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50 past books matching Galactic Empire
Best for readers who enjoy military space opera, political intrigue, and conflicts involving artificial intelligence.
The Killing of Worlds
Sci-Fi · Galactic Empire · Military Sci-Fi · Space Opera
Our take
Called “just as fine a rip-roaring space opera” by Booklist, The Killing of Worlds follows Captain Laurent Zai as he faces an unwinnable battle against a Rix warship. On Legis, a planetary AI seeks to break an Imperial blockade, while Senator Nara Oxham tries to prevent a nuclear strike that would kill millions. Best for readers who enjoy military space opera, political intrigue, and conflicts involving artificial intelligence.
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About the book
"The successor to The Risen Empire is just as fine a rip-roaring space opera"—from the #1 New York Times–bestselling author (Booklist).
Captain Laurent Zai of the Imperial frigate Lynx is a walking dead man. Unjustly held responsible for the death of the Child Empress, sister of the immortal Emperor, Zai has been sent to fight an unwinnable battle. The Lynx must stop a vastly superior Rix ship from reaching the planet Legis, a suicide mission that will almost certainly end in oblivion for Captain Zai and his crew.
On the planet Legis below, a Rix compound mind—a massive emergent AI formed from every computer on the planet—has been isolated by their Imperial blockade. But the mind has guided a lone Rix commando, Herd, to the planet's frozen north, and will soon order a desperate attempt to seize a polar communications array and break the blockade.
Ten light-years away, Captain Zai's true love, the psychic (some say mad) Senator Nara Oxham is engaged in a deadly game of political intrigue. From her position on the Emperor's War Council, Senator Oxham must find a way to forestall the Emperor's final solution if the blockade is broken: a nuclear strike to destroy the compound mind, which will also kill millions of Imperial citizens. She suspects that the Emperor has a hidden weakness discovered by the mind, a secret so dangerous to his immortal dynasty that to prevent its discovery the Emperor is willing to countenance the ultimate crime . . .
The killing of worlds.
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A sharp fit for readers who enjoy space opera, interstellar bounty hunters, military intrigue, and alien conflict.
Galactic Bounty
Sci-Fi · Cyberpunk · Galactic Empire
Our take
Bounty hunter Sam McCade must stop a traitorous navy captain from selling military secrets to the alien Il Ronn. Betrayed by friends and pursued by enemies, he is the Terran Empire’s remaining defense against a devastating alien threat, with a 4.0-star rating from more than 100 Amazon reviewers. A sharp fit for readers who enjoy space opera, interstellar bounty hunters, military intrigue, and alien conflict.
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About the book
First in the action-packed series from the New York Times–bestselling author "known for the complex political and social layout of his future worlds" (Publishers Weekly).
A traitor is on the loose. A treacherous navy captain plans to sell military secrets to the alien Il Ronn. The only man who can stop him is Sam McCade. Betrayed by his friends, stalked by his enemies, McCade is the only one standing between a terrifying alien threat--and the unimaginable devastation of the Terran Empire?
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Ideal for readers looking for space opera with an ex-soldier hero, frontier tensions, dangerous secrets, and galaxy-scale conflict.
Spacebar
Sci-Fi · Alien Invasion · Galactic Empire
Our take
Spacebar: The Complete Series follows former Commonwealth soldier Carson Flint, who runs a saloon on the galaxy’s last neutral ground until a dying man arrives with a secret that draws ruthless warlords to his door. Ideal for readers looking for space opera with an ex-soldier hero, frontier tensions, dangerous secrets, and galaxy-scale conflict.
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About the book
Carson Flint left the Commonwealth's wars behind for the quiet life of running a saloon on the edge of nowhere.
The Bulwark sits on Castus, the last neutral ground in a galaxy that tore itself apart. Smugglers, refugees, and war-weary soldiers drift through its doors, and Carson keeps his corner of it calm by staying out of everyone else's business.
Then a dying man stumbles in carrying a secret worth killing for.
The stranger came out of Commonwealth service, hunted across the stars, holding something the Thortan warlords will level a settlement to reclaim. When their guns reach Castus, neutrality means nothing, and the Bulwark stands between a ruthless militia and a discovery that could reshape a galaxy.
Carson only wanted a quiet life. But some doors, once opened, pull you toward the adventure of a lifetime.
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Good for readers who want sci-fi adventure with ragtag crews, found-family chaos, alien warlords, syndicates, and fast-moving missions.
Starship Bandits Universe
Sci-Fi · Galactic Empire
Our take
Starship Bandits Universe collects seven military space opera adventures about a professor sentenced to orbital garbage duty who becomes a spacefaring outlaw after his crew finds an ancient alien ship. Good for readers who want sci-fi adventure with ragtag crews, found-family chaos, alien warlords, syndicates, and fast-moving missions.
