Past Kindle Book Deals but Still Must Read Books!
Looking for must read books you missed the first time around? You’re in the right place. This is where all of our past Kindle book deals live—the ones good enough to click, even if the discount’s gone. Every book here was hand-picked by our team, featured in a daily deal, and still earns a spot on your TBR.
No filler. No bots. Just actually good books at prices that might still be suspiciously low.
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Didn’t grab it when you should have? These past picks are still worth your time.
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These Books Earned Our Seal of Approval—Snag Them Before They Vanish (Again)
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959 past books matching Sci-Fi
It suits readers who want space opera driven by political unrest, moral risk, and the threat of collapse on a galactic scale.
Sword of the Lamb
Dystopian · Space Exploration · Space Opera
Our take
An empire built on hierarchy starts to fracture as rebellion gathers beneath the surface. In Sword of the Lamb, a future heir to power abandons his place in the ruling class and joins a secret movement that could save civilization or destroy what remains of it. It suits readers who want space opera driven by political unrest, moral risk, and the threat of collapse on a galactic scale.
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About the book
The thrilling start to the Phoenix Legacy space opera: "A new classic! Has the sweep and power of Asimov's Foundation Trilogy" (Jean M. Auel, author of the Earth's Children series).
At the heart of the Concord empire, unrest is festering. Unrecognized by the Elite, the ruling class, an undercurrent of rebellion is surging through the enslaved Bond class. It's a threat that could bring down all of civilization, creating a third Dark Age.
Lord Alexand, first born of the House of DeKoven Woolf, stands to inherit a vast industrial conglomerate along with a seat on the Directorate, the Concord's ruling body. But he sees the writing on the wall and realizes that if the Bonds explode into total rebellion, there will be nothing to inherit, and the toll in human suffering will be beyond calculation. He makes the difficult decision to "die" and join the Society of the Phoenix, a clandestine organization whose existence is known to only a few Directorate Lords, who consider membership treason and punishable by death. But it may be humanity's only hope . . .
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Wonder and ruin travel together as humanity carries its oldest habits to a new world.
The Martian Chronicles
Sci-Fi · Space Opera
Our take
Wonder and ruin travel together as humanity carries its oldest habits to a new world. In The Martian Chronicles, linked stories trace Earth’s settlement of Mars through encounters shaped by longing, conquest, memory, and loss. Bradbury blends literary science fiction with haunting atmosphere and quiet emotional force, creating a vision of colonization that feels both mythic and deeply human.
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About the book
Mars was a distant shore, and the men spread upon it in waves... Each wave different, and each wave stronger.
The Martian Chronicles
Ray Bradbury is a storyteller without peer, a poet of the possible, and, indisputably, one of America's most beloved authors. In a much celebrated literary career that has spanned six decades, he has produced an astonishing body of work: unforgettable novels, including Fahrenheit 451 and Something Wicked This Way Comes; essays, theatrical works, screenplays and teleplays; The Illustrated Man, Dandelion Wine, The October Country, and numerous other superb short story collections. But of all the dazzling stars in the vast Bradbury universe, none shines more luminous than these masterful chronicles of Earth's settlement of the fourth world from the sun.
Bradbury's Mars is a place of hope, dreams and metaphor-of crystal pillars and fossil seas-where a fine dust settles on the great, empty cities of a silently destroyed civilization. It is here the invaders have come to despoil and commercialize, to grow and to learn -first a trickle, then a torrent, rushing from a world with no future toward a promise of tomorrow. The Earthman conquers Mars ... and then is conquered by it, lulled by dangerous lies of comfort and familiarity, and enchanted by the lingering glamour of an ancient, mysterious native race.
Ray Bradbury's The Martian Chronicles is a classic work of twentieth-century literature whose extraordinary power and imagination remain undimmed by time's passage. In connected, chronological stories, a true grandmaster once again enthralls, delights and challenges us with his vision and his heart-starkly and stunningly exposing in brilliant spacelight our strength, our weakness, our folly, and our poignant humanity on a strange and breathtaking world where humanity does not belong.
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Long before humanity took to the skies, a shattered world faced the first wave of annihilation from machines built to outlast it.
Into the Storms
Dystopian · Sci-Fi · Post-Apocalyptic
Our take
Long before humanity took to the skies, a shattered world faced the first wave of annihilation from machines built to outlast it. In Into the Storms, three men on separate paths are pulled into the aftermath of the Machine War as dormant threats reawaken, radioactive ruins conceal new dangers, and survival depends on facing a relentless enemy bent on human extinction.
