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Space Opera (Science Fiction & Fantasy › Science Fiction, Books): Amazon KDP category data
Amazon Books Best Sellers data for Space Opera (Science Fiction & Fantasy › Science Fiction, Books), updated Nov 3, 2026: median price $19.95, median 5,580 reviews, average rating 4.5 and a KDPTop opportunity score of 32/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $25.53 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 30% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its review barrier is higher than in 97% of Books categories: the median best seller has 5,580 reviews, so new books need time to build up.
- 30% of its best sellers came out in the last 90 days, more than in 97% of Books categories: readers here keep buying new titles.
- Its median reviews are 18% of the parent category Science Fiction (30,843), one of the easier corners under it.
Top 10 Space Opera best sellers
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Dune: Book One in the Dune Chronicles
- List rank#2
- Price$29.49
- Rating4.7
- Reviews104,393
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![Light Bringer (1 of 3) [Dramatized Adaptation]: Red Rising 6 book cover by Pierce Brown](https://images-na.ssl-images-amazon.com/images/I/814U2UdqkZL._AC_UL300_SR300,200_.jpg)
Light Bringer (1 of 3) [Dramatized Adaptation]: Red Rising 6
by Pierce Brown
- List rank#3
- Price$18.79
- Reviews-
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For We Are Many: Bobiverse, Book 2
- List rank#5
- Price$16.36
- Rating4.6
- Reviews21,518
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Dune Messiah: Book Two in the Dune Chronicles
- List rank#7
- Price$16.95
- Rating4.4
- Reviews37,176
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Last Ride: Expeditionary Force, Book 20
- List rank#9
- Price$29.49
- Reviews-
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Children of Time: Children of Time, Book 1
- List rank#10
- Price$21.99
- Rating4.5
- Reviews51,769
Same niche in Kindle eBooks: Space Opera
FAQ
Is Space Opera a good niche for Amazon KDP?
Its KDPTop opportunity score is 32/100, which makes it highly competitive. The median best seller has 5,580 reviews and sells for $19.95.
How many reviews do you need to rank in Space Opera?
The median best seller has 5,580 reviews, and 16% of them have fewer than 100.
What do Space Opera best sellers cost?
The median price is $19.95; half of the best sellers are priced between $4.99 and $25.53.
Can new books break into Space Opera?
30% 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.