Syl: Nucleus: A Monster Evolution LitRPG Adventure!

Syl: Nucleus: A Monster Evolution LitRPG Adventure!

by Lunadea

4.8 (2,127)

4.8 stars from 2,127 reviews. Top 79% of Young Adult books we track.


$2.49KU50% off peak

Last checked: Jun 6, 2026

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Fans of these authors will like this...

  • Andrew Rowe
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Fans of these books will like this...

  • He Who Fights with Monsters
  • Dungeon Crawler Carl
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Perfect for you if...

  • You love underdog protagonists who start at the absolute bottom and have to claw their way up through creativity and determination.
  • You enjoy LitRPG mechanics that feel integral to the story rather than just window dressing, especially progression systems tied to eating and absorption.
  • You want a story with genuine humour mixed in alongside the survival stakes, where the voice feels playful rather than grim.

Maybe not for you if...

  • You prefer human protagonists and find non-humanoid main characters alienating or hard to relate to.
  • You're looking for grimdark tone throughout. This book leans into comedy and charm alongside its challenges.
  • You want minimal system mechanics. This is heavily system-focused, with stats, cores, and levelling woven throughout.

About this book

After their grandfather's death, Syl is offered a choice: reincarnate as a regular person or participate in a daring experiment. Seeking adventure and to honor their grandfather, Syl accepts—only to awaken as a lowly farmed slime. As a farmed slime, Syl's existence is harsh. They are forced to eat and recycle garbage while facing constant danger from humans, including children wielding core-destroying knives. Desperate to escape this fate, Syl flees into the wilderness. There, Syl discovers the pleasure of consuming everything around them. However, local monsters resent the intrusion, and humans, dwarves, and elves hunt monsters for experience. Goblins view Syl as a resource to exploit. Facing overwhelming odds, Syl must determine not only how to survive but how to thrive—unlocking new magic and integrating new slime cores. Throughout their journey in this uncharted territory, Syl remains determined to overcome the challenges ahead and answer the central question: can they make any friends?

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$2.50$4.99Nov '24Jul '25Aug '25Jun '26
$0.99$4.99

Currently on sale at $2.49 — 50% off peak. Price has dropped 2 times over the last 19 months. Goes on sale roughly every 334 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#4,407#448,608#892,809Nov '24Sep '25Jan '26Jun '26

Currently around #27K in the Kindle store — a steady mid-list seller.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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4.0★4.5★5.0★Nov '24Nov '25Dec '25Apr '26RatingReviews

Currently 4.8★ from 2,127 reviews

Gaining approximately 120 new reviews per month. Reader interest is accelerating. Rating has dipped slightly from 5.0 to 4.8.

Sale Prediction

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Free$2.50$4.99Nov '24Jul '25Aug '25Jun '26PredictedJun '26

Actual Predicted

This book is currently discounted at $2.49. It typically returns to around $4.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Lunadea

1 book on Vagrant Press

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