Sci-fi Book Blast
March 15 - 16, 2024

Load up your eReader for FREE, no strings attached, with mind-blowing sci-fi.
Hurry, this sale lasts two days only.

PLEASE CHECK ALL PRICES BEFORE YOU ONE-CLICK! We've done our best to make sure all the books are free, but accidents happen, and our computer overlords occasionally make mistakes.


Click on the categories below to jump to your favorite sci-fi subgenras, or scroll down the page to see all the books.
Adventure, Alien Invasion, Colonization, Crime & Mystery, Cyberpunk, Dystopian, First Contact, Galactic Empire, Humor, Military, Post-Apocalyptic, Short Story Anthologies, Space Opera, Time Travel


Archangel Down by: C. Gockel
Commander Noa Sato doesn't believe in aliens. She's wrong.
Keywords: Alien Invasion, Space Colonization, Artificial Intelligence
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Any Job Will Do by: John Wilker
Jackson Caruso has only known life under the Grand Human Empire. The war ended when he was a kid. The Alliance lost, taking his parents with it. They left him a ship and some droids, and that was about it. Now he takes the work he can find, keeping the reactor topped up, and food in the pantry. Sometimes you can’t be choosy, sometimes you should be.
Keywords: Galactic Empire, space exploration, Artificial Intelligence, Adventure
Click to download Any Job Will Do FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Bypass Gemini by: Joseph R. Lallo
Lex is a disgraced racer making ends meet as a delivery boy. A mysterious package puts him at odds with mobsters, mad engineers, and megacorps. Now he'll have to move fast just to stay alive.
Keywords: ai, mad science, adventure, spaceships, film noir
Click to download Bypass Gemini FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Secondhand Spaceman by: Rachel Aukes
Frank Woods never expected to become a space repo man. But when he's thrust into his deadbeat dad's cosmic career, Frank's in for a wild ride. Armed with nothing but a beaten-up spaceship and his mediocre wits, he embarks on bite-sized adventures across the galaxy.
Keywords: artificial intelligence, funny science fiction, space adventure, lighthearted, intergalactic astronaut, alien abduction, blue collar spaceman
Click to download Secondhand Spaceman FREE at Amazon

Max and the Multiverse by: Zachry Wheeler
Max and the Multiverse is an award-winning sci-fi comedy about a nerdy teen who tumbles through the multiverse. This is the first book of a complete saga that includes three novels, five short stories, and a spin-off series with five additional titles.
Keywords: Humor, Comedy, Satire, Parody, Multiverse
Click to download Max and the Multiverse FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Guardian Outcast by: G J Ogden
When Hudson’s attempt to turn his life around by joining the Relic Guardian Force goes horribly wrong, he finds himself on the inside of a corrupt organization secretly controlling the underground world of salvaged alien technology… An enthralling adventure perfect for fans of Firefly and Indiana Jones!
Keywords: artificial intelligence, alien technology, space exploration, mystery, relic hunter, space opera
Click to download Guardian Outcast FREE at Amazon

Smuggler's Valor by: T.D. Wilson
Smuggling precious cargo to a remote colony was supposed to be easy. I was dead wrong. Smuggling is a dangerous business and Reese Daniels has the score of a lifetime within his grasp; however, getting shot down on one of Uranus' moons wasn't in his plan. Stranded and on the run in the middle of an alien invasion, Reese must work with a group of Marine cadets to escape a grisly fate.
Keywords: Sci-fi Action Adventure, Alien Invasion, Science Fiction Military Space Marines
Click to download Smuggler's Valor FREE at Amazon

Silent Order: Iron Hand by: Jonathan Moeller
To the galaxy at large, Jack March is a privateer of the interstellar Kingdom of Calaskar and a former Iron Hand commando of the malevolent Final Consciousness. In truth, he is an alpha operative of the Silent Order, the most efficient and feared intelligence organization in human space. When there is a crisis, Jack March is the man to call.
Keywords: space opera, space adventure, cyborgs, espionage
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Eclipsing the Aurora by: Peter J. Foote
Not every loser gets a second chance, but Nigel Meredith did. Now he must navigate missing memories, a family he never knew he had, all while an alien menace targets Earth.
Keywords: Space Adventure, Found Family, Alien Invasion, Galactic Empires
Click to download Eclipsing the Aurora FREE at Amazon

