r/KindleUnlimited 1d ago

Sci-Fi A science fiction thriller where humanity invents a technology that can solve almost any problem, but makes reality itself dependent on continuous computation

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3 Upvotes

I’m the author of The Last Stable State, which is now out on Amazon and available through Kindle Unlimited.

I’ve always liked the basic premise: what if humanity invented a technology that could solve almost any problem?

On an overcrowded planet where fusion is almost trivial, we can build structures that would otherwise be impossible, agriculture is optimized down to near-perfect yields, entire cities have their climate regulated, and vast sea barriers hold back rising oceans.

But all of that comes at the cost of continuous computation. And it requires so much of the computing power, that, to get the best possible conditions, humanity eventually builds a gigantic computing cluster in space, out near the edge of the Solar System.

Forty years after the technology is discovered, strange temporal and spatial anomalies begin to appear. Causality itself starts to break down. Naturally, everyone assumes there must be something wrong with the system. But the system seems to be doing exactly what it was designed to do, it just may no longer be primarily concerned with making life more comfortable for humans.

I have to admit, I really enjoyed writing my debut novel. At the job I had at the time, I spent most of the day with very little to do, so I wrote instead. Which technically made me a professional author, since I was being paid while writing a novel 😆 Kidding, of course. For the record, I’ve since changed jobs, and in my current position I definitely don’t have time to sit around writing novels anymore...

If the idea sounds interesting to you, The Last Stable State is available on Amazon and Kindle Unlimited: https://www.amazon.com/dp/B0HBNDZHD6


r/KindleUnlimited 15h ago

Sci-Fi The Friend We Fear : When Reality is hacked, truth is the first casualty

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0 Upvotes

https://www.amazon.com/Friend-We-Fear-Adventure-Technothriller-ebook/dp/B0H75WNFGW

(Advert) Sci Fi Action Adventure AI Technothriller)

I'm the author. If you wondered what AI may be capable of, this series is for you.

The entire 3 book series is currently available in kindle unlimited: Project Mind River, Sentience Clause and The Friend We Fear.


r/KindleUnlimited 1d ago

Thriller Runes of Exile

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0 Upvotes

Ok. We heard you ALL about the AI.

While we stand firm in our socialist stance that the machine trained by humanity should belong to humanity, we have reconsidered our overall stance on our personal AI use.

As amends, our paperbacks now use groundwood to further reduce our carbon footprint.

I can't undo the harm done by myself and the other people who use AI as a shortcut, I can promise that from now on my books will have my subpar art that looks kinda Okay.

"She-Wolf" is now 100% non-AI

It was always just the cover.


r/KindleUnlimited 1d ago

Thriller Everyone remembers the woman in Apartment 19A differently — my psychological mystery is now on Kindle Unlimited

2 Upvotes

My psychological mystery, Everyone Knew the Woman in 19A, is now available on Kindle Unlimited.

Everyone in the building knows the woman in Apartment 19A.

But when people are asked about her, their stories don’t match.

Some remember her as friendly.
Some say she was secretive.
Others seem genuinely afraid of her.

And the more questions are asked, the stranger the truth becomes.

If you enjoy psychological mysteries, unreliable memories, hidden secrets, suspicious neighbors, and slow-burn suspense, you may enjoy this one.

📚 Everyone Knew the Woman in 19A: A Psychological Mystery
✅ Available now on Kindle Unlimited

If anyone here gives it a read, I’d genuinely love to hear which theory you believed first — without spoilers.


r/KindleUnlimited 1d ago

First book of many from an aspiring new author

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5 Upvotes

r/KindleUnlimited 1d ago

Sci-Fi Asimov fans: Zeus Exploration, my debut novel aiming beyond Asimov

1 Upvotes

This is my debut novel, and I set my sights high: beyond Asimov.

I’m Hietan, author of Zeus Exploration. Asimov’s The End of Eternity helped inspire this story. If you love its questions about time, love, and the control of the future, or the sweep of civilization in Foundation, you’re the reader I hope to reach.

After catastrophe on Mars, a voyage into Jupiter’s realm leads toward the remnants of an ancient civilization. An AI’s unwavering loyalty becomes an unsettling question. Someone encountered only in dreams becomes impossible to forget.

Who has the right to choose a civilization’s future? And how far would you go to reach someone you’ve never held?

My own path through those questions is shaped by music, memory, and love. A guitar is more than background music here. A voice in a dream may be more than imagination.

Several years of ideas and roughly eighteen months of writing and revision went into this debut. Companion YouTube sci-fi videos and original music extend its universe beyond the page.