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About the book
In the shadow of extinction, legends are forged. From the New York Times bestselling author Nicholas Sansbury Smith comes Into the Storms, the untold origin story of humanity’s darkest day.
Two and a half centuries before the Hell Divers, the Machine War erupted—autonomous killer robots turning Korea into a battlefield that threatened to consume civilization. As the dust settles, three men stand at the crossroads of humanity’s fate.
CEO Tyron Red, thrust into leadership of the Industrial Tech Corporation after his father’s death, works to reverse the war’s catastrophic effects while battling enemies, both human and machine, lurking in the shadows.
Sergeant Santiago Rodriguez returns to his family in San Diego, a soldier without a war, struggling to pay bills until an ITC contract draws him back to Korea—now transformed into a radioactive wasteland harboring dark secrets that could ignite global conflict.
Corporal Cecil Pepper battles a different kind of enemy while working surveillance for the Charlotte Crime Task Force. When a raid against city gangs goes tragically wrong, Cecil and his wife flee to the mountains of North Carolina seeking safety—unaware that an enemy once thought defeated is awakening across the globe.
As peace crumbles and forgotten machines reactivate, Tyron, Santiago, and Cecil must confront a merciless foe whose only directive is humanity’s extinction. Long before the first Hell Divers leaped from their airships, these heroes stood firmly on the ground to face the storm.
Welcome to the end of the world as they knew it.
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The future looks ridiculous right up until it turns deadly.
Futuristic Violence and Fancy Suits
Sci-Fi
Our take
The future looks ridiculous right up until it turns deadly. In Futuristic Violence and Fancy Suits, Zoey Ashe gets pulled from an ordinary life into a hyperconnected city full of enhanced killers, hidden power plays, and chaos she never asked to inherit. This sci-fi thriller blends sharp satire, violent absurdity, and survival-level momentum with a dark comic edge.
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About the book
New York Times bestselling author Jason Pargin takes readers to a whole new level with his darkly comic sci-fi thriller, Futuristic Violence and Fancy Suits.
An Alex Award Winner
Nightmarish villains with superhuman enhancements.
An all-seeing social network that tracks your every move.
Mysterious, smooth-talking power players who lurk behind the scenes.
A young woman from the trailer park.
And her very smelly cat.
Together, they will decide the future of mankind.
Get ready for a world in which anyone can have the powers of a god or the fame of a pop star, in which human achievement soars to new heights while its depravity plunges to the blackest depths. A world in which at least one cat smells like a seafood shop's dumpster on a hot summer day.
This is the world in which Zoey Ashe finds herself, navigating a futuristic city in which one can find elements of the fantastic, nightmarish and ridiculous on any street corner. Her only trusted advisor is the aforementioned cat, but even in the future, cats cannot give advice. At least not any that you'd want to follow.
Will Zoey figure it all out in time? Or maybe the better question is, will you? After all, the future is coming sooner than you think.
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An abandoned ship promises refuge, but the dead it carries are only the beginning of the danger.
Salvation Day
Sci-Fi · Horror · First Contact · Space Exploration
Our take
An abandoned ship promises refuge, but the dead it carries are only the beginning of the danger. Salvation Day follows a desperate mission to seize a long-lost exploration vessel, only to uncover a buried threat that turns survival into a race against infection, secrecy, and collapse. This is science-fiction horror built on isolation, contagion, and the suffocating tension of waking something that should have stayed dormant.
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About the book
A lethal virus is awoken on an abandoned spaceship in this incredibly fast-paced, claustrophobic thriller.
They thought the ship would be their salvation.
Zahra knew every detail of the plan. House of Wisdom, a massive exploration vessel, had been abandoned by the government of Earth a decade earlier, when a deadly virus broke out and killed everyone on board in a matter of hours. But now it could belong to her people if they were bold enough to take it. All they needed to do was kidnap Jaswinder Bhattacharya—the sole survivor of the tragedy, and the last person whose genetic signature would allow entry to the spaceship.
But what Zahra and her crew could not know was what waited for them on the ship—a terrifying secret buried by the government. A threat to all of humanity that lay sleeping alongside the orbiting dead.
And then they woke it up.
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A second chance becomes something far more dangerous when the job meant to save a man’s future pulls him into a conflict no one is supposed to see.
