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.
Still discounted? Some deals stick around longer than you'd think.
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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
After escaping the brutal Zalindov prison, Kiva Meridan is set on vengeance.
The Gilded Cage
Dystopian · Sci-Fi · Teen + Young Adult
Our take
After escaping the brutal Zalindov prison, Kiva Meridan is set on vengeance. But the family she dreamed of reuniting with has changed, and loyalties are no longer clear. As rebel tensions rise and threats from the north grow, Kiva must decide who to trust—or risk losing everything she’s fought to reclaim.
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Kiva Meridan survived the horrors of Zalindov prison and the brutal Trial by Ordeal. But survival is no longer enough—now, she craves vengeance.
After escaping to the capital, Kiva hopes to reunite with her family and take down those responsible for their suffering. But the family she dreamed of has changed, and the siblings she remembers now harbor beliefs that complicate her mission. Soon, she’s hiding secrets not only from her enemies but from her own family.
Outside the city, tensions rise as rebels plot and northern kingdoms threaten invasion. Caught between loyalty and her own quest for revenge, Kiva must navigate a web of lies and shifting allegiances.
Will she find a way to protect her family—or lose everything she fought so hard to reclaim?
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After a decade as a POW, Aden Jansen returns to his war-torn home world on a dangerous mission: infiltrate and dismantle Odin’s Wolves, an insurgent group threatening the…
Descent
Sci-Fi · Space Exploration
Our take
After a decade as a POW, Aden Jansen returns to his war-torn home world on a dangerous mission: infiltrate and dismantle Odin’s Wolves, an insurgent group threatening the galaxy’s fragile peace. As Aden regains trust among his former allies, he faces a choice that could destroy everything he’s come to protect.
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After ten years as a prisoner of war, Aden Jansen gets an unexpected offer: a pardon and a return home if he can infiltrate and dismantle Odin’s Wolves, a ruthless insurgency terrorizing his home world of Gretia. This mission is Aden’s chance to reclaim his life—and protect his family.
But Aden isn’t the only one on the hunt. Captain Dunstan Park patrols the stars for rebel pirates, while Aden’s sister, Solveig, pursues those bankrolling the Wolves—an investigation as dangerous as it is personal.
As Aden gains the trust of his former comrades, he finds himself at the heart of a campaign that threatens to ignite galactic chaos.
Can he complete his mission, or will this war claim everything he’s fought to rebuild?
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Felix was stuck in a cycle of dead-end jobs and fading dreams—until he’s thrust into The Continent, a world ruled by monsters and magic.
Dissonance
Fantasy · Cyberpunk
Our take
Felix was stuck in a cycle of dead-end jobs and fading dreams—until he’s thrust into The Continent, a world ruled by monsters and magic. Given the power to grow stronger, he must confront his deepest fears and fight to survive, each battle bringing him closer to an uncertain, dangerous fate.
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A new world. A thousand threats. Welcome to The Continent.
Felix’s life on Earth was an endless loop of dead-end jobs, broken relationships, and cramped apartments. By his own admission, he was a coward—until fate forced his hand. In a moment of courage, Felix faces death, only to awaken on The Continent.
This perilous, magical realm offers him power through a mysterious “System” that rewards his strength and skill. But with every monster he faces, his survival depends on pushing past his limits and overcoming his deepest fears.
With every level gained, Felix inches closer to a destiny unknown to anyone. But will he survive long enough to claim it?
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Stranded beyond the Orun Gate, Epyc Ro and her crew must outwit alien forces to survive, while Captain Stacia Chikeke’s fractured team stumbles upon a cosmic phenomenon that…
Breath of Oblivion
Sci-Fi · Space Exploration · Space Opera
Our take
Stranded beyond the Orun Gate, Epyc Ro and her crew must outwit alien forces to survive, while Captain Stacia Chikeke’s fractured team stumbles upon a cosmic phenomenon that could change everything. Across the galaxy, allies and enemies alike prepare for a struggle that will determine the future of the Muungano empire.