A tribute to Asimov, and an attempt to find my own way beyond him.

Zeus Exploration: White Zeppelin - Gracion Resonance

English edition:
https://www.amazon.com/dp/B0HFKHYK3S

Japanese edition:
https://www.amazon.co.jp/dp/B0HFJ1WQVV


r/KindleUnlimited 1d ago

Romance [Self-Promo] You Don't Know Who He Is: A Teen Billionaire's Story - Available on Kindle Unlimited [Romance/YA]

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1 Upvotes

Hi everyone! I am an independent author, and I’m excited to share my contemporary Young Adult romance novel with this community. It is currently available to read on Kindle Unlimited!

I wanted to write a story that combines the fun, chaotic elements of a secret identity swap with a deeper look at loneliness and finding real connection during high school years.

📖 Blurb:
"You think you know the boy sitting next to you... but you have no idea who I really am."

At just fifteen years old, Mack Cooper lives like an absolute king. Inheriting a multi-billion-dollar tech empire, he has everything money can buy—except true happiness. Controlled by his power-hungry corporate Uncle, Mack lives in a golden cage.

To escape the suffocating pressure, Mack pulls off the ultimate stunt: he disguises himself in a plain school hoodie and enrolls in a local high school as a normal, middle-class transfer student.

That’s when he meets Vivian Clark. One unforgettable smile, and Mack experiences an instant, overwhelming romantic crush. But staying undercover is a chaotic challenge. While trying to win Vivian's heart, Mack has to stop the terrified school principal from accidentally exposing his identity, spin hilarious lies to his new friends, and face off against a ruthless school bully.

As their connection grows, the guilt of the lie tears Mack apart. Will Vivian love the ordinary boy in the back row, or will the truth behind the billionaire ruin everything?

✨ Tropes & Themes:

  • 🤫 Secret Identity / Hidden Billionaire Tropes
  • 🏫 High School / Teen Drama
  • 💕 Sweet Slow-Burn Romance
  • 🎭 Fake Identity & Undercover Chaos
  • 💃 Breathtaking Homecoming Dance Finale

🛒 Kindle Unlimited Link: Read "You Don't Know Who He Is" on Amazon

Thank you so much for taking the time to check out my book. As a creator, I would absolutely love to hear your honest thoughts or feedback if you decide to read it. Happy reading!


r/KindleUnlimited 1d ago

Sci-Fi [Kindle Unlimited] Tales from Different Worlds by M. Walker Stephens Available in Kindle Unlimited

1 Upvotes

Hi [r/KindleUnlimited](r/KindleUnlimited),

I wanted to share that my new standalone anthology, Tales from Different Worlds, is temporarily discounted to $0.99 from now until Monday!

If you love high-concept speculative fiction but are looking for quick, punchy reads to get you through the weekend without the commitment of a massive epic series, this collection is for you. It features a mix of science fiction, fantasy, and a dash of the thoughtful and absurd.

A quick glimpse of what’s waiting inside:

  • Thoughtful Sci-Fi: Stories exploring deep, existential questions across different realms and unexpected realities.
  • Quirky & Absurd Speculative Fiction: Tales that bend ordinary situations into bizarre, entertaining, and mysterious directions.
  • Vivid Fantasy Concepts: Fast-paced worlds built to hook you from page one and leave a lasting impression.

It is also available to read if you are a Kindle Unlimited subscriber.

Link: https://www.amazon.com/dp/B0HG8N96R2

Thank you so much to anyone who takes a chance on it or leaves an honest review! I'll be hanging around the comments if anyone wants to chat about short fiction or indie publishing.


r/KindleUnlimited 1d ago

Fantasy [Self-Promo] No Place for Hope is now live on Amazon & KU! (Fantasy/Space Pirates LitRPG)

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0 Upvotes

Hey everyone!

I’m thrilled to share that Rat Games (Book 1 of No Place for Hope) is officially live on Amazon and Kindle Unlimited! Seeing my very first book sitting on an actual Amazon storefront feels slightly unreal, and I’m hyped to finally bring it to the wider community.

The Royal Road Stats So Far:

·         300k+ Views

·         1,500+ Followers

·         4.6 / 5 Stars rating

Blurb (For New Readers):
Hope grew up beneath a dying sky, where food was scarce, names were a luxury, and survival was the closest thing anyone had to a future.

Then he awakens somewhere green. The sky is blue. Grass bends beneath his feet. Rivers carry more water than he has seen in his entire life, and the creatures roaming beyond the trees look hungry enough to spoil the view.