The Auriga Project by: M.G. Herron
When a mistake with a translocator sends archaeologist Eliana Fisk across the solar system, she’s imprisoned by an alien race. Can she find her way home before her captors cause her harm — or worse? A gripping science fiction saga that kicks off a series!
Keywords: Portal fiction, high-tech adventure, ancient Mayans
Click to download The Auriga Project FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Last Everything by: Frank Kennedy
One night changes 2 universes in this action-packed saga. The clock runs out on Jamie Sheridan, who is a genetically-engineered time bomb. In 8 hours, he will become a god, a monster, or he will die. He and his friends fight to survive against all hope, their desperate quest taking them to a universe where a galactic empire stands on the brink.
Keywords: genetic engineering, hybrid, galactic empire, conspiracy, multiple universes, ticking clock thriller, action adventure,
Click to download The Last Everything FREE at Amazon

Mind Secrets by: Jane Killick
Teenagers with mind powers fight for the right to survive in the thrilling first novel of the Perceivers series. Waking up without his memories and hunted by Agent Cooper, Michael finds sanctuary with a group of perceivers: telepaths who sense the thoughts and emotions of others. Drawn into their battle to stay free of the cure which threatens to strip them of their powers, he searches for the person who stole his past.
Keywords: Telepathy, teenagers, coming of age, British
Click to download Mind Secrets FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Starship Ass: Of Donkeys, Gods, and Space Pirates by: J. R. Frontera (and Ethan Freckleton)
Symbiont Harry—rejected by his tribe, exiled from home, and braying at the stars—is imprisoned in the form of a donkey. Trapped on an interstellar livestock vessel, Harry dreams of being loved, or at least of having a decent conversation. Space pirates capture the ship, hoping to score... but what to do with a hold full of livestock? And what's with the wisecracking donkey? When a galactic animal contest promises a fortune, the talking donkey starts to look like a potential winner—if only he can lay off the pizza.
Keywords: Comedy, Adventure, Space Opera
Click to download Starship Ass: Of Donkeys, Gods, and Space Pirates FREE at Amazon

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Alien Invasion

The Contingency by: G J Ogden
It’s been decades since the Earth Fleet defeated an alien race known as the Hedalt, but from the depths of space, Captain Taylor Ray makes a discovery that proves their battle is far from over… The Contingency takes the alien invasion sci-fi genre and turns it on its head. Buckle up for action, mystery, adventure, and a twist that you won't see coming…
Keywords: alien invasion, military, space opera, space fleet, alien contact
Click to download The Contingency FREE at Amazon

Thrive: A Post-Apocalyptic Alien Survival Series (The Pandora Experiment Book 1) by: Jonathan Yanez
The citizens enjoy the peace of their perfectly planned city. But when she notices cracks in the facade, Jordan’s waking dreams turn to nightmares.
Keywords: Post Apocalyptic, Alien Invasion, Science Fiction, Survival, Genetic Engineering
Click to download Thrive: A Post-Apocalyptic Alien Survival Series (The Pandora Experiment Book 1) FREE at Amazon

The Eighth Excalibur by: Luke Mitchell
King Arthur meets Mass Effect in this fresh new space opera saga! Nate Arturi was nobody's first choice for a hero. But when a homeless wizard tricks him into taking up a foul-mouthed Excalibur to fend off the Troglodan apocalypse, he'd better learn quick.
Keywords: Arthurian Legend, Mythology, Artificial Intelligence, Superheroes, Space Opera
Click to download The Eighth Excalibur FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Last Atlantis: Blink, Book 1 by: Brandon Ellis
Agent Andrew Ethridge had always known the stakes were high. Yet, nothing prepared him for the truth. Jumping through parallel universes left Andrew with more questions than answers. As a member of the Cross Dimensional Corps at Area 51, he faces the daunting task of understanding why aliens were collapsing dimensions. It’s a race against time to save not just Earth, but the very fabric of the universe.
Keywords: Action, Alien Invasion, Alternative History, First Contact
Click to download Last Atlantis: Blink, Book 1 FREE at Amazon