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About the book
Over 3,000 pages of pure science fiction adventure!
When a mild-mannered professor is sentenced to be an Orbital Garbage Reclamation Expert, he doesn’t expect to become a spacefaring outlaw. After his ragtag crew stumbles onto an ancient alien ship, they’re yanked out of Earth’s orbit and dropped into a brutal galaxy where survival favors the bold, the clever… and the slightly unhinged.
Hunted by alien warlords, criminal syndicates, and empires that would rather see them dead than free. The crew of the Junkyard must rely on fast words, faster guns, and each other to stay alive. Every mission pulls them deeper into a galaxy-spanning conflict, where lost civilizations, dangerous alliances, and impossible odds turn scavengers into legends.
Packed with sharp humor, explosive action, and found-family chaos, the Starship Bandits Box Set (Books 1–7) delivers nonstop sci-fi adventure with heart, grit, and just enough bad decisions to keep things interesting.
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This Box Set Includes:
1. Starship Bandits
2. The Last Scoundrel
3. Deadman's Run
4. War Tide
5. Void Signal
6. Dark Matter
7. Eon's Edge
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Good for readers who want sci-fi adventure with ancient alien wars, AI, survival upgrades, and reluctant captains.
Starship Superior
Sci-Fi · Galactic Empire · Military Sci-Fi
Our take
Starship Superior follows Owen Lake, a Lake Superior boat captain who is pulled aboard an advanced unmanned spacecraft and forced into a 100,000-year-old cosmic conflict after an AI bargain leaves Mari and his dog Jack in stasis, with a 4.4-star rating from more than 1,000 Amazon reviewers. Good for readers who want sci-fi adventure with ancient alien wars, AI, survival upgrades, and reluctant captains.
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About the book
Owen Lake never had any interest in space.
After watching his astronaut mother die, he preferred the simple life of a boat captain on Lake Superior. But the simple life was never meant to last.
His charter business is failing, but an opportunity pops up in the form of Dr. Mariana Keller, who's interested in what lies beneath the waves: a mysterious, unnatural blue glow emanating from the depths.
Owen agrees to take her on a clandestine dive to an ancient shipwreck site. With his trusty canine companion Jack by his side, he sets out with Keller, but a simple dive turns into a fight for their lives when a beam pins Mari beneath the wreckage.
As Owen struggles to free her, he is ripped into an underwater hole and finds himself aboard a highly advanced, unmanned spacecraft.
The ship's powerful Artificial Intelligence, which Owen names Jefferson, asks Owen to become a temporary crew member in exchange for the rescue of Mari and Jack. He immediately agrees without a second thought.
After rescuing them, the AI places them in stasis and initiates a launch. With the ship jettisoning Owen, Mari, and Jack toward deep space and a cosmic conflict far beyond Earth's solar system, it's clear there's a lot more to becoming a crew member than Owen could have imagined.
Eleven months later, Owen awakens to discover that he's undergone involuntary biological enhancements that allow him to survive deep space. The enhancements grant him abilities far beyond human limits. But Jefferson's bargain remains absolute: Owen must cooperate and prove his worth on a millennia-old quest for revenge against the enemy Federation... or Mari and Jack will remain frozen forever.
Forced to lead, Captain Owen Lake must now fight a war that began 100,000 years before he was ever born.
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Good for readers who like epic sci-fi, interplanetary politics, and empire-scale conflict.
Sweep of Stars
Sci-Fi · Galactic Empire · Space Opera
Our take
A Locus Award finalist, Sweep of Stars follows the Muungano empire, a coalition stretching from Earth to Titan, as old powers set new plots in motion against everything it has built. Young leaders contend for power while elite warriors and starship crews face threats across the stars, with a 4.1-star rating from Amazon reviewers. Good for readers who like epic sci-fi, interplanetary politics, and empire-scale conflict.
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About the book
Maurice Broaddus's Sweep of Stars is the first in a trilogy that explores the struggles of an empire. Epic in scope and intimate in voice, it follows members of the Muungano empire – a far-reaching coalition of city-states that stretches from O.E. (original earth) to Titan – as it faces an escalating series of threats.
Locus Award Finalist
"The beauty in blackness is its ability to transform. Like energy we are neither created nor destroyed, though many try." - West African Proverb
The Muungano empire strived and struggled to form a utopia when they split away from old earth. Freeing themselves from the endless wars and oppression of their home planet in order to shape their own futures and create a far-reaching coalition of city-states that stretched from Earth and Mars to Titan.
With the wisdom of their ancestors, the leadership of their elders, the power and vision of their scientists and warriors they charted a course to a better future. But the old powers could not allow them to thrive and have now set in motion new plots to destroy all that they've built.
