Past Kindle Book Deals but Still Must Read Books!
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959 past books matching Sci-Fi

Killing Gravity
Corey J. White
Sci-Fi
With 4.5 stars on Amazon, this gripping sci-fi debut is perfect for fans of The Expanse and Revenger.

Killing Gravity
Corey J. White
Sci-Fi
Our take
She can kill you with her mind. But that won’t be enough. In Killing Gravity, Corey J. White delivers a breakneck space thriller starring Mars Xi, a genetically enhanced voidwitch on the run from the people who made her. With 4.5 stars on Amazon, this gripping sci-fi debut is perfect for fans of The Expanse and Revenger.
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About the book
Mariam “Mars” Xi is a voidwitch—engineered by MEPHISTO to be a psychic weapon capable of tearing ships apart with her mind. She escaped. Now they want her back.
Hunted across the galaxy and haunted by a past soaked in blood, Mars drifts between outlaws, fringe stations, and half-broken ships, clinging to survival alongside her genetically engineered space-pet, Seven. When a bounty hunter nearly ends it all, she’s forced to rely on a crew of strangers and dive into the shadowy truth of who betrayed her.
Killing Gravity is a blistering sci-fi debut from Corey J. White—perfect for fans of The Expanse and Gideon the Ninth. Brutal, propulsive, and packed with raw emotion, it’s a story of power, vengeance, and the cost of freedom.
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Tek Money
William Shatner
Sci-Fi
Private investigator Jake Cardigan must race against time to save the life of his son and get the deadliest weapons in the world out of the hands of…

Tek Money
William Shatner
Sci-Fi
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About the book
Private investigator Jake Cardigan must race against time to save the life of his son and get the deadliest weapons in the world out of the hands of the most dangerous criminals in the universe
In the seventh book of the TekWar Series by bestselling author and Star Trek icon William Shatner, terror hits too close to home for protagonist Jake Cardigan, private eye of the future.
Homicide is as common in the twenty-second century as it was one hundred years earlier, thanks in large part to the ruthless TekLords, criminals who traffic in the popular electronic fantasy-enabling drug Tek. When a Tek user who was once a family friend is brutally murdered just outside the door of Dan Cardigan, son of private eye Jake Cardigan, the young man is shocked to discover that the police consider him a prime suspect. Worse still, Dan has become a disposable pawn in a very deadly game. With his son’s life on the line, Jake and his loyal partner, Sid Gomez, must somehow get to the bottom of the disappearance of terrifying new weaponry from a California research facility and a related rash of murders—a mission that will put them at odds not only with a formidable criminal conspiracy, but with the police and the most lethal factions of the US government itself.
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Artificial Wisdom
Thomas R. Weaver
Mystery · Sci-Fi
In 2050, journalist Marcus Tully is haunted by a heatwave that claimed his wife—and 400 million lives.

Artificial Wisdom
Thomas R. Weaver
Mystery · Sci-Fi · Thriller
Our take
In 2050, journalist Marcus Tully is haunted by a heatwave that claimed his wife—and 400 million lives. When a whistleblower reveals secrets linking the disaster to a global conspiracy, Tully is thrust into a deadly investigation. Amid a power struggle between a former president and the first AI politician, Tully races to expose the truth: is the climate humanity’s enemy, or is humanity its own destruction?
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About the book
It's 2050, a decade after a heatwave that killed four hundred million across the Persian Gulf, including journalist Marcus Tully's wife. Now he must uncover the truth: was the disaster natural? Or is the weather now a weapon of genocide?
A whistleblower pulls Tully into a murder investigation at the centre of an election battle for a global dictator, with a mandate to prevent a climate apocalypse. A former US President campaigns against the first AI politician of the position, but someone is trying to sway the outcome.
As the murder of a crucial witness derails the investigation, Tully must find the truth, convince the world to face it and make hard choices about the future of the species. But will humanity ultimately choose salvation over freedom, whatever the cost?
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The Space Between Worlds
Micaiah Johnson
Mystery · Sci-Fi
Multiverse travel is a reality—but only for those whose counterparts are dead.

