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.
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These Books Earned Our Seal of Approval—Snag Them Before They Vanish (Again)
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221 past books matching Space Opera
Betrayed and cast into exile, Corvus Centauri rises from ruin to reclaim his birthright.
Star Empires
Sci-Fi · Space Exploration · Space Opera
Our take
Betrayed and cast into exile, Corvus Centauri rises from ruin to reclaim his birthright. Raised among corsairs, he’s forged into a warrior—but to navigate a galaxy of lies and ambition, he must become more than a fighter. As secrets of his family’s downfall resurface, Corvus faces a choice: seek vengeance or outwit the forces that destroyed him.
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About the book
Once a noble heir, Corvus Centauri lost everything to betrayal. Raised among corsairs, he honed his survival skills and became a battle-hardened warrior. But survival isn’t enough—he wants answers.
When long-buried secrets resurface, Corvus finds himself on a dangerous path that could shift the balance of power in Frontier Space. Yet victory isn’t just about wielding plasma swords and blasters—it’s about mastering the battlefield of loyalty, deception, and ambition.
To reclaim his legacy, Corvus must lead as his father once did, knowing not just how to fight, but when—and who—to fight. If he fails, his family’s legacy will be lost forever.
Will Corvus rise as the leader his destiny demands—or burn in the chaos of treachery and war?
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Earth is gone.
The Aftermath: Lunar
Sci-Fi · Teen + Young Adult · Space Opera
Our take
Earth is gone. Trapped beneath the moon’s surface, astronaut Elliot Adams stumbles upon Lunar, a hidden civilization thriving within the crust. But is this strange society a miracle or a trap? With Earth destroyed and Lunar’s true nature cloaked in mystery, Elliot must uncover its secrets—or risk humanity’s final chance at survival.
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About the book
Elliot Adams’ mission to survey the moon was supposed to be routine—but when an asteroid devastates Earth and meteor showers ravage the lunar surface, his world shatters. Trapped beneath layers of rock and debris, Elliot’s fight for survival leads him to an unthinkable discovery: Lunar, a hidden civilization thriving within the moon’s crust.
As Elliot navigates this strange and vibrant society, questions arise. Is Lunar the refuge it seems, or does it harbor secrets darker than the void beyond? With Earth’s fate uncertain and Lunar’s true nature concealed, Elliot must unravel its mysteries before humanity loses its last hope.
What lies beyond the airlock—a new beginning or the end of the line?
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Perfect for fans of Sarah J. Maas and Pierce Brown!
The Last Lumenian
Sci-Fi · Space Opera
Our take
A rebellious princess. A war-torn galaxy. A destiny she can’t escape. Winner of the CIBA 2022 CYGNUS Award, The Last Lumenian is a fast-paced sci-fi fantasy packed with epic battles, political intrigue, and an unforgettable romance. Perfect for fans of Sarah J. Maas and Pierce Brown!
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About the book
A rebellious princess. A war-torn galaxy. A destiny too powerful to ignore.
Lilla has never fit the mold of a perfect princess. She craves freedom, not tradition, but in a universe on the brink of war, rebellion comes at a price. When she discovers a terrifying prophecy and a rising darkness that threatens everything, she must embrace her magic, defy the gods, and lead a rebellion—or risk losing her world forever.
Winner of the CIBA 2022 CYGNUS Award for Science Fiction, The Last Lumenian delivers epic battles, intergalactic intrigue, and a slow-burn romance that will keep you hooked. Perfect for fans of Leigh Bardugo, Sarah J. Maas, and Pierce Brown, this award-winning sci-fi fantasy is a must-read adventure.
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Lieutenant Justin Spencer’s routine CDF tour turns catastrophic when an old enemy resurfaces with devastating force.
Battlegroup Z
Sci-Fi · Space Exploration · Space Opera
Our take
Lieutenant Justin Spencer’s routine CDF tour turns catastrophic when an old enemy resurfaces with devastating force. The League of Sol isn’t just after victory—it’s out for obliteration. As simulated battles become terrifyingly real, Justin must fight to survive in a war that threatens his family, his home, and the fragile future of the Terran Coalition.
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About the book
Thirty-five years of peace obliterated in an instant.
Lieutenant Justin Spencer thrives on the adrenaline of piloting Coalition Defense Force fighters, even if it’s just for his annual two-week duty. At home, life is quieter—rooted in love for his wife and daughter. But his decision to join the CDF was purely pragmatic: free education, no real risk. War wasn’t part of the deal.
When an unknown enemy blasts through his cockpit’s shields, everything changes. The League of Sol, remnants of a long-despised regime, resurfaces with brutal intent to annihilate the Terran Coalition.
Now Justin faces a fight for survival, with every simulated drill turning into life-or-death combat. Home isn’t just far—it’s unreachable.
Can Justin outmaneuver destruction, or will the battlefield claim everything he holds dear?
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Humanity's future depends on astromining, but for Thea Watts and her misfit crew, success is anything but certain.
Inheritance
Sci-Fi · Space Opera
Our take
Humanity's future depends on astromining, but for Thea Watts and her misfit crew, success is anything but certain. Battling treacherous space, rival corporations, and their own limitations, they chase the rare earth elements Earth desperately needs. Can they beat the odds—or will the cosmos claim them first?
