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

Deep Black
Miles Cameron
Sci-Fi · Space Opera
The Greatships are humanity’s lifeline, but alien forces have set their sights on these colossal vessels.

Deep Black
Miles Cameron
Sci-Fi · Space Opera
Our take
The Greatships are humanity’s lifeline, but alien forces have set their sights on these colossal vessels. Marca Nbaro and her crew face a race against time to uncover their enemy, protect vital trade routes, and preserve humanity’s fragile future. As tensions rise and alliances falter, survival comes with an ever-mounting cost.
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About the book
In the vast reaches of space, the Greatships keep civilization alive. Now someone wants them dead.
Marca Nbaro once dreamed of serving aboard these massive vessels, carrying priceless cargo between distant orbitals and trading with alien species beyond human understanding. Now that dream has become a fight for survival.
When attacks begin to target the Greatships, Nbaro and her crew must uncover an enemy hidden in the endless dark—a threat capable of ending not just their mission, but humanity’s fragile web of trade and trust.
From acclaimed author Miles Cameron, Deep Black continues the Artifact Space saga with heart-pounding tension, sweeping world-building, and the courage of those who dare to face the unknown.
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The Stars Within
Lena Alison Knight
Sci-Fi · Space Exploration
For Kerelle Evandra, escape was impossible—until the corporation sold her lover’s contract, shattering her illusion of safety.

The Stars Within
Lena Alison Knight
Sci-Fi · Space Exploration
Our take
For Kerelle Evandra, escape was impossible—until the corporation sold her lover’s contract, shattering her illusion of safety. Now, she must risk everything to break free from the system that controls her. A thrilling sci-fi adventure filled with psionic powers, corporate tyranny, and the fight for freedom.
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About the book
Escape was impossible… until she had nothing left to lose.
For Kerelle Evandra, her psionic powers mean three things: mandatory service to a multigalactic corporation, a life of luxury as a prized asset, and an electronic collar that will kill her if she disobeys. As a powerful telekinetic, she’s spent the last decade fighting wars for her corporate masters, trapped in a gilded cage alongside her lover, Galhen Ambrel. Defiance has always been unthinkable—until the corporation sells Galhen’s contract to a distant oligarch, shattering Kerelle’s illusion of safety.
Now, with nothing left to lose, Kerelle faces a choice: obey and remain a weapon, or risk everything for freedom. But rebellion comes with a price, and she must decide how far she’s willing to go.
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Hyperion
Dan Simmons
Sci-Fi · Space Opera
A strong match for readers drawn to epic science fiction with pilgrimage narratives, cosmic mystery, time-bending structures, and high-stakes space opera.

Hyperion
Dan Simmons
Sci-Fi · Space Opera
Our take
"An essential part of any science fiction collection” by Booklist, Hyperion follows seven pilgrims traveling to a lawless world where the Shrike waits among the Time Tombs, as galactic war, private secrets, and the fate of humanity converge, with a 4.5-star rating from more than 29,600 Amazon reviewers. A strong match for readers drawn to epic science fiction with pilgrimage narratives, cosmic mystery, time-bending structures, and high-stakes space opera.
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About the book
A stunning tour de force filled with transcendent awe and wonder, Hyperion is a masterwork of science fiction that resonates with excitement and invention, the first volume in a remarkable epic by the multiple-award-winning author of The Hollow Man.
On the world called Hyperion, beyond the reach of galactic law, waits a creature called the Shrike. There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all.
On the eve of Armageddon, with the entire galaxy at war, seven pilgrims set forth on a final voyage to Hyperion seeking the answers to the unsolved riddles of their lives. Each carries a desperate hope—and a terrible secret. And one may hold the fate of humanity in his hands.
Praise for Dan Simmons and Hyperion
“Dan Simmons has brilliantly conceptualized a future 700 years distant. In sheer scope and complexity it matches, and perhaps even surpasses, those of Isaac Asimov and James Blish.”—The Washington Post Book World
“An unfailingly inventive narrative . . . generously conceived and stylistically sure-handed.”—The New York Times Book Review
“Simmons’s own genius transforms space opera into a new kind of poetry.”—The Denver Post
“An essential part of any science fiction collection.”—Booklist
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The Cranio-Genesis Project
Terence J. Murphy
Sci-Fi
When Iran unveils a seemingly invincible army, the U.S. scrambles for answers.

The Cranio-Genesis Project
Terence J. Murphy
Sci-Fi
Our take
When Iran unveils a seemingly invincible army, the U.S. scrambles for answers. Unaware of their connection to the threat, neuroscientists Heidi and Peter are called to reawaken subjects from a secret experiment gone awry. As alliances fracture, the untrained subjects may be humanity’s only hope against global domination.
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About the book
A decade-old experiment, a deadly betrayal, and a new world order poised for war.
When neuroscientists Drs. Heidi and Peter Davidson pioneered the Cranio-Genesis Project, they aimed to advance humanity. But an unknown force twisted their work into something sinister. Now, the project’s once-secret subjects could be the last hope as President Paul Schmidt grapples with Iran’s sudden, mysterious military dominance, aided by an invincible army.
Amid international chaos, Heidi and Peter are called back to activate the hidden, untrained subjects to counter the escalating threat. The stakes couldn’t be higher as the U.S. faces an unstoppable force—and humanity itself stands on the brink.
Will these hidden weapons of science be enough to avert catastrophe, or has Cranio-Genesis doomed the world?
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Descendant of War
G J Ogden
Sci-Fi · Space Exploration
Commander Dalton Reeves, exiled to a corrupt space outpost, discovers an ancient alien enemy bent on revenge against his legendary bloodline.