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Stranded beyond the Orun Gate, Epyc Ro and her elite soldiers capture an alien ship in hopes of finding a way home. Their unexpected stowaway might hold the key to survival—if they can outwit the alien forces closing in.
On the Cypher, Captain Stacia Chikeke fights to hold her crew together, while a powerful cosmic discovery ignites their determination. Meanwhile, on Earth, Wachiru Adisa works to free detained children of the diaspora but finds himself trapped in a brutal facility known as the Panopticon.
From the Martian Badlands to the Moon’s Dreaming City, leaders, warriors, and rebels face mounting threats to their world and people. United by their struggles, they must navigate new alliances and old enmities.
Will Muungano’s fractured empire rise against its enemies, or fall under the weight of interstellar conflict?
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When Firewatch agent Alexandra Petrova and her crew reach Paradise-1, they find the colony abandoned—or so they think.
Revenant-X
Sci-Fi · Space Exploration
Our take
When Firewatch agent Alexandra Petrova and her crew reach Paradise-1, they find the colony abandoned—or so they think. As they delve deeper, they realize some colonists remain, but they’re no longer human. With a dark force spreading through the colony, Petrova and her team must fight to escape before it consumes them too.
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Fear the dark—because it’s already claimed Paradise-1.
Firewatch agent Alexandra Petrova and her crew on the Artemis have survived brutal battles and broken through the blockade around Earth’s first deep space colony. But when they finally arrive, they find the colony eerily silent, seemingly abandoned.
Or so it seems.
As Petrova and her team dig deeper, they discover that some colonists remain… but they’re no longer human. Whatever has taken over Paradise-1 is far more sinister than they could have imagined, and it’s spreading.
Now, Petrova and her crew are locked in a fight for survival, unraveling a horrifying mystery with every step. Can they escape the darkness that’s claimed Paradise-1, or will they become its next victims?
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A strong match for readers drawn to action-heavy space opera, political tension, found family, and high-stakes survival.
And the Mighty Will Fall
Sci-Fi · Military Sci-Fi · Space Opera
Our take
As NeoG helps transfer Mars Orbital Station to civilian control, Commander Maxine Carmichael and Lieutenant Commander Saqib Vahid are caught in a violent attack by extremists fighting over Martian independence, with a 4.2-star average from more than 300 Goodreads ratings. A strong match for readers drawn to action-heavy space opera, political tension, found family, and high-stakes survival.
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About the book
With the fourth stand-alone NeoG novel, Die Hard meets A Long Way to a Small, Angry Planet in this nail-biting, action-filled story that’s as much about found family as it is about survival when a peaceful transition of power in the Mars Orbital Station goes terribly wrong as rebels decide this is the moment to make their move, leaving two NeoG members stranded inside a ticking time bomb.
When you’re trapped in space, there’s no way out.
The mission of the Near-Earth Orbital Guard is to ensure the peace and security of the solar system. Commander Maxine Carmichael and Lieutenant Commander Saqib Vahid are at the Mars Orbital Station (MOS) to help facilitate the official handover from NeoG to Mars civilian control as part of the ongoing negotiations. Members of the extreme wings of the fight for Martian independence refuse to remain silent, and are willing to resort to violence to make their voices heard; Max and Saqib find themselves fighting for their lives. The attacks both on the MOS and the ground of Mars sets off a chain reaction that could destabilize the last few years of cautious peace.
The leader of Free Mars, Sylvia Moroz, knows better than anyone how fragile harmony is, having seen for decades the Coalition of Human Nations’ inability to negotiate for peace. Without any assurances—and knowing her splintered people all too well—anything less than complete liberation will only lead to more bloodshed. She’s not opposed to fighting, but when there’s an attempt on her life, she finds she must look for help from the NeoG and Commander D’Arcy Montaglione. The pair will have to overcome their past to figure out who they can trust and how to stop the attacks on the ground before more lives are lost.
