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Last updated: February 2026
Best Keywords for Science Fiction KDP Books
10 high-traffic keywords for science fiction books on Amazon KDP. Use these to boost visibility and sales.
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Top Science Fiction Keywords
| Keyword | Search Volume | Competition |
|---|---|---|
| science fiction books | High | Low |
| space opera kindle | High | Low |
| sci-fi series | High | Low |
| dystopian fiction | High | Medium |
| cyberpunk books | High | Medium |
| military sci-fi | High | Medium |
| alien invasion books | High | Medium |
| time travel fiction | High | Medium |
| post apocalyptic books | High | Medium |
| hard science fiction | High | Medium |
Best Amazon Categories for Science Fiction
- →Kindle eBooks > Science Fiction & Fantasy > Science Fiction > Space Opera
- →Kindle eBooks > Science Fiction & Fantasy > Science Fiction > Military
- →Kindle eBooks > Science Fiction & Fantasy > Science Fiction > Dystopian
- →Books > Science Fiction & Fantasy > Science Fiction
Select 2 categories when publishing on KDP for maximum reach.
Keyword Tips for Science Fiction Books
Title: Include your main keyword naturally in the title.
Subtitle: Add 2-3 trope keywords (e.g., "An Enemies to Lovers Romance").
Backend: Use all 7 keyword slots with long-tail variations.