Descendant of War
G J Ogden
Sci-Fi · Space Exploration · Space Opera
Our take
Commander Dalton Reeves, exiled to a corrupt space outpost, discovers an ancient alien enemy bent on revenge against his legendary bloodline. As interstellar tensions reach a boiling point, Reeves must confront his dark legacy to prevent a galaxy-wide war—and finally claim his place as the hero the galaxy needs.
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About the book
The descendant of two legendary soldiers, Commander Dalton Reeves has inherited not only their courage but their darkest legacy.
After years of breaking the rules, maverick warship commander Reeves is finally exiled to Concord Station—an isolated space city notorious for its corruption and lawlessness. This “punishment” is his last shot at redeeming his career, but a forgotten enemy lurking in Shadow Space has other plans.
As ancient aliens reemerge, they seek vengeance against the descendant of the soldiers who destroyed their world. Now, with six galactic realms on the brink of war, Reeves finds himself at the center of a looming conflict that could plunge the galaxy into chaos.
Will Dalton Reeves rise as the hero he’s meant to be, or fall to the shadow of his bloodline?
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Synthesis
K. A. Riley
Dystopian · Sci-Fi
Kress and her allies prepare for a final, high-stakes battle against Krug and his powerful Patriot Army.

Synthesis
K. A. Riley
Dystopian · Sci-Fi
Our take
Kress and her allies prepare for a final, high-stakes battle against Krug and his powerful Patriot Army. As secrets surface and tensions rise, the fate of millions hangs in the balance. With betrayal at every turn, Kress must risk everything to protect her people and reclaim a nation on the brink.
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About the book
As war looms, Kress and her Conspiracy are on the brink of a last, desperate stand. Reunited with friends and allies—Survivalists and the mysterious Unkindness—Kress gains strength from the bonds she’s fought so hard to protect. But each victory reveals new dangers, and terrifying secrets about their enemy, Krug.
With the Patriot Army poised to strike, Kress faces the daunting truth: failure means the loss of everything she holds dear, and the end of freedom for millions. Every decision, every alliance, could tip the scales between survival and devastation.
In a battle where loyalty is fragile and betrayal lurks in every shadow, Kress must rally her forces and confront Krug head-on. Can they defy the odds and reclaim their world, or will darkness prevail?
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Star Heroes: Super Box Set
G J Ogden
Sci-Fi · Space Exploration
Hudson Powell’s plan to change his life backfires when he stumbles upon an ancient alien relic of devastating power.

Star Heroes: Super Box Set
G J Ogden
Sci-Fi · Space Exploration
Our take
Hudson Powell’s plan to change his life backfires when he stumbles upon an ancient alien relic of devastating power. Now, hunted by mercenaries and the corrupt Relic Guardian Force, Hudson faces a terrible truth: some alien secrets are meant to stay buried—before they tear the galaxy apart.
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About the book
A bad decision. A powerful alien relic. A mistake that could destroy the galaxy…
Freelance starship pilot Hudson Powell is ready to turn his life around and finally make something of himself by joining the Relic Guardian Force. But his new job policing alien wreck sites—and his insufferable, power-tripping training officer—quickly sour his ambitions.
Quitting the force, Hudson finds himself swept into the world of relic hunters, where he encounters Tory Bellona, a mercenary as dangerous as she is captivating. Together, they unearth a mysterious crystal capable of unimaginable destruction—an alien power that’s been lying dormant for eons.
But as Hudson soon learns, some relics are best left buried. Now, the galaxy teeters on the edge, and Hudson may be the one to tip it over.
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Omega Rising
Joshua Dalzelle
Sci-Fi · Space Exploration
Jason Burke’s quiet mountain life shatters when he stumbles upon a crash—and finds himself aboard a damaged alien ship.

Omega Rising
Joshua Dalzelle
Sci-Fi · Space Exploration
Our take
Jason Burke’s quiet mountain life shatters when he stumbles upon a crash—and finds himself aboard a damaged alien ship. Trapped in a universe ruled by ruthless crime lords and conspiracies, Jason faces impossible choices as he struggles to survive—and maybe even find his way back to Earth.
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About the book
Jason Burke thought he’d left the chaos of life behind, retreating to a quiet cabin in the Rocky Mountains. But one night, his solitude is shattered by a fiery crash in the wilderness. When he investigates, Jason finds himself trapped aboard a damaged alien spacecraft, suddenly thrust into a universe of galactic crime lords, strange alliances, and dangerous government conspiracies.
Struggling to return to Earth, Jason must navigate a deadly world of interstellar politics, where every step could be his last. With enemies closing in and nowhere to turn, he realizes his journey back home may demand more than he ever imagined.
Is this the end of his quiet life—or the start of an extraordinary adventure?
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Sacrifice
K. A. Riley
Dystopian · Sci-Fi
Imprisoned in a high-tech lab called the Mill, Kress and her friends endure psychological torment and cruel experiments led by a group of rogue Emergents.

