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Aliens (Teen & Young Adult › Science Fiction, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Aliens (Teen & Young Adult › Science Fiction, Kindle eBooks), updated Nov 2, 2026: median price $4.99, median 718 reviews, average rating 4.5 and a KDPTop opportunity score of 20/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $6.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 12% of the parent category Science Fiction (6,178), one of the easier corners under it.
- 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 84% of Kindle eBooks categories: the median best seller has 718 reviews, so new books need time to build up.
Top 10 Aliens best sellers
-
Now We Are Animals: Enthralling and thought-provoking Dystopian YA (The Colonists: Now We Are Animals Book 1)
by R P Nathan
- List rank#1
- Price$2.99
- Rating4.4
- Reviews1,052
-
Seeds of Chaos Omnibus: A LitRPG Action Adventure Series (Books 1 & 2)
by Azalea Ellis
- List rank#2
- Price$0.99
- Rating4.3
- Reviews163
-
The Complete Genesis Earth Trilogy
by Joe Vasicek
- List rank#3
- Price$0.99
- Rating4.2
- Reviews272
-
Starblade: Armageddon : An Epic Space Opera/Military Sci-fi Adventure (Renegades of the Void Book 5)
by Sean Robins
- List rank#4
- Price$0.99
- Rating4.4
- Reviews34
-
The Spaceship Next Door
by Gene Doucette
- List rank#5
- Price$2.99
- Rating4.3
- Reviews3,116
-
Cress (The Lunar Chronicles Book 3)
- List rank#6
- Price$9.99
- Rating4.7
- Reviews16,471
-
Honor Among Thieves (Honors Book 1)
by Rachel Caine
- List rank#7
- Price$8.31
- Rating4.5
- Reviews1,030
-
Grid Wars: The Complete Series (Books 1-9): Complete Box Sets
by Daniel Young
- List rank#8
- Price$0.99
- Rating4.3
- Reviews587
-
Humanity's Last Stand: The Complete Series (Books 1-9): Complete Box Sets
by Daniel Young
- List rank#9
- Price$0.99
- Rating4.3
- Reviews960
-
Shattered Gravity: A Military Sci-Fi Adventure With Space Opera Elements and a Strong Female Lead (Poisoned Stars Book 1)
by Jina S. Bazzar
- List rank#10
- Price$4.99
- Rating4.4
- Reviews39
FAQ
Is Aliens a good niche for Amazon KDP?
Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 718 reviews and sells for $4.99.
How many reviews do you need to rank in Aliens?
The median best seller has 718 reviews, and 13% of them have fewer than 100.
What do Aliens best sellers cost?
The median price is $4.99; half of the best sellers are priced between $2.99 and $6.99.
Can new books break into Aliens?
4% 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.