The Space Between Worlds
Micaiah Johnson
Mystery · Sci-Fi
Our take
Multiverse travel is a reality—but only for those whose counterparts are dead. Cara’s knack for dying across 372 worlds makes her the perfect traveler, plucked from the wastelands to serve the elite of Wiley City. But when a doppelgänger dies mysteriously, Cara unravels a secret threatening every universe. Her survival could mean the difference between saving worlds—or destroying them all.
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About the book
Multiverse travel has one rule: you can’t visit a world where your counterpart is alive. For Cara, that’s rarely a problem—on 372 worlds, her parallel selves are dead, victims of disease, violence, or vengeance.
On this Earth, Cara has defied the odds. Plucked from the wastelands, she’s become a rare asset for Wiley City’s elite, traveling the multiverse to collect data. It’s a life of uneasy balance—secure yet fragile, tethered to both the city’s privileges and the harsh world she left behind.
When one of her few remaining doppelgängers dies under suspicious circumstances, Cara uncovers a secret that shatters her tenuous stability. Her discovery ties her to a dangerous conspiracy, where survival means more than saving herself—it could determine the fate of every universe.
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Mickey 7
Edward Ashton
Sci-Fi
Dying isn’t any fun…but at least it’s a living.

Mickey 7
Edward Ashton
Sci-Fi
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About the book
Dying isn’t any fun…but at least it’s a living.
Mickey Barnes is an Expendable: a disposable employee on a human expedition sent to colonize the ice world Niflheim. Whenever there’s a mission that’s too dangerous—even suicidal—the crew turns to Mickey. After one iteration dies, a new body is regenerated with most of his memories intact. After six deaths, Mickey7 understands the terms of his deal…and why it was the only colonial position unfilled when he took it.
On a routine scouting mission, Mickey7 goes missing and is presumed dead. By the time he returns to the colony base, surprisingly helped back by native life, his fate has been sealed. There’s a new clone, Mickey8, reporting for Expendable duties, and there can only be one Expendable. If Mickey7 reports his survival to Command, one of them is going into the recycler. If he doesn’t and they’re caught, they both are.
Meanwhile, life on Niflheim is getting worse. The atmosphere is unsuitable for humans, food is in short supply, and terraforming is going poorly. The native species are growing curious about their new neighbors, and that curiosity has Commander Marshall very afraid. Ultimately, the survival of both lifeforms will come down to Mickey7.
That is, if he can just keep from dying for good.
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Empire of Silence
Christopher Ruocchio
Sci-Fi · Space Opera
Empire of Silence begins with a man remembered as both savior and destroyer, then strips the legend back to the choices that made him infamous.

Empire of Silence
Christopher Ruocchio
Sci-Fi · Space Opera
Our take
Empire of Silence begins with a man remembered as both savior and destroyer, then strips the legend back to the choices that made him infamous. Hadrian Marlowe flees a brutal inheritance only to be stranded among gladiator pits, alien war, and imperial politics. This is sweeping space opera with epic fantasy bones, built around exile, power, memory, and the cost of becoming history.
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About the book
"[E]pic science fiction at its most genuinely epic." —James S.A. Corey, New York Times-bestselling author of The Expanse novels
"This wow book is a must for fans of Pierce Brown and Patrick Rothfuss." —Library Journal (starred)
Hadrian Marlowe, a man revered as a hero and despised as a murderer, chronicles his tale in the galaxy-spanning debut of the Sun Eater series, merging the best of space opera and epic fantasy.
It was not his war.
The galaxy remembers him as a hero: the man who burned every last alien Cielcin from the sky. They remember him as a monster: the devil who destroyed a sun, casually annihilating four billion human lives—even the Emperor himself—against Imperial orders.
But Hadrian was not a hero. He was not a monster. He was not even a soldier.
On the wrong planet, at the right time, for the best reasons, Hadrian Marlowe starts down a path that can only end in fire. He flees his father and a future as a torturer only to be left stranded on a strange, backwater world.
Forced to fight as a gladiator and navigate the intrigues of a foreign planetary court, Hadrian must fight a war he did not start, for an Empire he does not love, against an enemy he will never understand.
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Do You Dream of Terra-Two?
Temi Oh
Sci-Fi · Hard Sci-Fi
Ten astronauts set out on a decades-long mission to colonize a new world, including six teenagers raised for the journey.

