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Jasper C. Lock: Amazon KDP author data
Jasper C. Lock has 27 books on Amazon, 19 of them on a best-seller list in the last 30 days (best rank #1), mostly in Call of Cthulhu, Pathfinder, Dungeons & Dragons.
27Books on Amazon
19Listed in 30 days
4.8Average rating
| Median price | $9.99 |
|---|---|
| Price range (middle 50%) | $8.14 – $11.42 |
| Median reviews | 3 |
| Total reviews | 81 |
| New books (30 days) | 12 |
| Breakout books (30 days) | 9 |
What stands out
- 70% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $9.99, 50% below the median of their main category, Call of Cthulhu.
- 12 new books in the last 30 days, 9 of them broke into a Best Sellers list.
Jasper C. Lock's best-ranked books
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Omens, Echoes, and Unquiet Places: Random Tables for Horror Mysteries, Haunted Locations, Escalating Dread, and Terrible Consequences (Tabletop Toolkit)
by Jasper C. Lock
- Price$16.99
- Reviews-
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Tabletop Toolkit: The Encyclopedia of Tabletop Terror: A Complete Guide to Horror Roleplaying
by Jasper C. Lock
- Price$5.99
- Rating5.0
- Reviews1
-
The Social Game Master: A System-Neutral Guide to Social Encounters, Negotiations, Interrogations and Conversations That Matter (Tabletop Toolkit)
by Jasper C. Lock
- Price$2.99
- Reviews-
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Tabletop Toolkit: NPCs, Secrets, and Sudden Trouble: Random Tables for Game Masters Who Want Every NPC to Matter
by Jasper C. Lock
- Price$9.99
- Rating5.0
- Reviews1
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Ruins, Relics, and Dark Places: Random Tables for Game Masters Who Want Exploration to Tell a Story (Tabletop Toolkit)
by Jasper C. Lock
- Price$11.99
- Reviews-
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Tabletop Toolkit: Towns, Rumours, and Trouble: Random Tables for Game Masters Who Want Settlements That Feel Alive
by Jasper C. Lock
- Price$8.86
- Rating5.0
- Reviews5
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The Universal Science Fiction Game Master’s Guide: Building System-Neutral Campaigns with Living Worlds, Starships, NPCs, and Factions (Tabletop Toolkit)
by Jasper C. Lock
- Price$11.99
- Rating4.0
- Reviews1
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Starships, Signals, and System Failures: Starships, Signals, and System Failures (Tabletop Toolkit)
by Jasper C. Lock
- Price$9.99
- Reviews-
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Tabletop Toolkit: The Game Master's Guide: Build and Run Memorable Adventures for Any Tabletop RPG
by Jasper C. Lock
- Price$10.99
- Rating4.9
- Reviews12
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Tabletop Toolkit: Roads, Wilds, and Waystations: Random Tables for Game Masters Who Want Travel to Feel Dangerous, Memorable, and Alive
by Jasper C. Lock
- Price$9.99
- Rating5.0
- Reviews3
Main categories
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.