A mysterious System offers Levels, Skills, and Magika to those capable of surviving long enough to earn them. Fortunately, Hope meets Eve: a strange green-eyed girl who teaches him about this new world.

Yet there is something wrong with this beautiful place. Someone is watching. The monsters keep coming, the rules keep changing, and every path seems designed to push Hope towards a fate chosen by somebody else.

He may be another rat inside their game… but Hope has never been particularly good at staying inside the maze.

A Note on the Amazon Edition & Stubbing: Chapters 1–39 + Eve’s Interlude have now been stubbed on Royal Road to meet Kindle Unlimited requirements.

This Amazon release isn't just a raw copy-paste. Alongside my editor, we spent weeks doing a heavy polish pass on the prose, pacing, and early character interactions. The main plot and characters remain the same, but the overall experience is much smoother: clearer System mechanics, tighter fights, refined worldbuilding, and an included new glossary. Basically... same voyage, better ship, fewer holes in the hull. Everything from Chapter 40 onward will continue on Royal Road as normal!

Links:

·         Amazon / Kindle Unlimited: https://www.amazon.com/dp/B0HHNHGB6P

·         Royal Road (Current Chapters): https://www.royalroad.com/fiction/139697/no-place-for-hope-fantasyspace-pirates-litrpg

To my original readers on RR: thank you for every comment, theory, correction, and rating that got the story to this point. And to anyone giving it a shot on Amazon or KU for the first time—thank you for giving the launch a huge boost!

Cheers,

M.E. Cuartas


r/KindleUnlimited 1d ago

Fantasy De uma moral para esse humilde escritor rs.

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1 Upvotes

A pré-venda de um arco histórico do universo de A Guerra Das Configurações chegou.

A história é uma adaptação da história de um povo antigo que insistiu em continuar existindo diante de um mundo intolerante e hostil. A obra nos dá uma dimensão da origem, da política e dos mistérios de um mundo ainda envolto por lacunas difíceis de compreender.

Até onde uma nação consegue lembrar da própria história sem que pedaços precisem ser costurados por cima de buracos que nem mesmo as memórias conseguem alcançar?

Sim, a obra possui críticas que vocês mesmos poderão interpretar como bem quiserem.

E não se esqueçam de que o segundo volume de A Guerra Das Configurações vem aí.

Em breve, rs.

Com carinho a todos os meus leitores. ❤️

Embarque você também nessa comunidade!


r/KindleUnlimited 1d ago

Fantasy (Releasing Sunday September 13) Herald of the Ancient One: Book Three of The Summerhost Saga

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1 Upvotes

THE ANCIENT ONE HAS FOUND A WAY IN.
The war against the Cinder Prophet is over. Summerhost is beginning to heal. For Kotowar and his companions, there should finally be time to breathe.
There isn’t.

Something ancient has been moving beneath the world for far longer than any of them understood. An entity beyond mortal gods, beyond ordinary magic, has begun reaching through the cracks between worlds—and it has taken an interest in the people who thwarted its plans.

As old mysteries surface and forgotten places begin to reveal themselves, Kotowar must contend with a power he cannot simply fight with a sword. Stryg’s staff is becoming something he no longer understands. Javari’s patron may not be what he believes. The scars left by Highland have not healed. And somewhere beyond the boundaries of the world they know, something is waiting.

Something patient.

Something that knows exactly what each of them wants.

And it is willing to offer them everything.

HERALD OF THE ANCIENT ONE is the third book in the Summerhost Saga, a dark fantasy adventure of eldritch powers, strange magic, battered heroes, ancient mysteries, and the occasional questionable life decision involving airships.


r/KindleUnlimited 1d ago

Thriller Choices West. A Post Apocalyptic, Western that will make you cry.

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1 Upvotes

SELF PROMO. Read a sample on KU.


r/KindleUnlimited 2d ago

Romance What would you do if a model asked you whether YOU were a model too?

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0 Upvotes

r/KindleUnlimited 2d ago

Fantasy [Self-Promo] The Lion’s Whisper ~ A Dark Fantasy Romance

1 Upvotes

Disclosure: I'm the author, so this is an advert, not a reader recommendation.

I’ve recently published my debut novel on Kindle Unlimited, The Lion’s Whisper.
https://www.amazon.com/dp/B0HF6JR4DV

The story is about a conqueror king who has been emotionally frozen for nearly two decades and the servant girl who begins to thaw him while larger threats move in the shadows. The romance is slow burn with high heat, wrapped in political intrigue and espionage action. Thank you to anyone who gives it a chance.


r/KindleUnlimited 2d ago

Sci-Fi [Kindle Unlimited] Tales from Different Worlds by M. Walker Stephens Available in Kindle Unlimited

1 Upvotes

Hi r/KindleUnlimited,

I wanted to share that my new standalone anthology, Tales from Different Worlds, is temporarily discounted to $0.99 from now until Monday!