Indomitable: An Epic Space Opera/Alien Invasion/Time Travel Adventure (Invasion: Earth Saga Book 2) by: Sean Robins
Indomitable, the second book in Invasion: Earth Saga, boasts the same high-octane, non-stop action sequences as the first, and combined with its shocking twists and unforgettable characters, it’s a must-read for all space opera/military sci-fi fans.
Keywords: space opera, military sci-fi
Click to download Indomitable: An Epic Space Opera/Alien Invasion/Time Travel Adventure (Invasion: Earth Saga Book 2) FREE at Amazon

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Day 115 on an Alien World by: Jeannette Bedard
A barren world. A crashed colony ship. A saboteur at work. Fifty colonists set out to make a new world their home. Now, a saboteur threatens everything. Someone must survive to call for help.
Keywords: Colonization, Scifi Thriller, Alien World
Click to download Day 115 on an Alien World FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Star We Call Home by: Cidney Swanson
Disaster threatens the Mars colony, and a seventeen-year-old pilot is Mars’s last hope. But when Jessamyn's crew undertakes a supply raid to ex-ally Earth, her brother is captured and accused of treason. A spellbinding saga of family, sacrifice, and the indomitable spirit of a pilot caught between duty and love.
Keywords: Coming of age, colonization, consciousness transfer, adventure sci-fi, Mars colony, young adult sci-fi, golden-age sci-fi
Click to download The Star We Call Home FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

So Dark the Sky by: Cidney Swanson
Penny Wanjiru, second grade teacher and space enthusiast, no longer dreams of becoming a Mars Colony astronaut. But when fate intervenes, offering her a chance to travel to Mars, she must choose between staying on Earth with her beloved, ailing grandmother or risking everything to journey to the red planet.
Keywords: Coming of age, colonization, adventure sci-fi, Mars colony, new adult sci-fi, golden-age sci-fi, clean and wholesome
Click to download So Dark the Sky FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

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Crime & Mystery

Dhata Mays by: Greg Dragon
When detective Dhata Mays is called in to investigate a homicide, what he uncovers threatens the serenity of this futuristic society. The gruesome murder means only one thing: someone is ready to incite another war. Now, it's up to Dhata to ensure that the truth stays hidden--to protect both sides, but can he be unbiased in a black and white world that forces him to take sides?
Keywords: crime, cyborg, detective, futuristic, dystopian, noir, betrayal
Click to download Dhata Mays FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Double Edged (Bulari Saga 1) by: Jessie Kwak
Willem Jaantzen has tried to leave his notorious past behind, though Bulari’s society elite will never let him forget it. But when a mysterious discovery threatens his family, his friends, and the very future of humanity, his past might be the only thing to save them all. Perfect for fans of the Expanse, Firefly, and the Godfather.
Keywords: Sci-fi crime thriller, far future, first contact, lgbtq+
Click to download Double Edged (Bulari Saga 1) FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Artemis City Shuffle (Nanshe Chronicles Prequel) by: Jessie Kwak
Lasadi’s on one last job to earn her freedom: stealing data for a mob boss from one of his rivals. Raj is testing his final ounce of luck with a seemingly simple job: guarding an elderly client during an innocent shopping spree. Everything’s going swimmingly, until a series of near misses and close calls spins their destinies into a collision course.
Keywords: Heist, far future, sci-fi crime thriller
Click to download Artemis City Shuffle (Nanshe Chronicles Prequel) FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

All the Whys of Delilah's Demise by: Neve Maslakovic
When Delilah, the star of New Seattle, dies under mysterious circumstances, suspicion falls on her assistant, Scottie. With time running out, Scottie must prove her innocence or risk banishment from the city. But what starts out as a murder investigation soon turns into a deadly game of cat-and-mouse with a ruthless adversary determined to be number one.
Keywords: Mystery, Thriller, AI, Near Future, Female Protagonist
Click to download All the Whys of Delilah's Demise FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Killswitch by: Warwick Eden
A Harry-Dresden-meets-Murderbot cyborg, his uploaded dog, and their AI-run colonial outpost in a galaxy far, far away. What could possibly go wrong??
Keywords: Mystery, Cyborg, Artificial intelligence
Click to download Killswitch FREE at Amazon