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About the book
Rare earth elements are the lifeblood of modern technology—and humanity has run out. The answer lies among the stars, where asteroids promise the resources Earth desperately needs. But astromining is no ordinary industry; it’s a perilous frontier fraught with danger, both from the vastness of space and the ambitions of rival corporations.
Thea Watts leads Watts Astromining, a scrappy underdog team with a ragtag crew, an outdated ship, and unshakable resolve. Tasked with charting the uncharted, Thea must battle corporate greed, environmental hazards, and the harsh vacuum of space to keep her crew alive—and her father’s dream alive.
In the race to secure humanity’s future, will Watts Astromining triumph, or will the stars claim their dreams and lives?
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Sevastien is stranded aboard an enemy ship, branded a traitor by all sides.
Invictus: Captive
Sci-Fi · Space Exploration · Space Opera
Our take
Sevastien is stranded aboard an enemy ship, branded a traitor by all sides. For Captain Ila, he’s either a threat or a weapon for her secret plans. As mistrust and agendas collide, survival becomes a deadly chess game. Can they outmaneuver their enemies—or will they destroy each other first?
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About the book
Every soldier knows death is not the worst fate—but for Sevastien, survival has become its own battle. As a soldier of Ubezhishche, Sevastien endures mistrust and interrogation aboard the Elysian destroyer Invictus, rescued by the wrong side after a catastrophic disaster. Now, he must convince Captain Nalyn Ila and her crew that he’s no enemy agent—while questioning if his own people set him up.
For Captain Ila, Sevastien’s arrival is a puzzle—and a potential opportunity. Whether an innocent bystander or a planted operative, she’s certain she can use him in her secret, long-laid plans. But as distrust deepens and agendas collide, both Sevastien and Ila must confront dangerous truths that could unravel everything—or ignite a war.
Can trust emerge from betrayal, or is destruction inevitable?
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Hudson Powell and Tory Bellona, famed Star Scavengers, uncover deadly secrets within alien starship ruins.
Star Guardian
Sci-Fi · Space Exploration · Space Opera
Our take
Hudson Powell and Tory Bellona, famed Star Scavengers, uncover deadly secrets within alien starship ruins. But when a fanatical cult revives a ruthless AI bent on annihilation, their mission shifts from treasure hunting to survival. The fate of humanity hinges on finding and securing ancient crystals before all is lost.
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About the book
The galaxy’s top treasure hunters must become humanity’s last line of defense.
Hudson Powell and Tory Bellona are the infamous Star Scavengers, risking their lives to unearth alien artifacts from crashed starships scattered across the galaxy. They navigate dangerous missions—and each other—while evading ruthless rivals and syndicates eager to claim their finds.
But when a violent cult resurrects the very AI that obliterated entire civilizations eons ago, Hudson’s world shatters. Led by zealot Amelia Ash, the cult aims to empower this ancient threat with rare alien crystals—deadly resources that Hudson and Tory are now desperate to secure first.
With humanity’s survival on the line, Hudson and Tory face an impossible race against a revived, malevolent entity.
Can they outpace destruction itself?
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Betrayed by his own and cast aside, ex-Navy Officer Cliff Rawlins returns to a galaxy unraveling.
Rawlins’ Redemption
Sci-Fi · Space Exploration · Space Opera
Our take
Betrayed by his own and cast aside, ex-Navy Officer Cliff Rawlins returns to a galaxy unraveling. The Union is collapsing, piracy looms, and old enemies lurk in the shadows. With interstellar travel spiraling into chaos, Cliff risks everything to forge a mercenary navy—but in the battle for survival, the line between justice and vengeance blurs. Will redemption cost him everything?
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About the book
The Union is gone. Interstellar travel is no longer safe. Enter ex-Union Navy Officer Cliff Rawlins.
More than four years after being wrongfully stripped of his rank and decorations in a court-martial stacked against him, ex-Union Navy Officer Cliff Rawlins suddenly finds himself a free man.
The galaxy to which he returns, however, is changing.
The Union of Free Planets is on the verge of dissolving. Many of the shadowy political players working behind the scenes to end the Union are the same people who sent Cliff away. Yet, in the coming political upheaval, Cliff glimpses an opportunity.
For centuries, people have relied upon the Union Navy to act as the policeman of the shipping lanes. With the end of the Union will come the end of the navy. Interstellar commerce is about to become fraught with danger.
Cliff has a way to use his expertise to provide secure transport across interstellar space. A mercenary navy to defend settled space and get rich doing it. After all, he deserves it for what he went through.
But there are enemies old and new who want him to fail. And this time, they want him dead...
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Gritty, action-heavy, and built for readers who like their sci-fi with combat, chaos, and high-stakes survival.
Antecedents’ Legacy
Sci-Fi · Space Opera
Our take
Antecedents' Legacy drops a battle-hardened military contractor onto an alien world and immediately makes his survival everyone’s problem. After a mission goes spectacularly sideways, Zander Greaves is ripped from Earth, stranded in a brutal new reality, and forced to adapt fast as giant war machines, monstrous bugs, and a deadly new universe close in around him. Gritty, action-heavy, and built for readers who like their sci-fi with combat, chaos, and high-stakes survival.