Trapped inside the station, Carmichael and Vahid are scrambling to not only get to the bottom of the attackers’ motives, but also to simply survive. Because with the rest of the Zuma’s Ghost crew stuck down on Mars, it’s up to them to do what they can to keep the MOS from fully falling into the wrong hands…and keep Mars from descending into all-out war.
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As a deadly genetic weapon threatens the outer colonies, Adequin Rake and Cavalon Mercer must unite their forces to stop a looming catastrophe.
The Relentless Legion
Sci-Fi · Space Opera
Our take
As a deadly genetic weapon threatens the outer colonies, Adequin Rake and Cavalon Mercer must unite their forces to stop a looming catastrophe. With limited time and uncertain allies, they’re humanity’s last hope against a ruthless plan that could destroy countless lives. But will their strength be enough to prevent disaster?
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About the book
A brutal plan threatens the universe, and only a renegade leader and a rebel heir stand in its way.
The Sentinels, led by the fearless Adequin Rake, have united to fight against a looming horror. Meanwhile, Cavalon Mercer, exiled heir to a powerful family, has uncovered his grandfather’s terrifying genetic weapon—a solution that could wipe out entire colonies in the outer reaches of space.
As the clock ticks down, Rake and Cavalon must rally every ally they can find, using every resource at their disposal to prevent a catastrophe. But against such overwhelming odds, even the bravest warriors may fall short.
With the fate of countless lives hanging in the balance, will their combined strength be enough to save the universe—or is destruction inevitable?
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Awakening in the failing body of an ancient android, Quinton Aldren finds himself in a galaxy ravaged by war.
Acheron Inheritance
Sci-Fi · Space Exploration
Our take
Awakening in the failing body of an ancient android, Quinton Aldren finds himself in a galaxy ravaged by war. Hunted by ruthless machines, he must unlock buried memories that could hold the key to humanity’s survival—if he can survive long enough to uncover them.
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In a broken galaxy, survival is only the beginning for Quinton Aldren.
Quinton Aldren wakes on a desolate planet, trapped in the failing body of an ancient android. With only fragments of his memories intact, he’s thrust into a galaxy reshaped by the brutal Federation Wars—a war he somehow missed but remains entangled with.
As he navigates this hostile new reality, he learns that Federation war machines still scour the galaxy, eliminating remnants of his kind. His past holds secrets that could save humanity, but he must survive long enough to unlock them.
With time running out and enemies closing in, Quinton faces an impossible question: will his forgotten past be humanity’s last hope, or its final downfall?
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Just when returning to Earth seemed within reach, an urgent mission thrusts the crew toward a tense first contact with a volatile alien race.
The Second Artifact
Sci-Fi · First Contact
Our take
Just when returning to Earth seemed within reach, an urgent mission thrusts the crew toward a tense first contact with a volatile alien race. Along the way, they discover an ancient artifact—one with the power to reshape the galaxy. Now, they must protect it before chaos reigns.
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About the book
Returning to Earth was supposed to be simple. But for these space adventurers, trouble is always just one jump away.
Fresh from their first journey, our crew now boasts a powerful new ship and a wedding to plan. But their smooth return to Earth is interrupted by a mission to meet a mysterious alien species—one whose first contact with other civilizations didn’t go well.
As they navigate the unknown, they uncover an ancient artifact, pulsing with mysterious power. It’s a find that could shift the galaxy’s balance, but wielding it might mean risking everything.
With alliances tested and danger closing in, the crew faces a harrowing question: can they safeguard this discovery, or will it bring chaos across the stars?
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Fawn and Brayson escape to a quiet village by the Ruby Mountains, where Fawn begins to feel truly alive.
The World that Was
Dystopian · Sci-Fi
Our take
Fawn and Brayson escape to a quiet village by the Ruby Mountains, where Fawn begins to feel truly alive. But buried secrets and whispers from her past threaten her newfound peace, pulling her back toward a fate she thought she’d left behind. Some truths, it seems, refuse to stay hidden.
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Life is meant for the living... but some pasts won’t let go.