Do You Dream of Terra-Two?
Temi Oh
Sci-Fi · Hard Sci-Fi
Our take
Ten astronauts set out on a decades-long mission to colonize a new world, including six teenagers raised for the journey. As isolation and pressure mount, the dream of Terra-Two begins to fracture. This award-winning science fiction novel blends psychological tension with realism, earning 4.2 stars on Amazon and widespread critical acclaim.
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About the book
An NPR favorite book of 2019
Winner of the ALA/YALSA Alex Award
When an Earth-like planet is discovered, a team of six teens, along with three veteran astronauts, embark on a twenty-year trip to set up a planet for human colonization—but find that space is more deadly than they ever could have imagined.
Have you ever hoped you could leave everything behind?
Have you ever dreamt of a better world?
Can a dream sustain a lifetime?
A century ago, an astronomer discovered an Earth-like planet orbiting a nearby star. She predicted that one day humans would travel there to build a utopia. Today, ten astronauts are leaving everything behind to find it. Four are veterans of the twentieth century’s space-race.
And six are teenagers who’ve trained for this mission most of their lives.
It will take the team twenty-three years to reach Terra-Two. Twenty-three years locked in close quarters. Twenty-three years with no one to rely on but each other. Twenty-three years with no rescue possible, should something go wrong.
And something always goes wrong.
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The City & The City
China Miéville
Sci-Fi
One murder.

The City & The City
China Miéville
Sci-Fi
Our take
One murder. Two cities that occupy the same space—but must never acknowledge each other. The City & The City by China Miéville (4.2 stars on Amazon!) is an award-winning speculative noir that bends reality, borders, and the detective genre itself. Winner of the Hugo, Locus, and World Fantasy Awards, it’s one of the most original mysteries you’ll ever read.
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About the book
Two cities. One body. And a murder that defies borders—real or imagined.
In Besźel, a decaying Eastern European city, Inspector Tyador Borlú investigates the death of a murdered woman. But when evidence suggests she was killed in Ul Qoma—a vibrant city that exists in the same physical space as Besźel—Borlú must cross not just political lines, but mental ones.
To see Ul Qoma, you must unsee Besźel—and vice versa. Breaking this rule isn’t just taboo, it’s a crime.
As Borlú partners with Ul Qoman detective Qussim Dhatt, the mystery deepens into a surreal exploration of identity, nationalism, and the blurred lines of reality.
Winner of the Hugo, Locus, and World Fantasy Awards, The City & The City is a genre-defying masterpiece of noir, speculative fiction, and philosophical intrigue.
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Six Wakes
Mur Lafferty
Sci-Fi · Thriller
Six clones awaken aboard a deep-space ship to find their previous bodies murdered and their memories wiped.

Six Wakes
Mur Lafferty
Sci-Fi · Thriller
Our take
Six clones awaken aboard a deep-space ship to find their previous bodies murdered and their memories wiped. Maria Arena and her fellow crew members must reconstruct their past lives to uncover which one of them committed the crime. This locked-room science fiction thriller blends identity, memory, and moral ambiguity within the claustrophobic isolation of interstellar travel.
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About the book
In this Hugo nominated science fiction thriller by Mur Lafferty, a crew of clones awakens aboard a space ship to find they're being hunted-and any one of them could be the killer.
Maria Arena awakens in a cloning vat streaked with drying blood. She has no memory of how she died. This is new; before, when she had awakened as a new clone, her first memory was of how she died.
Maria's vat is one of seven, each one holding the clone of a crew member of the starship Dormire, each clone waiting for its previous incarnation to die so it can awaken. And Maria isn't the only one to die recently. . .
Unlock the bold new science fiction thriller that Corey Doctorow calls Mur's "breakout book".
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The Stars Undying
Emery Robin
Sci-Fi · Space Opera
After losing her throne to her twin, Princess Altagracia bargains with a conquering empire to reclaim her world.