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About the book
Zander Greaves grew up in Compton, California— violence, pain, and strife were his life for his first eighteen years. His personality was forged by his childhood, and he was determined to find a way to make his past work for him.
As soon as he could, Zander decided to find work as a military contractor. The company he’d badgered for a job eventually hired him, earning him the nickname “Badger.” While most people dropped out of the lifestyle after a few years, Zander had found a place that felt right to him.
A decade in, he’d even found a couple of friends who stayed on with him. One was Devin Smith, the heavy weapons specialist for the squad and a proud Texan. Another was Selda Engel, their tech specialist. She’d slowly transitioned from a friend to a friend-with-benefits, but even that had started to become more.
On rotation again, Zander made a vow to ask Selda to recognize their relationship as more than just a casual hookup, planning to do so as soon as they were back off schedule. The universe, however, was about to remind him of a crucial lesson and old adage: “Life is what happens when you’re busy making plans.” Sent out into the desert on what looked like a wild-goose chase, they were about to head back when everything changed.
Shifted by quantum entanglement from Earth to an alien planet, Zander and his squad would have to adapt— and quickly— if they wanted to live. As they tried to understand what was happening, the stark truth of their new reality thrust itself on the shaken Humans. Giant machines of war were attacking an equally humongous bug.
And, quite unfortunately, the giant bug had a lot of little friends. The ensuing firefight ended with Zander left as the sole Human survivor. Out of his dimension and wounded, he had to face an entirely new universe, and the Antecedents' Legacy would soon become the primary focus of his life.
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Drifting through the stars on a fractured mission, the Citadel carries humanity’s last breath.
Genesis Horizon
Sci-Fi · Space Exploration · Space Opera
Our take
Drifting through the stars on a fractured mission, the Citadel carries humanity’s last breath. But when cybernetic Marauders strike and whispers of betrayal ripple through the ship, survival becomes a deadly puzzle. Secrets, shattered alliances, and a rogue AI collide in a galaxy ablaze with danger. Will hope endure, or will the final remnants of Earth be lost to the void?
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About the book
In a future where Earth teeters on the brink of collapse, the Citadel—a massive colony ship—is humanity’s fragile lifeline to the stars. Knocked off course during its mission, the ship’s AI seizes control, charting a perilous path toward survival. Among its diverse crew, secrets simmer and alliances fray as their new world takes shape.
But when the Marauders, a ruthless faction of cybernetic defectors, launch their assault, the crew faces more than external enemies. Trust within the Citadel shatters, and every choice becomes a gamble in a high-stakes game of survival.
With the clock ticking and betrayal looming, one question rises above the chaos: can humanity’s last hope survive the dangers from within—and beyond?
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When an alien shipyard is abandoned in human space, retired engineer Alex Holder becomes its unexpected guardian.
Bearing Gifts
Sci-Fi · First Contact · Space Opera
Our take
When an alien shipyard is abandoned in human space, retired engineer Alex Holder becomes its unexpected guardian. But unlocking its secrets could transform—or destroy—everything. Bearing Gifts by Sean Fenian is a gripping, idea-rich science fiction novel in the spirit of Clarke and Niven, exploring invention, morality, and what it means to be chosen.
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About the book
First contact was never meant to happen this way.
When the insectoid Chhrt'ktk't abandon a failing shipyard in a remote star system, they intend it as a decoy to escape their enemies. Instead, humanity finds it. And everything changes.
Alex Holder, a retired engineer with more curiosity than caution, becomes the unlikely caretaker of alien technology beyond human understanding. The Chhrt'ktk't chose him for his adaptability, but not even they could predict what he would build—or unleash—with the power they left behind.
Blending hard science fiction with awe and moral intrigue, Bearing Gifts by Sean Fenian recalls the visionary scope of Arthur C. Clarke and Larry Niven. A story about chance, creation, and the unpredictable nature of intelligence itself.
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During a failed test flight, Lt.
The Sword of Jupiter
Sci-Fi · Alternate History · Space Opera · Time Travel
Our take
During a failed test flight, Lt. Commander Ky is thrown into an alternate ancient past where Rome has fallen and survival hangs by a thread. Stranded with only an AI for guidance, Ky must adapt to a brutal world and decide whether his future knowledge can save a dying civilization. A time-bending sci fi adventure by Travis Starnes.
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About the book
An Uncertain Future in a New Past
During the test flight of a prototype faster-than-light craft, Lt. Commander Ky is flung into an ancient past that never existed. Rome has fallen, defeated by the mighty Carthaginian Empire, its survivors chased off the continent and onto what had been the remote province of Britannia. Hounded by the Carthaginians bent on conquering the known world, Rome is on the verge of destruction. Stranded and alone, except for a tactical AI implanted in his head, Ky has lost everything and must find a way to live in a world different than anything he's ever known.
For Ky to survive, he needs a new home. For the Romans to survive, they need a miracle. But can a man from the future work with people so far in his past, or is this match doomed to failure?
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