Foray
Sci-Fi · Military Sci-Fi · Space Exploration
Our take
A second chance becomes something far more dangerous when the job meant to save a man’s future pulls him into a conflict no one is supposed to see. In Foray, former Staff Sergeant Zane Taylor joins a private security firm for access to life-changing treatment and uncovers a hidden war shaping humanity’s reach into space. This sci-fi thriller blends conspiracy, mystery, and off-world danger with a strong action backbone.
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About the book
A hidden conspiracy…
A secret war against mankind…
Something big is coming.
Mankind is branching out, traveling to nearby star systems in search of habitable worlds and valuable resources. Technology continues to advance at a seemingly breakneck pace, but the ability to break the light-speed barrier seems out of reach. Or maybe the conspiracy theorists are right after all, maybe there is a conspiracy between the rich and powerful to hold humanity back.
Second chances don’t come around every day.
Regenerative Therapy can reverse aging, but the costs are staggering. Staff Sergeant Zane Taylor has served for eighteen years, putting his life on the line for the Western Alliance in their ongoing conflicts around the world. But a training accident has derailed his plans for the future and left him without many options.
Willing to do just about anything to get the Regen Therapy that would heal his shattered hip and give him a second chance at life, Zane Taylor took the only option he had left. But no one foresaw what would happen when he joined Exsol, a private security firm offering services to corporate interests on foreign worlds.
There is a secret war brewing. Few know what’s happening, or who is really behind the events shaping life in the Sol system. Join former SSG Zane Taylor as he discovers the alien agenda that is threatening the future of the human race. Foray is the first book in a Conspiracy Sci-Fi series that is loaded with mystery, suspense, and lots of action. Travel through space to the fringe worlds and discover the secrets for yourself. Fans of the X-Files, Firefly, and Stargate will surely love Foray and the entire Alien Agenda series.
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Humanity’s first contact with superior alien allies comes with a cost, and soldiers are the ones sent to pay it.
The War Dogs Trilogy
Sci-Fi · Hard Sci-Fi · Space Exploration · Space Opera
Our take
Humanity’s first contact with superior alien allies comes with a cost, and soldiers are the ones sent to pay it. In The War Dogs Trilogy, Michael Venn and other skyrines are thrown into an interstellar conflict after Earth becomes entangled with the Gurus and their enemies. This military science fiction collection delivers large-scale war, hostile worlds, and the pressure of fighting for humanity’s future.
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About the book
Collected in a single volume for the first time, the epic War Dogs trilogy of interstellar war from a master of science fiction.
The Gurus made their presence on Earth known thirteen years ago. Providing technology and scientific insights far beyond what mankind was capable of, they became indispensable advisors and promised even more gifts that we just couldn't pass up.
But they were followed by mortal enemies -- the Antagonists -- from sun to sun, planet to planet, and now the Gurus are stretched thin -- and they need humanity's help.
Our first bill has come due.
Skyrines like Michael Venn have been volunteered to pay the price. They face insidious enemies who were already inside the solar system, establishing a beachhead on Mars.
Venn and his comrades will be lucky to make it out alive -- let alone preserve the future of all of mankind.
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As the Covenant prepares to begin a high-stakes colonization mission, a string of violent attacks exposes a conspiracy determined to destroy the ship before launch.
Alien Covenant: Origins
Horror · Sci-Fi · Alien Invasion
Our take
As the Covenant prepares to begin a high-stakes colonization mission, a string of violent attacks exposes a conspiracy determined to destroy the ship before launch. With two thousand colonists in danger, Captain Jacob Branson, Daniels, and security chief Daniel Lopé race to uncover the people behind the sabotage and stop the mission from collapsing before it ever leaves Earth’s orbit. This official prequel leans into corporate tension, conspiracy, and looming catastrophe within the Alien universe.
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About the book
The Covenant mission is the most ambitious endeavor in the history of Weyland-Yutani. A ship bound for Origae-6, carrying two thousand colonists beyond the limits of known space, this is make-or-break investment for the corporation—and for the future of all mankind.
Yet there are those who would die to stop the mission. As the colony ship hovers in Earth orbit, several violent events reveal a deadly conspiracy to sabotage the launch. While Captain Jacob Branson and his wife Daniels complete their preparations, security chief Daniel Lopé recruits the final key member of his team. Together they seek to stop the perpetrators before the ship and its passengers can be destroyed.
An original novel by the acclaimed ALAN DEAN FOSTER, author of the groundbreaking Alien novelization, Origins is the official chronicle of the events that led up to Alien: Covenant. It also reveals the world the colonists left behind.
