KDP categories · Top KDP authors
Science Fiction (Christian, Books): Amazon KDP category data
Amazon Books Best Sellers data for Science Fiction (Christian, Books), updated Nov 2, 2026: median price $13.99, median 74 reviews, average rating 4.7 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $11.99 – $16.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 36% of the parent category Christian (206), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
Top 10 Science Fiction best sellers
-
The Wall: Book 1 in The Wall Trilogy
by Brian Penn
- List rank#1
- Price$4.99
- Rating4.4
- Reviews571
-
The Rise: Book 3 in The Wall Trilogy
by Brian Penn
- List rank#2
- Price$4.99
- Rating4.6
- Reviews248
-
The Fall: Book 2 in The Wall Trilogy
by Brian Penn
- List rank#3
- Price$4.99
- Rating4.6
- Reviews232
-
The Wreck & The Rift, Book 3: Christian YA Survival Adventure
by Rob Baddorf
- List rank#4
- Price$12.99
- Rating4.9
- Reviews35
-
The End: The Complete Dystopian Christian End-Times Saga
by Aaron Ryan
- List rank#5
- Price$23.78
- Rating4.7
- Reviews37
-
A Time to Speak (Volume 2) (Out of Time)
by Nadine Brandes
- List rank#6
- Price$15.53
- Rating4.8
- Reviews131
-
The Girl Who Captured the Sun (Sheena Meyer)
by L.B. Anne
- List rank#7
- Price$10.24
- Rating4.8
- Reviews1,234
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Light of the Ark: Book 1 of Light the Ark Series - A Christian Fiction Thriller
by James Bonk
- List rank#10
- Price$19.99
- Rating4.3
- Reviews347
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 74 reviews and sells for $13.99.
How many reviews do you need to rank in Science Fiction?
The median best seller has 74 reviews, and 59% of them have fewer than 100.
What do Science Fiction best sellers cost?
The median price is $13.99; half of the best sellers are priced between $11.99 and $16.99.
Can new books break into Science Fiction?
5% 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.