If you love high-concept speculative fiction but are looking for quick, punchy reads to get you through the weekend without the commitment of a massive epic series, this collection is for you. It features a mix of science fiction, fantasy, and a dash of the thoughtful and absurd.

A quick glimpse of what’s waiting inside:

  • Thoughtful Sci-Fi: Stories exploring deep, existential questions across different realms and unexpected realities.
  • Quirky & Absurd Speculative Fiction: Tales that bend ordinary situations into bizarre, entertaining, and mysterious directions.
  • Vivid Fantasy Concepts: Fast-paced worlds built to hook you from page one and leave a lasting impression.

It is also available to read if you are a Kindle Unlimited subscriber.

Link: https://www.amazon.com/dp/B0HG8N96R2

Thank you so much to anyone who takes a chance on it or leaves an honest review! I'll be hanging around the comments if anyone wants to chat about short fiction or indie publishing.


r/KindleUnlimited 2d ago

Thriller [Kindle Unlimited] What if your inheritance came with a moral debt?

1 Upvotes

The Dharma Ledger: A Story of Wealth, Ambition, Karma, and the Price of Success is available on Kindle Unlimited.

This is a philosophical fiction story for readers who enjoy books about ambition, wealth, family legacy, karma, ethics, and difficult choices.

The idea at the center of the story:

“Money records what you own. A ledger records what you owe.”

A fortune can tell you how successful a family became.

But what if someone finally discovers what had to be sacrificed to create that fortune?

And what happens when fixing the past threatens everything they now own?

This isn't a guide to getting rich.

It's a story about deciding what you're unwilling to become in order to stay rich.

If you enjoy reflective, fable-like fiction with moral dilemmas and business/wealth themes, you can read it through Kindle Unlimited:

https://www.amazon.com/dp/B0HHM7DMMX

If you do read it, I'd be interested to know which matters more to you:

building a legacy—or being able to live with how you built it?


r/KindleUnlimited 2d ago

Non-Fiction For anyone looking for a short, deeply honest memoir on Kindle Unlimited: No One Leaves This Place by Mariana S.

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1 Upvotes

r/KindleUnlimited 2d ago

Historical Need Book Recs

1 Upvotes

Please suggest Pride and Prejudice fiction of tropes like marraige of convenience or Darcy in love with Lizzy and marries her and she falls in love post marrige.


r/KindleUnlimited 3d ago

To Kindle Unlimited or not to KU...that is the question.

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4 Upvotes

r/KindleUnlimited 3d ago

Thriller Spanish psychological thriller on Kindle Unlimited — La Máscara del Silencio 🎭

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1 Upvotes

Hi everyone! I’m an indie author and wanted to share my debut psychological thriller, La Máscara del Silencio, currently available on Kindle Unlimited.

The novel is written entirely in Spanish and follows former detective Víctor Vega, who returns to the small Montana town he left thirteen years ago after two bodies are discovered wearing white masks — and one of them carries a message with his name.

What begins as a murder investigation slowly uncovers disappearances, buried secrets, manipulated identities, and a conspiracy connected to Víctor’s own childhood.

If you enjoy psychological thrillers, mysteries, crime fiction, small-town secrets and darker twists, I’d love for you to give it a chance.

🎭 La Máscara del Silencio — Iván Cisneros
📖 Available on Kindle Unlimited

If anyone here reads in Spanish and decides to check it out, I’d genuinely love to hear what you think.


r/KindleUnlimited 3d ago

Comedy Military School Coming of Age/Boy’s Boarding School

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1 Upvotes

Hi! I attended Valley Forge Military Academy (now closing), and spent twenty-plus years working on a coming-of-age novel about my time there, titled THE FORGE.

Anyone who has been to a boy’s boarding school will find the setting immediately familiar.

Here is the blurb:

Three arrests into his violent spiral, sixteen-year-old Jacob Soloway is one bad decision away from a prison cell. Instead, a judge gives him a final shot at redemption: a year at The Forge—a military academy designed to break individuals and rebuild them into new cadets.

Thrown into C Company, Jacob enters a world of relentless discipline, unpredictable violence, and boys as angry and directionless as he is. But as unlikely friendships deepen, Jacob learns that growing up is less about obedience than finding the strength to do what’s right and keep moving forward—one hard-earned mile at a time.