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Markus is sent to an orbital research station expecting a routine assignment, only to find himself on the front line of a hidden war against an alien force…
Extinction Dream
Horror · Sci-Fi · First Contact
Our take
Markus is sent to an orbital research station expecting a routine assignment, only to find himself on the front line of a hidden war against an alien force that attacks through nightmares. As fear and paranoia take hold, his squad must endure psychological torment, mounting losses, and an enemy they cannot even see. This sci-fi horror centers on isolation, mental unraveling, and the terror of fighting something that turns the mind against itself.
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About the book
A dark, science fiction horror novel featuring a mysterious alien enemy, from bestseller Andrew Najberg.
They prey on our nightmares...
Deployed in orbit to what he first believed to be a simple research station, a soldier named Markus is a member of a squad defending Earth on the front line of a secret war against an alien enemy that attacks telepathically, using our nightmares as weapons. They don’t know what the enemy looks like or even why they are attacking.
What they do know is that Earth is losing.
As they sink further into their deepest terrors, they believe they may finally have the chance to take the fight to their enemy – if the hell they’re living in doesn’t cause them to tear each other apart first.
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After a routine smuggling job goes wrong, Jack Kind and his crew are pulled into a dangerous transport mission tied to a military secret and rumors of an…
Deathform
Horror · Sci-Fi · Military Sci-Fi
Our take
After a routine smuggling job goes wrong, Jack Kind and his crew are pulled into a dangerous transport mission tied to a military secret and rumors of an alien discovery in the Kuiper Belt. When the job turns into a double-cross and the cargo is finally opened, they are left facing a threat far beyond anything they expected. This sci-fi horror blends spacefaring suspense, conspiracy, and high-stakes survival with the fate of the solar system in the balance.
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A discovery on a remote moon outpost unleashes a shape-shifting alien that can wear human bodies and mimic its victims with terrifying precision.
Parasite
Horror · Sci-Fi · Alien Invasion · First Contact
Our take
A discovery on a remote moon outpost unleashes a shape-shifting alien that can wear human bodies and mimic its victims with terrifying precision. As communication collapses and stations across space are left exposed, a small group of survivors must face a threat that is already spreading faster than anyone can contain it. This sci-fi horror delivers isolation, paranoia, and a fast-moving extinction-level nightmare.
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About the book
When a guard discovers an unusual lifeform on her remote moon outpost, she disregards protocol to investigate―with catastrophic consequences. It soon becomes clear she's stuck in isolation with an alien capable of incredible depravity. The parasite wears its victims' skins and adopts their personalities. It mimics the way they talk, the way they look, the way they act. It's the perfect disguise.
And by the time humanity realizes it's facing extinction, it's already too late.
As the alien's ruthless progress collapses communication networks, wipes out defenses, and leaves hundreds of stations to fend for themselves, a handful of remarkable individuals must find a way to battle the greatest threat the universe has ever encountered... or die trying.
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Kerys Loring joins an expedition to a distant alien ruin hoping it will revive her stalled career, but the mission quickly turns dangerous when she discovers her abusive…
Wayfarer: AV494
Horror · Sci-Fi
Our take
Kerys Loring joins an expedition to a distant alien ruin hoping it will revive her stalled career, but the mission quickly turns dangerous when she discovers her abusive ex is already on site. As an unstoppable alien threat throws the outpost into chaos, she must navigate deadly corridors, buried truths, and a nightmare far worse than the past she tried to leave behind. This sci-fi horror blends survival, isolation, and creeping dread in a remote off-world setting.
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About the book
Kerys Loring hopes an expedition to a distant alien ruin will make her career—assuming she lives long enough to still have one.
Her last team made a significant find, but her bosses took all the recognition and grant money. When Avasar Biotechnology appeals to her unique combination of experience and desperation, she jumps at the chance, even if it means leaving her little brother behind for a three-year trip.
At least she’ll be thousands of light-years away from her abusive ex.
Within minutes of arrival, her excitement shatters at the sight of her ex already there. Clinging to the hope his position with botanical sciences will keep him away from her team, she forces herself to continue.
On her first day in the ruins, she makes a profound discovery… but something goes terribly wrong.
Her domineering ex soon becomes the least of her problems as an unstoppable alien threat plunges Wayfarer Outpost into chaos. Trapped in an isolated facility with death stalking every corridor, Kerys finds herself up against an even more insidious threat than ancient aliens: the truth.
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