In the fire to come they will face down their greatest struggle yet.
Amachi Adisa and other young leaders will contend with each other for the power to galvanize their people and chart the next course for the empire.
Fela Buhari and her elite unit will take the fight to regions not seen by human eyes, but no training will be enough to bring them all home.
Stacia Chikeke, captain of the starship Cypher, will face down enemies across the stars, and within her own vessel, as she searches for the answers that could save them all.
The only way is forward.
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High Vaultage turns Victorian invention into a citywide tangle of impossible crimes, private detection, and absurd machinery.
High Vaultage
Sci-Fi · Galactic Empire · Steampunk
Our take
High Vaultage turns Victorian invention into a citywide tangle of impossible crimes, private detection, and absurd machinery. In Even Greater London, Archibald Fleet and Clara Entwhistle run a barely respected detective agency until a kidnapping case pulls them into a mystery linked to baffling bank robberies and the city’s strange infrastructure. This steampunk mystery blends cozy investigation, alternate history, and comic science fiction with a satirical edge.
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About the book
From the creators of the acclaimed audio drama podcast Victoriocity comes a cozy scifi mystery set in the chaotic metropolis of Even Greater London - unmissable for fans of Ben Aaronovitch's Rivers of London series and Terry Pratchett's Discworld.
EVEN GREATER LONDON, 1887: a vast, uninterrupted urban plane encompassing the entire lower half of England and, for complex reasons, only the upper third of the Isle of Wight... The immense Tower casts electricity across the sky itself, powering the mind-boggling mechanisms of the city below; the notorious engineer-army swarms through its very veins, building, demolishing, and rebuilding whatever they see fit; and - at the heart of it all - sits the country's first ever private detective agency.
Archibald Fleet and Clara Entwhistle hoped things would pick up quickly for their new enterprise. No one is taking them seriously, but their break will come soon. Definitely... Probably.
Meanwhile, police are baffled by a series of impossible bank robberies, their resources wholly absorbed by the case. Which means that when a woman witnesses a kidnapping, Fleet-Entwhistle Private Investigations is the only place she can turn for help. Luckily they're more than happy to oblige.
But what's the motive behind the kidnap? As Clara and Fleet investigate, they find more than they could ever have imagined...
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A soldier returns from captivity to a kingdom that would rather use him than welcome him home.
The Thirteenth Man
Sci-Fi · Galactic Empire · Military Sci-Fi · Space Opera
Our take
A soldier returns from captivity to a kingdom that would rather use him than welcome him home. When Commander Charlie Cass finds the Realm tangled in court intrigue and edging toward interstellar war, he must rely on tactical skill, stubborn resolve, and political instinct to survive. This military science fiction novel blends space opera, aristocratic conflict, and high-stakes strategy with a fast-moving sense of adventure.
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About the book
From the author of The Treasons Cycle, The Gods Within, and The Dead Among Us series comes a stand-alone science fiction novel for fans of David Weber, Pierce Brown, Lois McMaster Bujold, and more! Spanning the galaxy, The Thirteenth Man blends the best traditions of space opera and military sci-fi into a non-stop adventure that's as much Patrick O'Brien as it is John Scalzi.
When Commander Charlie Cass, the bastard son of the Duke de Maris, returns from five years in a squalid Syndonese POW camp, he finds that little has changed in the Realm. As always, the King and the nine Dukes are conspiring against each other, but now some of them are plotting with Charlie's old enemy. And as interstellar war looms, they certainly don't need Charlie Cass messing up their delicate plans.
Unfortunately for them, that's what he's best at.
With ingenuity, tacticial inovations, and just a little bit of luck, Cass might be able to not only save the Realm, but perhaps even change it for the better.
Which, of course, means he'll likely face the headsman's axe.
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Good for readers who want alien invasion sci-fi with military grit and survival stakes.
Banish the Stars
Sci-Fi · Alien Invasion · Galactic Empire
Our take
When alien starships appear and begin snatching people from Earth through space elevators, former soldier Ryan Pierce knows no rescue is coming. In Banish the Stars, he must build a team, identify the invaders, and face what they came for, with a 4.6-star rating from more than 20 Amazon reviewers. Good for readers who want alien invasion sci-fi with military grit and survival stakes.
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About the book
We have arrived. Descent is in progress.
Ryan Pierce traded military life for a peaceful existence in Napa Valley. Everything was fine until the starships appeared.
As aliens overtake the land and obscure the sun, Ryan quickly grasps that no one’s coming to rescue them. He can’t save the world on his own. Ryan must build a team to confront humanity’s greatest threat.
Who are the invaders, and what did they come for? As people are snatched from the Earth one space elevator at a time, those answers become apparent.