Mind Machines by: Dima Zales
With billions in the bank and my own venture capital firm, I’m living the American dream. My only problem? A car accident that leaves my mother with memory problems. Brainocytes, a new technology that can transform our brains, could be the answer to all of my problems—but I’m not the only one who sees its potential. Plunged into a criminal underworld darker than anything I could’ve imagined, my life-saving technology might be the death of me. My name is Mike Cohen, and this is how I became more than human.
Keywords: crime, futuristic, telepathy, thriller, androids, mystery, artificial intelligence
Click to download Mind Machines FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

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Neon Eclipse by: Greg Dragon
One of Case City's most skilled assassins, Jackson Cole is a wanted man. After annihilating his latest target, he quickly learns the prominent man's identity. Now, a perilous enemy seeks revenge, and rival guilds look to take advantage of his vulnerability.
Keywords: cyberpunk, thriller, futuristic, mafia, organized crime, dystopian
Click to download Neon Eclipse FREE at Amazon

A Cruel Cyber Summer Night by: Austin Dragon
Metropolis wasn't a bad place, but it wasn't a good one either. In the distance, I could see the light show of red and blue flashing sirens. I was in one of three professions that lived in the mayhem: police, hospitals, and private detectives like me. I was headed to see the client and as long as I avoided any laser-gun shootouts, I’d consider the night a good one.
Keywords: cyberpunk thriller, short science fiction, cyberpunk dystopia, sci-fi detective private investigator, new cyberpunk
Click to download A Cruel Cyber Summer Night FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Traitor by: Krista D. Ball
There is what is right, and what is necessary.
Keywords: cyberpunk, military science fiction, galactic empire
Click to download Traitor FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Blind Spot: A Cyberpunk Thriller by: Michael Robertson
The Blind Spot: Neon Horizon book one is a fast-paced cyberpunk thriller. If you like dazzling neon dystopian landscapes, where entertainment, credits, and the latest street drugs are all worth more than human life, then you’ll love this hard-hitting grimy glimpse into the hyper-cities of the future.
Keywords: cyberpunk, cyborg, dystopian, megacities, far future,
Click to download The Blind Spot: A Cyberpunk Thriller FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

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Oasis (The Last Humans Book 1) by: Dima Zales
My name is Theo, and I'm a resident of Oasis, the last habitable area on Earth. It's meant to be a paradise, a place where we are all content. Vulgarity, violence, insanity, and other ills are but a distant memory, and even death no longer plagues us. I was once content too, but now I'm different. Now I hear a voice in my head, and she tells me things no imaginary friend should know. Her name is Phoe, and she is my delusion.
Keywords: Dystopian, young adult, adventure
Click to download Oasis (The Last Humans Book 1) FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Underground by: Chris Ward
In a bleak near-future Britain, a group of misfit teens go on the run from the government's killing machines.
Keywords: dystopian, British SF, Genetic Engineering, Young Adult SF
Click to download Underground FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

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First Contact

Trixie & Me by: Peter Cawdron
Trixie & Me is the second in a series of novellas exploring alternatives to the Rare Earth Hypothesis in the search for extraterrestrial intelligence. Trixie and Berry are trapped on an alien spaceship and desperate to escape.
Keywords: First Contact
Click to download Trixie & Me FREE at Amazon, Apple, Barnes & Noble, Kobo

Traveler in the Dark by: Deirde Gould
Sixteen hundred years ago, they fled Earth. Now their long journey may finally be at an end. None of them have ever walked on soil, felt rain, or breathed unrecycled air. Their resources nearly spent, they sent a last exploratory mission to a new planet. It's ideal... but they are not alone.
Keywords: First Contact, Space Exploration, Dystopian, Hard Science Fiction
Click to download Traveler in the Dark FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