Sacrifice
K. A. Riley
Dystopian · Sci-Fi · Post-Apocalyptic
Our take
Imprisoned in a high-tech lab called the Mill, Kress and her friends endure psychological torment and cruel experiments led by a group of rogue Emergents. Forced through brutal VR missions, Kress must confront painful choices and sacrifice to survive—but escape may come at a cost too steep to pay.
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About the book
Trapped in the Mill, a vast prison-lab run by rogue Emergents, Kress and her Conspiracy fight to survive relentless experiments and twisted mind games. Their captors—the Hypnagogics—subject them to brutal psychological manipulations, grueling physical tests, and invasive techno-genetic trials designed to break them.
Led by the ruthless "Auditor," the Hypnagogics push Kress and her friends through harrowing VR missions, each more nightmarish than the last. With every revelation, Kress faces impossible choices that test her loyalty, strength, and sanity.
But escape comes at a cost, and the ultimate sacrifice may be their only path to freedom. Will Kress dare to make it, or will the Mill claim her soul?
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Chance
Matthew FitzSimmons
Sci-Fi · Thriller
For Chance Harker, cloning is survival—and fame.

Chance
Matthew FitzSimmons
Sci-Fi · Thriller
Our take
For Chance Harker, cloning is survival—and fame. But after his latest "refresh," he's accused of murder, and the victim is a stranger he’s never met. Racing against the LAPD, his past kidnappers, and an enraged public, Chance must unravel the truth before he loses this life for good.
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About the book
For Chance Harker, cloning is more than a privilege—it’s survival. Five years after he and his brother Marley were murdered in a botched kidnapping, Chance lives on through countless cloned versions of himself, turning his near-death experiences into viral social media stunts. But fame brings risks, and after his latest “refresh,” Chance wakes to a shocking accusation: he’s suspected of killing a man he’s never met.
Unsure if one of his clones could be responsible, Chance races to uncover the truth of his fractured existence. Each answer unravels dark secrets about his past, the tragedy that broke his family, and a stranger’s mysterious death.
Now, he must stay one step ahead of the LAPD, his resurfaced kidnappers, and a furious public demanding justice. But can he trust himself?
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Enemy Below
Devon C. Ford
Fantasy · Sci-Fi
In a war hidden from humanity, US Marine Troy Odell faces enemies he once thought belonged only in nightmares.

Enemy Below
Devon C. Ford
Fantasy · Sci-Fi
Our take
In a war hidden from humanity, US Marine Troy Odell faces enemies he once thought belonged only in nightmares. Surviving a brutal mission that revealed the existence of demons, he’s drawn into a battle for Earth’s survival—one that will push him beyond his limits and redefine his reality.
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About the book
A hidden war rages beneath the surface, as demons walk the Earth and a select few fight to keep them in the shadows where they belong.
US Marine Raider Troy Odell knows combat, but nothing has prepared him for the secret battle he’s now thrust into. As the only survivor of his team, Odell discovers that the war between demons and humanity is disturbingly real—and he’s one of the few who can keep it hidden.
But as Odell grapples with his new role, he learns their side is vastly unprepared for what’s coming. If he can’t adapt, everything—and everyone—he knows will be at risk.
Can Odell rise to face an enemy unlike any he's known, or will darkness claim the Earth?
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The Worst Ship in the Fleet
Skyler Ramirez
Sci-Fi · Galactic Empire
Perfect for fans of space opera with a comedic twist!

The Worst Ship in the Fleet
Skyler Ramirez
Sci-Fi · Galactic Empire · Military Sci-Fi
Our take
Brad Mendoza is an idiot. Everyone knows it. But when an enemy warship threatens his ship and crew, dumb luck might be his only hope. Dumb Luck and Dead Heroes is an action-packed military sci-fi adventure filled with thrilling space battles, unexpected twists, and sharp humor. Perfect for fans of space opera with a comedic twist!
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About the book
Brad Mendoza is an idiot. He knows it, and so does everyone else in the star nation of Prometheus.
Once a rising naval officer, Brad’s career crashed when a single mistake cost five hundred lives. Now, he’s been buried on Persephone—the worst ship in the fleet, a floating joke meant to keep him out of the way. But his new executive officer, Jessica Lin, is brilliant, fearless, and hiding something dangerous.
When an enemy warship four times their size closes in, Brad must lead a crew that doesn’t trust him and save a woman he can’t afford to care about. If he fails, they all die—and maybe they deserve to.
The Worst Ship in the Fleet opens Skyler Ramirez’s explosive Dumb Luck and Dead Heroes universe with sharp wit, high stakes, and heart.
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