KDP categories · Top KDP authors
Science Fiction (Science Fiction & Fantasy, Books): Amazon KDP category data
Amazon Books Best Sellers data for Science Fiction (Science Fiction & Fantasy, Books), updated Nov 2, 2026: median price $16.95, median 30,843 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $10.40 – $22.17 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 16% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its review barrier is higher than in 99% of Books categories: the median best seller has 30,843 reviews, so new books need time to build up.
- 16% of its best sellers came out in the last 90 days, more than in 83% of Books categories: readers here keep buying new titles.
Top 10 Science Fiction best sellers
-
The Eye of the Bedlam Bride: Dungeon Crawler Carl, Book 6
- List rank#1
- Price$27.69
- Rating4.8
- Reviews67,936
-
A Parade of Horribles: Dungeon Crawler Carl, Book 8
- List rank#2
- Price$27.63
- Rating4.8
- Reviews41,099
-
House of Earth and Blood: Crescent City, Book 1
- List rank#3
- Price$27.48
- Rating4.7
- Reviews183,951
-
-
House of Sky and Breath: Crescent City, Book 2
- List rank#5
- Price$25.93
- Rating4.7
- Reviews148,385
-
-
Golden Son: Book II of the Red Rising Trilogy
by Pierce Brown
- List rank#7
- Price$23.49
- Rating4.7
- Reviews81,774
-
Dungeon Crawler Carl
- List rank#8
- Price$12.48
- Rating4.6
- Reviews125,754
-
Morning Star: Book III of the Red Rising Trilogy
by Pierce Brown
- List rank#9
- Price$19.95
- Rating4.7
- Reviews62,290
-
Subcategories
- Androids, Robots & Artificial Intelligences39
- Anthologies36
- Post-Apocalyptic34
- Space Opera32
- Military31
- Galactic Empire30
- Crime & Mystery29
- History & Criticism29
- Exploration29
- Humorous28
- Hard Science Fiction27
- Dystopian26
- Cyberpunk26
- LGBTQ+25
- Alien Invasion25
- Adventure24
- Colonization24
- Genetic Engineering24
- Steampunk23
- First Contact21
- TV, Movie & Video Game Adaptations21
- Short Stories14
Same niche in Kindle eBooks: Science Fiction
FAQ
Is Science Fiction a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 30,843 reviews and sells for $16.95.
How many reviews do you need to rank in Science Fiction?
The median best seller has 30,843 reviews, and 14% of them have fewer than 100.
What do Science Fiction best sellers cost?
The median price is $16.95; half of the best sellers are priced between $10.40 and $22.17.
Can new books break into Science Fiction?
16% 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.