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Galactic Empire

Five Light-Years to the Firesnake by: Rayner Ye
Space Travel, Time Travel, or River and Rain Travel? There are many ways to smash interstellar slavery, but there's only one saviour.
Keywords: Galactic Empire, Science Fiction, Metaphysical Science Fiction, Mysticism, Time Travel, Cyborgs, Crime.
Click to download Five Light-Years to the Firesnake FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Blood Service: A Sci-Fi Action Adventure by: Allen Ivers
Wrongly convicted over a decade ago, Aaron Havenes had resigned himself to laboring away in the Empire's far flung colonies. But when the local garrison is recalled and exposes the colony to attack, Aaron is offered a chance at redemption: serve a tour of service and receive a full pardon. It's all too good to be true, and Aaron soon realizes that the monsters beyond the walls are not the greatest threat to his survival.
Keywords: First Contact, Hive Mind Aliens, Evil Galactic Empire, Augmented Super Soldiers, Colonial Militia, Frontier War
Click to download The Blood Service: A Sci-Fi Action Adventure FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Trans Galactic Insurance by: Andrew Moriarty
The Galactic Empire disappeared a lifetime ago. Jake Stewart doesn't care, he needs to earn a living.
Keywords: galactic empire, lite space opera, space opera mystery, free trader, traveller rpg
Click to download Trans Galactic Insurance FREE at Amazon

Galactic Empires by: Patty Jansen
Seven space opera novels from established science fiction authors.
Keywords: military SF, space exploration, first contact, alien societies
Click to download Galactic Empires FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Last Nehisi by: Warwick Eden
This is the Dune-meets-The-Expanse epic sci-fi you've been waiting for! Read The Last Nehisi, Warwick Eden’s enthralling space opera of warring races, alien worlds, moral dilemmas and imperfect heroes.
Keywords: Space opera, adventure, galactic battles
Click to download The Last Nehisi FREE at Amazon

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The Vacuum of Space by: Julia Huni
When her cleaning bot finds a dead body, space station maintenance technician Triana Moore must work with a charming upper-level investigator to find the killer.
Keywords: Humorous sci fi mystery, futuristic cozy mystery, galactic empire spoof
Click to download The Vacuum of Space FREE at Amazon

Luna City Limited by: Julia Huni
Katie Li sells silly novelties at Luna City, LTD, and the highlight of her day is upselling a case of zero gravity whoopie cushions. When secret agent Nick "The Phoenix" Beckett drops into her life, Katie soon finds herself in over her head.
Keywords: Humorous, spies in space, lunar city
Click to download Luna City Limited FREE at Amazon

Nexus Talks to Aliens by: Ginger Booth
Join upbeat civilians on a sci-fi adventure of space trains, flying life support suits, and enigmatic aliens!
Keywords: Aliens, Space Opera, Artificial Intelligence, Robots, Adventure
Click to download Nexus Talks to Aliens FREE at Amazon

Thrive Earth Return by: Ginger Booth
Sass returns to Earth after a century, and finds it far from dead. Can the reborn Colony Corps make friends in the home system? Or new enemies too big to handle?
Keywords: Artificial Intelligence, Dystopian, Space Opera, Colonization, Cyborgs
Click to download Thrive Earth Return FREE at Amazon

Galaxy Cruise: The Maiden Voyage by: Marcus Alexander Hart
When a hapless human karaoke DJ is suddenly promoted to captain of the galaxy’s most luxurious cruise ship, the fate of all mankind rests on his success. Can this bumbling everyman successfully wrangle a ragtag crew of alien misfits through their maiden voyage? Spoiler alert: He can not.
Keywords: sci-fi comedy, humor, space exploration, clean alien romance, space leisure, lost in space, happy ending, hopepunk
Click to download Galaxy Cruise: The Maiden Voyage FREE at Amazon

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Fire Ant by: Jonathan Brazee
Commercial scout pilot Floribeth Salinas O’Shea Dalisay is surveying a new system when she's attacked by an unknown alien force. Barely escaping with her life, she's accused of making up the story to cover getting her ship destroyed. How can a disgraced pilot convince humanity that there's a deadly threat on the horizon?
Keywords: space fleet, military, fighter pilot, alien invasion, first contact
Click to download Fire Ant FREE at Amazon, Apple, Barnes & Noble, Kobo

