, Books), updated Nov 3, 2026: median price $11.25, median 632 reviews, average rating 4.3 and a KDPTop opportunity score of 23/100 (highly competitive).

23Opportunity / 100
$11.25Median price
632Median reviews
Price range (middle 50%)$4.74 – $16.20
Average rating4.3
New releases (90 days)7%
Books on the list100
StoreBooks

What stands out

  • At $11.25 its median price is below 85% of Books categories, so it is a volume game.
  • Its review barrier is higher than in 79% of Books categories: the median best seller has 632 reviews, so new books need time to build up.
  • Prices spread wide: the middle half runs from $4.74 to $16.20, so budget editions and premium or boxed sets sell side by side.

Top 10 Science Fiction best sellers

  1. As You Wake, Break the Shell: A Novel book cover by Becky Chambers

    As You Wake, Break the Shell: A Novel

    by Becky Chambers

    • List rank#1
    • Price$24.95
    • Rating4.8
    • Reviews219

    View on Amazon · Full data on KDPTop

  2. The Long Way to a Small, Angry Planet: A National Bestseller: An Acclaimed Space Opera of  book cover by Becky Chambers

    The Long Way to a Small, Angry Planet: A National Bestseller: An Acclaimed Space Opera of Found Family, Love, and Adventure in the Far Reaches of the Universe (Wayfarers Book 1)

    by Becky Chambers

    • List rank#2
    • Price$14.99
    • Rating4.4
    • Reviews30,978

    View on Amazon · Full data on KDPTop

  3. You Weren't Meant to Be Human: A Novel book cover by Andrew Joseph White

    You Weren't Meant to Be Human: A Novel

    by Andrew Joseph White

    • List rank#3
    • Price$2.99
    • Rating4.0
    • Reviews1,090

    View on Amazon · Full data on KDPTop

  4. Moss'd in Space book cover by Rebecca Thorne

    Moss'd in Space

    by Rebecca Thorne

    • List rank#4
    • Price$11.99
    • Rating4.5
    • Reviews817

    View on Amazon · Full data on KDPTop

  5. Ensnared: Brutes of Bristlebrook, Book 1 book cover by Rebecca Quinn

    Ensnared: Brutes of Bristlebrook, Book 1

    by Rebecca Quinn

    • List rank#5
    • Price$23.27
    • Rating4.4
    • Reviews12,943

    View on Amazon · Full data on KDPTop

  6. When There Are Wolves Again: WINNER of the 2026 Arthur C. Clarke Award book cover by E. J. Swift

    When There Are Wolves Again: WINNER of the 2026 Arthur C. Clarke Award

    by E. J. Swift

    • List rank#6
    • Price$0.99
    • Rating4.5
    • Reviews389

    View on Amazon · Full data on KDPTop

  7. Abducted By The Alien Commander: A Gay Awakening M/M Romance with Straight To Gay Age Gap, book cover by Audra Roslin

    Abducted By The Alien Commander: A Gay Awakening M/M Romance with Straight To Gay Age Gap, Alien Abduction, and Mpreg (Straight To Gay Alien Doms)

    by Audra Roslin

    • List rank#7
    • Price$0.99
    • Rating3.7
    • Reviews280

    View on Amazon · Full data on KDPTop

  8. A Closed and Common Orbit: A Heartwarming Space Opera of Friendship, Discovery, and Unlike book cover by Becky Chambers

    A Closed and Common Orbit: A Heartwarming Space Opera of Friendship, Discovery, and Unlikely Bonds Across the Galaxy (Wayfarers Book 2)

    by Becky Chambers

    • List rank#8
    • Price$11.99
    • Rating4.6
    • Reviews19,093

    View on Amazon · Full data on KDPTop

  9. Of Monsters and Mainframes book cover by Barbara Truelove

    Of Monsters and Mainframes

    by Barbara Truelove

    • List rank#9
    • Price$3.99
    • Rating4.4
    • Reviews1,715

    View on Amazon · Full data on KDPTop

  10. Blood & Heir: A Dark MM Vampire Omegaverse Romance (Magnus Tower Book 1) book cover by Lucid Dream

    Blood & Heir: A Dark MM Vampire Omegaverse Romance (Magnus Tower Book 1)

    by Lucid Dream

    • List rank#10
    • Price$4.99
    • Rating3.8
    • Reviews170

    View on Amazon · Full data on KDPTop

FAQ

Is Science Fiction a good niche for Amazon KDP?

Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 632 reviews and sells for $11.25.

How many reviews do you need to rank in Science Fiction?

The median best seller has 632 reviews, and 15% of them have fewer than 100.

What do Science Fiction best sellers cost?

The median price is $11.25; half of the best sellers are priced between $4.74 and $16.20.

Can new books break into Science Fiction?

7% of the current best sellers were released in the last 90 days.

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.