The Stars Undying
Emery Robin
Sci-Fi · Space Opera
Our take
After losing her throne to her twin, Princess Altagracia bargains with a conquering empire to reclaim her world. Caught between imperial ambition, dangerous desire, and a god-bound machine, she must choose what kind of ruler to become. This queer space opera blends politics, myth, and betrayal, earning praise for its scope and daring.
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About the book
A "dazzling" tale of empire and betrayal set among the stars (#1 New York Times bestselling author Casey McQuiston), this queer, spectacular space opera draws inspiration from Roman and Egyptian empires—and the lives and loves of Cleopatra and Julius Caesar.
Princess Altagracia has lost everything. After a bloody civil war, her twin sister has claimed both the crown of their planet, Szayet, and the Pearl of its prophecy: a computer that contains the immortal soul of Szayet’s god.
So when the interstellar Empire of Ceiao turns its conquering eye toward Szayet, Gracia sees an opportunity. To regain her planet, Gracia places herself in the hands of the empire and its dangerous commander, Matheus Ceirran.
But winning over Matheus, to say nothing of his mercurial and compelling captain Anita, is no easy feat. And in trying to secure her planet’s sovereignty and future, Gracia will find herself torn between Matheus’s ambitions, Anita’s unpredictable desires, and the demands of the Pearl that whispers in her ear.
For Szayet’s sake and her own, she will need to become more than a princess with a silver tongue. She will have to become a queen as history has never seen before.
"A glittering triumph of a book that weaves together history and tragedy into a star-spanning epic." —Everina Maxwell, author of Winter’s Orbit
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The Twelve: The Passage Trilogy Book 2
Justin Cronin
Sci-Fi · Thriller
In the present, chaos reigns as three strangers fight for survival, each clinging to hope amid ruin.

The Twelve: The Passage Trilogy Book 2
Justin Cronin
Sci-Fi · Thriller · Post-Apocalyptic
Our take
In the present, chaos reigns as three strangers fight for survival, each clinging to hope amid ruin. A century later, Amy and her allies face an evolved enemy and a dark new order bent on humanity’s destruction. With everything at stake, sacrifice is inevitable in this thrilling tale of courage, survival, and the enduring power of hope.
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About the book
As a man-made apocalypse ravages the present day, three strangers struggle to survive. Lila, a doctor and expectant mother, clings to hope for her unborn child amid a collapsing society. Kittridge, the infamous “Last Stand in Denver,” flees through desolation, knowing his survival depends on dwindling resources. Teenage April, guarding her little brother, battles through a wasteland of death. In their shared struggles, a glimmer of connection offers a fragile hope.
A century later, Amy and her allies fight to save humanity. But their enemy has transformed, and a new dark order threatens an unimaginable future. To defeat the Twelve, a devastating sacrifice will be required.
A gripping saga of survival and courage, The Twelve unveils a harrowing fight against extinction—and the enduring power of hope.
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Colossus
Ryan Leslie
Sci-Fi
Economics professor Clay West has always explained the world through the lens of his profession.

Colossus
Ryan Leslie
Sci-Fi
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About the book
Economics professor Clay West has always explained the world through the lens of his profession. But after his girlfriend Karla takes Dying Wish—a drug that supposedly reveals the nature of reality moments before it claims your life—Clay is devastated. No amount of rationalization can explain Karla's actions.
Distraught, Clay joins a mission into the dark emptiness of space where answers are promised to reside. But when the ship begins to malfunction, Clay and the surviving crew members suspect there's more to the mission than they've been told. They've been lied to, and they're drifting into dead space.
Clay's memories of Karla haunt him even more than the ship's chaos, and there's something wrong with his memories: he has too many. The ship's Al tells Clay his false memories are a normal side-effect of the hibernation, but to Clay, the memories suggest something far more insidious.
He's been on this ship before...
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