Infiltration (Mindspace Book 1) by: A.K. DuBoff
Captain Kira Elsar, a telepath in the Tararian Guard, goes undercover to gather information about illegal nanotech research. She is soon torn between her home planet and her loyalties to the military as she struggles to prevent a stellar civil war. This military space opera is perfect for fans of sci-fi with superhuman abilities, political intrigue, spec ops military action, and devious aliens.
Keywords: Space Opera, Telepathy, Special Ops, Military Science Fiction, Political Intrigue, Alien Nanotech, Genetic Engineering
Click to download Infiltration (Mindspace Book 1) FREE at Amazon

The Ember War by: Richard Fox
A dire warning. An impending alien invasion. Only one chance for survival. In the near future, an alien probe arrives on Earth with a pivotal mission—determine if humanity has what it takes to survive the impending invasion by a merciless armada. The probe discovers Marc Ibarra, a young inventor, who holds the key to a daring gambit that could save a fraction of Earth's population. Humanity's only chance lies with Ibarra's ability to keep a terrible secret and engineer the planet down the narrow path to survival. Earth will need a fleet. One with a hidden purpose. One strong enough to fight a battle against annihilation. The Ember War is the first installment in an epic military sci-fi series. If you like A Hymn Before Battle by John Ringo and The Last Starship by Vaughn Heppner, then you'll love this explosive adventure with constant thrills and high stakes from cover to cover.
Keywords: military science fiction, space opera, space fleet, space marine, action and adventure, men's fiction
Click to download The Ember War FREE at Amazon

Escape Velocity by: Jonathan Paul Isaacs
A remote colony gone silent. A rescue team sent to help. But who will save the saviors?
Keywords: Military sci-fi, first contact, space marines
Click to download Escape Velocity FREE at Amazon

The Legion and the Lioness by: Robert D. Armstrong
A decorated Naval fighter pilot is selected to colonize a new world.
Keywords: AI, futuristic, space opera
Click to download The Legion and the Lioness FREE at Amazon

Ambush in the Sargon Straits by: L.L. Richman
A consulate caught in the crossfire. An elite sniper their only hope. When a special forces team is given bad intel, it takes skill — and extraordinary sacrifice — to bring the diplomats home alive.
Keywords: special forces, colonization, military science fiction, hard sci-fi
Click to download Ambush in the Sargon Straits FREE at Amazon, Apple, Barnes & Noble, Kobo

Glory by: Craig Martelle & Ira Heinihen
One last chance for Glory. One last hope for humanity. A ship pulled out of mothballs by the original crew, sent to fight a war humanity was losing.
Keywords: Galactic Colonization, Fleet Action, Dreadnought, Space Marines, Military Sci-Fi
Click to download Glory FREE at Amazon

The Bad Company by: Craig Martelle
A private conflict resolution enterprise... comes the Bad Company. Led by the indomitable Terry Henry Walton, a former Marine, long-lived thanks to the nanocytes coursing through his body. He's known war for a hundred and fifty years, and he's brought a hand-picked group of warriors to space with him.
Keywords: Military Sci-Fi, Space Opera, Genetic Engineering, Galactic Colonization
Click to download The Bad Company FREE at Amazon

Warship by: Joshua Dalzelle
An relentless alien foe against an implacable starship captain. Can an obsolete warship stop a powerful alien invader?
Keywords: Space fleet, first contact, military sci-fi
Click to download Warship FREE at Amazon

Legacy Marines by: Jonathan P. Brazee
When twins Esther and Noah Lysander learn that their father and mother have been assassinated, they decide to enlist in the Corps, but for different reasons. One to carry on the family legacy, one to earn his father's pride, even if it is too late. From under their father’s heavy shadow, the two have to discover his or her personal path in the Corps, even when that seems to pull them apart from each other.
Keywords: military, nebula finalist, dragon finalist, usa today bestseller, galactic federation
Click to download Legacy Marines FREE at Amazon, Apple, Barnes & Noble, Kobo