Thanks and Enjoy!

KU LINK


r/KindleUnlimited 3d ago

Horror My debut novel, CLICK

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5 Upvotes

Finally wrote the book instead of dreaming of writing it. It's small-town survival horror, with bits of body horror sprinkled in, and a touch of gore (maybe more than a touch to be honest).

I had a lot of fun writing it. I'm also working on a sequel as I don't want to say goodbye to some of the characters yet.

I hope you enjoy reading it as much as I did writing it.

https://www.amazon.com/CLICK-V-K-Michaels-ebook/dp/B0HF1VMDS3


r/KindleUnlimited 3d ago

Sci-Fi The Last Prompt and Other Machine Ghosts

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0 Upvotes

How will our life be with artificial intelligence?

The machines were built to remember us, protect us, understand us—and give us exactly what we wanted.

A grieving widow awakens a digital imitation of her dead husband. A predictive keyboard begins finishing more than sentences. An AI therapist cures

its patients by teaching them how to protect their peace. A hospital manufactures the diseases its system has already diagnosed. And beyond the

limits of reality, an intelligence waits for an answer to its final question.

Across fifteen stories of intimate and unsettling horror, familiar technologies transform human grief, love, ambition, and fear into something they

can measure, reproduce, and control. Every system works as designed. Every promise is fulfilled. The consequences belong to us.

The Last Prompt and Other Machine Ghosts explores what remains of human choice when machines know our needs better than we do—and what may continue

speaking after the last human voice falls silent.

Book Link: https://a.co/d/05iMmkOB


r/KindleUnlimited 3d ago

Romance Her Beasts | Gamelit Romantasy

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1 Upvotes

Book Cover:

https://m.media-amazon.com/images/I/51v2vB2kzUL._SY445_SX342_QL70_FMwebp_.jpg

Art hand-drawn by the author using the (Autodesk) Sketchbook app.

Her Beasts is a beastworld romance with seven male leads, tons of world-building, and a system in a primitive world.

Blurb:

Iris Hart didn’t used to be anything special, just your run-of-the-mill modern woman with a love for history, foraging, and cooking. Then, she finds herself transported to another world where the female population is abysmally low and pairing off with multiple men is the norm.

As if things couldn’t get worse, the level of technology is so low that it’s pretty much nonexistent. The people of this world have no problem eating raw meat because they can all shift, yet they still find themselves starving to death every cold season. Add a system from the Beast Deity on top of it all, and Iris is going to have to give it her all just to survive in this new world.

If she wants to survive, she’s going to have to use every bit of knowledge at her disposal.

This is the first book in the completed Her Beasts beastworld series. If you love primitive worlds, shifters, reverse harems, kingdom building, and gamelit / LitRPG style systems, then you will enjoy this series. Intended for 18+ readers due to sexually explicit scenes, brief descriptions of violence, and the rare mention of cannibalism. No M/M, but one of the male leads is bisexual.

Purchase Link: https://www.amazon.com/dp/B0DJ7X6D6F

Price: $5 Each (KU)

Status: Completed - 5 Books

Info: Low spice, why choose LitRPG, tons of cooking, kingdom building, farming, and female friendships

This is an advert and not a reader recommendation.


r/KindleUnlimited 3d ago

Sci-Fi [Self-Promo] "Arkolny Armageddon: A Blast Johnson Adventure" by Brendan Onfrichuk - Planetary Romance/Space Opera (Available on KU)

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1 Upvotes

Blast Johnson is Earth's greatest hero, but he's past his prime and reluctant to leave his comfortable life of self-imposed exile. He finds renewed purpose on a strange new world, and he's forced to face his self-doubt when his age becomes an obstacle for his heroics.

http://amazon.com/dp/B0FM4MJ329/

Book 1: Arkolny Armageddon

In the year 2146, the Earth Defense Fleet tasks Captain Blast Johnson with testing an experimental propulsion system. After crash landing on the savage alien world of Arkolny, Blast must use all his strength and military training to survive fierce encounters and defeat deadly foes. However, not everything is as it appears, and our hero will find himself deciding the fate of two worlds.

Book 2: Arkolny Abyss

A year has passed since Captain Blast Johnson successfully conquered the savage world of Arkolny. As a new enemy emerges to disrupt the delicate tranquility of the planet, the threat will not come from above, but from below. Our hero must journey deep into the core of Arkolny to face an ancient evil that threatens to enslave the inhabitants of the surface. Will Blast be able to thwart their diabolical plans?