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Science Fiction (Westerns, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Science Fiction (Westerns, Kindle eBooks), updated Nov 2, 2026: median price $4.99, median 374 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $5.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- At $4.99 its median price is below 91% of Kindle eBooks categories, so it is a volume game.
- Its review barrier is higher than in 77% of Kindle eBooks categories: the median best seller has 374 reviews, so new books need time to build up.
Top 10 Science Fiction best sellers
-
The Day After Never - Perdition (Book 6)
by Russell Blake
- List rank#1
- Price$4.97
- Rating4.6
- Reviews3,685
-
Dragon Teeth: A Historical Novel About Paleontology
by Michael Crichton
- List rank#2
- Price$11.99
- Rating4.3
- Reviews13,746
-
His First Love: A Hammond Family Farm Novel (Ivory Peaks Romance Book 1)
by Liz Isaacson
- List rank#3
- Price$6.99
- Rating4.5
- Reviews6,651
-
Red Country (World of the First Law Book 3)
- List rank#4
- Price$11.99
- Rating4.6
- Reviews9,523
-
Deadman Walking: A LitRPG Apocalypse Series
by C.B. Titus
- List rank#5
- Price$3.99
- Rating4.7
- Reviews609
-
Yonder in the Stars: A Western Sci-Fi Adventure
by Skyler Ramirez
- List rank#6
- Price$3.99
- Rating4.5
- Reviews406
-
Cold As Hell (Black Badge Book 1)
by Rhett C. Bruno
- List rank#7
- Price$4.99
- Rating4.2
- Reviews2,093
-
Cash and Gravity: A Novel (The Chevy Cole Series)
by Perrin Pring
- List rank#8
- Price$1.99
- Rating4.7
- Reviews46
-
Cast Down World: A sci-fi dystopian western
by James Haddock
- List rank#9
- Price$2.99
- Rating4.6
- Reviews1,823
-
Sun: The Elemental Series
by Pepper Pace
- List rank#10
- Price$4.99
- Rating4.6
- Reviews97
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 374 reviews and sells for $4.99.
How many reviews do you need to rank in Science Fiction?
The median best seller has 374 reviews, and 31% of them have fewer than 100.
What do Science Fiction best sellers cost?
The median price is $4.99; half of the best sellers are priced between $3.99 and $5.99.
Can new books break into Science Fiction?
6% 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.