Cyborg Assassin 1 by: Rayner Ye
A schoolgirl turned Space Marine, bribed to fight a war on a red-sun world. A slum boy taken under the wing of a terrorist. Both must betray their protectors to rescue the victims of war.
Keywords: Military Science Fiction, Space Opera, Military, Science Fiction, Galactic Empire, Space Opera, Cyborgs, War
Click to download Cyborg Assassin 1 FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

The Empress Capsule by: R.K. Thorne
In the middle of an op gone wrong, cyborg mercenary Kael Sidassian gets stuck with a mission he can't refuse: carry a capsule to safety, the contents of which could bring the galaxy down on his head. But he’ll get more than he bargained for when he hitches a ride with a brilliant young commander, her elite crew, and the shadowy organization they work for. As a new threat rises, they may have to set it all aside—if they want to survive.
Keywords: Space Opera, Space Marine, Cyborgs, Diverse Cast, Genetic Engineering, Cybernetics, Military, Romantic, Enemies to lovers,
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Transient by: Zachry Wheeler
Transient is an award-winning tech noir novel about a dark and distant future. It is the first book of the Immortal Wake series, a complete trilogy with an additional prequel novella.
Keywords: Noir, Technothriller, Vampires, Spies, Espionage
Click to download Transient FREE at Amazon, Apple, Barnes & Noble, Kobo, GooglePlay

Grip of Fear by: Sam J Fires
In the aftermath of a life-altering gunshot, retired cop Patrick Dunn faces a test of his inner strength as darkness descends on Oregon, USA. When a chaotic EMP event plunges the country into turmoil he crosses paths with Holly Winters, a psychiatric patient escaping her past. Together, they navigate a treacherous landscape, their fates intertwined as they seek safety in an uncertain future.
Keywords: EMP, Post-Apocalyptic, Survival Thriller
Click to download Grip of Fear FREE at Amazon

Red Gambit by: Luke Mitchell
Aliens have stolen something from Jarek — and he’s determined to make them pay. But when his quest for vengeance runs him straight up against an alien stronghold and a blonde arcanist who throws around grown men like telekinetic frisbees, he soon learns Earth's got bigger problems headed its way. And if he and his fiery new friend don't step up, they may just be looking at Apocalypse Number Two...
Keywords: Alien Invasion, Artificial Intelligence, Space Vampires, Power Armor, Psionic Powers
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Paradise Factory by: Jim Keen
She's a policewoman with a past. In a future ruled by AI, one bad decision could get her killed... or worse. If you like the post-apocalyptic technothrillers of A.G. Riddle, Hugh Howey and William Gibson, you’ll love the thrilling Alice Yu series!
Keywords: sci fi, post apocalyptic, technothriller, cyberpunk, action, adventure, crime, mystery, thriller, dystopian, noir, detective, peripheral,
Click to download Paradise Factory FREE at Amazon

The Alpha Plague: A Post-Apocalyptic Thriller by: Michael Robertson
Do you have a plan for the apocalypse? Rhys doesn't. But as he watches chaos spill from the Alpha tower, he knows one thing for sure. He must get to his son before the virus does.
Keywords: post-apocalyptic, zombies, end of the world, virus, horror
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Before the Cure by: Deirdre Gould
The early symptoms were so mild that almost no one noticed them. A scratchy throat. A feeling of lethargy that you just can't shake. But then the slurring started. And an intense irritability. Finally, an irresistible urge to bite and consume accompanying an uncontrollable rage.
Keywords: Pandemic, Post-Apocalyptic, Quarantine, Biohorror
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Short Story Anthologies

Star Rebels: Stories of Space Exploration, Alien Races, and Adventure by: Multiple Authors
Meet eleven protagonists battling to save themselves and the ones they love. Human, cyborg, clone, or alien, they'll find themselves pitted against intergalactic crime bosses, interstellar mercenaries, a quantum-wave-riding collective mind, and the universe itself. Along the way, there’s plenty of action, adventure, humor, and even some romance.
Keywords: aliens, ai, clones, cyborgs
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Space Opera