But is Ryan ready to hear them?
From the best-selling author of Ethos, The Event, Lost Contact, First Life, and many more, comes a brand-new epic series, The Formless.
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Good for readers who want space opera with magic, conspiracies, interstellar conflict, and reluctant alliances.
Starship’s Mage
Sci-Fi · Galactic Empire · Space Opera
Our take
Called “thoroughly engaging space opera” by Cat Rambo, Starship’s Mage follows Jump Mage Damien Montgomery and Captain David Rice as pirates and politics push them into a partnership across orbitals, prisons, and alien graveyards, with a 4.7-star rating from more than 800 Amazon reviewers. Good for readers who want space opera with magic, conspiracies, interstellar conflict, and reluctant alliances.
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About the book
Will magic save the galaxy... or tear it apart?
Damien Montgomery is as much a nobody as a Mage of the star-spanning Protectorate of Mars can be. Trained as a Jump Mage, one of the elite who teleport ships across interstellar space, he lacks the connections to find a ship that will take him.
Until pirates and politics strand Captain David Rice of the jump freighter Blue Jay in his home system. The two men's matching needs birth a choice and a partnership that will take them from high-end orbitals to prisons to alien graveyards in forgotten star systems.
And in the shadows of the Protectorate, Damien is faced with a simple question: who is he in the dark?
Starship's Mage is The Atlas Six meets Genesis: First Colony—combining Olivie Blake's magical conspiracies with Ken Lozito's vast interstellar conflict.
To celebrate the 10th anniversary of its release, Glynn Stewart and Faolan's Pen Publishing are releasing new revised editions of the first five books in this best-selling science fiction & fantasy adventure. The first Starship's Mage novel was initially released as a series of serialized Kindle books. In 2014, these episodes were combined and published as a single novel for the first time.
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Some signals carry more than information, pulling old loyalties back into the light.
No One Left Behind
Sci-Fi · Galactic Empire · Space Exploration
Our take
Some signals carry more than information, pulling old loyalties back into the light. No One Left Behind follows Edgar Bryce, a former soldier drawn out of isolation by a forbidden distress call from prisoners abandoned beyond the border. This military science fiction series centers duty, sacrifice, and found family, tracing one man’s resolve to honor promises in a fragile postwar galaxy.
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About the book
Edgar Bryce thought his war was over. Then he heard the signal.
Once a decorated soldier, Bryce now roams the stars as a freelance prospector, trading danger for solitude. The battles may be behind him, but peace has never come easy. He’s drifting until a strange signal pulls him off course.
A hidden transmission. A plea for help. A distress call from human prisoners long thought lost.
The authorities won’t act. Peace is too fragile. Diplomats would rather look away. But Bryce remembers what it means to wear the uniform and the unspoken vow that comes with it.
He’ll have to do the impossible: form a team, cross the border, and bring them home.
Because some promises don’t expire. And some missions… choose you.
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A strong match for readers who like military space opera about loyalty, conscience, and rebellion.
The Shattered Star
Sci-Fi · Galactic Empire · Military Sci-Fi
Our take
Kael Vallen has served the Starlit Covenant as a soldier, but the war makes him question its claims about the people he’s ordered to kill. Defying it could put him against his own brother. A strong match for readers who like military space opera about loyalty, conscience, and rebellion.
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About the book
A quest for peace, a bond of brotherhood, and a war that tests them both.
A thousand years under the rule of the Starlit Covenant has brought order and tranquility to the galaxy. Raised to believe in its promises, brothers Kael and Auctor Vallen join the Starlight Corps, determined to uphold the Covenant's values and bring light to the stars.
But the war they find themselves in is not the one they were promised.
Thrown into a brutal conflict far from home, Kael is forced to confront the harsh realities that test his loyalty to the Covenant and the ideals he once held dear. Auctor, on the other hand, finds certainty and strength in the midst of chaos, leading him to question his brother's doubts and fears.
As they fight for their beliefs, the bond between Kael and Auctor is put to the ultimate test.
Amidst the chaos and violence, Captain Junova struggles with the weight of command, making impossible decisions that cost lives. And in the midst of it all, soldier Pike grapples with his own inner demons, risking trust and connection in a world that has taught him the painful consequences of both.
With the reality of war closing in, loyalties are tested and bonds are strained. Kael must decide what kind of man he is willing to become, while Captain Junova must choose between obedience and conscience.
The Shattered Star is an emotionally-charged military science fiction novel that explores the complexities of loyalty, conscience, and the cost of obedience in the face of war.
For fans of The Forever War, The Expanse, and character-driven space operas, this book combines action-packed military sci-fi with themes of philosophy, betrayal, and the essence of humanity.
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