After escaping the horrors of The Nocere, Fawn and Brayson stumble upon a secluded village nestled against the Ruby Mountains. Here, among the villagers’ quiet strength, Fawn experiences a new sense of freedom—and a glimpse of what it means to be truly alive.
But shadows linger. Rumors and buried secrets threaten to unravel her fragile peace, as the haunting pull of the past grows stronger. Fawn’s hard-won serenity begins to crack, and she’s forced to confront a truth that may reshape her destiny.
Can Fawn outrun her past, or is she bound to face the fate she fears most?
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An ancient pyramid beneath Antarctica reveals Earth was once a colony of a brutal galactic empire, and humanity’s existence is an unforgivable crime.
Star Force
Sci-Fi · Space Exploration
Our take
An ancient pyramid beneath Antarctica reveals Earth was once a colony of a brutal galactic empire, and humanity’s existence is an unforgivable crime. Now, with their inevitable return looming, a covert organization races to build defenses in secret, hoping to defy an empire that erased us from history.
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About the book
Buried under the Antarctic ice lies a secret that will change humanity’s fate: an alien pyramid revealing that Earth was once a colony of the ruthless V'kit'no'sat empire, abandoned 100,000 years ago. Humanity’s very existence is illegal, and if the V'kit'no'sat return, they’ll eradicate us all.
When a powerful corporation uncovers this truth, they don’t notify world governments. Instead, they launch a new, covert mission to prepare Earth for an inevitable invasion. But can humanity rally, evolve, and create an empire strong enough to face the coming threat?
As ancient powers resurface, humanity’s survival hangs by a thread. And time is running out before our former masters come back to claim what they left behind.
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Best for readers who like high-concept science fiction about genetic engineering, human evolution, and dangerous technological choices.
Upgrade
Sci-Fi · Techno-Thriller
Our take
After Logan Ramsay's genes are hacked, his mind and body begin changing in extraordinary ways, leaving him to uncover who targeted him and stop a plan to spread the same upgrade across humanity, with a 3.8-star average from more than 130,000 Goodreads ratings. Best for readers who like high-concept science fiction about genetic engineering, human evolution, and dangerous technological choices.
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About the book
NEW YORK TIMES BESTSELLER • “If Michael Crichton had written a superhero novel, it would look a lot like Upgrade.”—The New York Times Book Review
“You don’t so much sympathize with the main character as live inside his skin.”—DIANA GABALDON, #1 New York Times bestselling author of the Outlander series
“Mysterious, fascinating, and deeply moving—exploring the very nature of what it means to be human.”—ALEX MICHAELIDES, #1 New York Times bestselling author of The Silent Patient and The Maiden
ONE OF THE BEST BOOKS OF THE YEAR: Time, She Reads
The mind-blowing new thriller from the New York Times bestselling author of Dark Matter and Recursion—currently in development as a motion picture at Steven Spielberg's Amblin Partners
“You are the next step in human evolution.”
At first, Logan Ramsay isn’t sure if anything’s different. He just feels a little . . . sharper. Better able to concentrate. Better at multitasking. Reading a bit faster, memorizing better, needing less sleep.
But before long, he can’t deny it: Something’s happening to his brain. To his body. He’s starting to see the world, and those around him—even those he loves most—in whole new ways.
The truth is, Logan’s genome has been hacked. And there’s a reason he’s been targeted for this upgrade. A reason that goes back decades to the darkest part of his past, and a horrific family legacy.
Worse still, what’s happening to him is just the first step in a much larger plan, one that will inflict the same changes on humanity at large—at a terrifying cost.
Because of his new abilities, Logan’s the one person in the world capable of stopping what’s been set in motion. But to have a chance at winning this war, he’ll have to become something other than himself. Maybe even something other than human.
And even as he’s fighting, he can’t help wondering: what if humanity’s only hope for a future really does lie in engineering our own evolution?
Intimate in scale yet epic in scope, Upgrade is an intricately plotted, lightning-fast tale that charts one man’s thrilling transformation, even as it asks us to ponder the limits of our humanity—and our boundless potential.
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