KDP categories · Top KDP authors
Karis Chan: Amazon KDP author data
As of Nov 6, 2026, Karis Chan has 21 books on Amazon, 13 of them on a best-seller list in the last 30 days (best rank #52), mostly in Genetic Engineering, Technothrillers, Sea Adventures.
| Median price | $7.99 |
|---|---|
| Price range (middle 50%) | $7.99 – $7.99 |
| Median reviews | 2 |
| Total reviews | 55 |
| New listings (30 days, incl. new editions) | 11 |
| Breakout books (30 days) | 0 |
What stands out
- 62% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $7.99, 60% above the median of their main category, Genetic Engineering.
- 11 new listings in the last 30 days (new editions included).
Karis Chan's best-ranked books
-
Memoirs of a Drop Marine Book 4: A Special Operations Squad Helmet Cam Novel (The Wraith Memoirs)
by Karis Chan
- Price$7.99
- Reviews-
-
System Zero Book 1: A Mobile Suit Military LitRPG Romance (Cathedral Mech)
by Karis Chan
- Price$15.06
- Rating3.0
- Reviews1
-
Maid vs T-Rex Book 1: A Jurassic Survival Thriller (Lost Containment Chronicles)
by Karis Chan
- Price$0
- Rating3.4
- Reviews20
- Published2026-02
-
The Final Depth Book 1: A Deep-Sea Shark Thriller (The Meridian Sanctuary)
by Karis Chan
- Price$7.99
- Rating2.5
- Reviews9
-
Marines vs Aliens Book 1: Theme Park Assault (The Anaheim Protocol)
by Karis Chan
- Price$0
- Rating3.3
- Reviews8
-
Grave of the Northern Fleet Book 3: A Submarine Thriller (The Last Typhoon Completed Series)
by Karis Chan
- Price$16
- Rating4.4
- Reviews3
- Published2026-02
-
The Last Relay Book 4 (The Stellar Vigil)
by Karis Chan
- Price$0
- Rating4.2
- Reviews3
- Published2026-02
-
Pluto Station Book 4: An Alien First Contact Thriller (Edgefall)
by Karis Chan
- Price$0
- Rating2.1
- Reviews3
- Published2026-03
-
Ginger Cat and Dragon Book 1 (Ginger Cat & the Dragon Pact Saga)
by Karis Chan
- Price$0
- Rating5.0
- Reviews2
- Published2026-02
-
The Astronaut Maid Book 1: A Cold War Espionage Thriller
by Karis Chan
- Price$7.99
- Rating4.0
- Reviews2
Main categories
FAQ
How many books does Karis Chan have on Amazon?
KDPTop tracks 21 of their books; 13 made an Amazon list in the last 30 days.
Which categories does Karis Chan publish in?
Their books chart most often in Genetic Engineering, Technothrillers, Sea Adventures.
How does Karis Chan price their books?
The median price is $7.99; half of the books cost $7.99–$7.99.
Has Karis Chan released new books recently?
11 new books in the last 30 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.