Savage Stars by: Multiple Authors
The universe can be savage, but these heroes won't go down without a fight. Seven full-length novels by bestselling authors that explore the far reaches of the universe, the limits of the human mind, and the divide between man and machine. Aliens, AI, and post-apocalyptic adventure—you'll find them all among the Savage Stars.
Keywords: AI, Artificial Intelligence, Cyborgs, Galactic Empire, Space Colonization
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Broken Ascension by: Dave Walsh
The war is over, and there are no winners. Join Drake and the crew of the Trystero while they traverse the demilitarized zone between alien and human space, scraping by salvaging wrecks to get by. When they uncover a derelict alien ship, they’re thrust into the center of a deadly conspiracy that threatens the fragile peace in the galaxy.
Keywords: space opera, alien baby, found family, metaphysical science fiction, alien conflict
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Cydonia Rising by: Dave Walsh
After her diabolical brother kills their father to seize control of the Andlios Republic, Katrijn must evade assassins, form intergalactic alliances, and ultimately find the courage to face her destiny.
Keywords: space opera, found family, female lead, LGBTQ, metaphysical science fiction
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Outlaw Rising by: Kate Sheeran Swed
A notorious outlaw enlists his niece's assistance in a major heist, and she agrees to help him out -- just this once. But when it turns out she's meant to steal data from the Galactic Fleet, she's not sure she'll be allowed to walk away...
Keywords: Crime, heist, misfit crew, found family, adventure, romantic subplot
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Venatoris by: G. S. Jennsen
When Alexis Solovy—space explorer, freelance scout, recalcitrant wanderer—lands the contract of a lifetime, the race is on to claim the prize. Now she must not only outrun but outsmart her rivals to uncover the secrets of an ancient, mysterious pulsar. For deep in the void, far beyond the reach of civilization, wealth and renown matter little absent the ultimate reward: survival.
Keywords: space opera, scifi adventure, space exploration, space travel, strong female protagonist
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Starship Freedom by: Daniel Arenson
The starship Freedom is just a museum ship. Until the aliens attack! Battlestar Galactica meets Starship Troopers in this sci-fi adventure from Daniel Arenson, the USA Today bestselling author of Earthrise.
Keywords: alien invasion, military sci-fi, space fleet
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Ad Astra by: Kevin McLaughlin
Dan Wynn wanted to explore space more than life itself, but a tragic accident left him too injured for NASA’s space program. Second chances don’t come along every day, so when an old friend offered him one, he grabbed on with both hands. Little did Dan know that simple offer was anything but, and would lead him to the stars far beyond our own.
Keywords: adventure, first contact, exploration, series
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Shadows of Empire (Cadicle Book 1) by: A.K. DuBoff
High Dynasty heir Wil Sietinen is torn between his duties to the military and Taran Empire when he learns he’s at the center of a galactic conspiracy. He holds the key to victory in a war being secretly waged inside a dimensional rift, but it may come at the ultimate price. A sweeping sci-fi epic for fans of feuding galactic empires, virtuous heroes, and complex, high-stakes plots!
Keywords: Epic Space Opera, Galactic Empire, Political Intrigue, Chosen One, Telekinesis, Space War
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Lightwave: Clocker by: AM Scott
Saree is the only human Clocker, able to tune the space fold clocks used to travel between star systems. But once her secret is out, she’ll have to run for her life in this captivating sci-fi series starter!
Keywords: Action/Adventure, Mystery, Artificial Intelligence, Classic-Style SF, Found Family
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Quinn of Cygnus: Lift Off by: AM Scott
Desperate to escape her boring life, Quinn eagerly accepts the full-ride scholarship to Adzari Net Academy. But the school is under new ownership, and danger is everywhere. But Quinn is a survivor, and she's determined to win!
Keywords: Action/Adventure, coming-of-age, classic-style SF, pirates/mercenaries, organized crime, dark
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The Adventures of Wil Calder by: John Wilker
Wil and the crew of the Ghost aren’t even remotely qualified to save the galaxy from intergalactic war. Sadly no one checks qualifications these days. If you love Farscape or Guardians of the Galaxy, you’ll love the crew of the Ghost.
Keywords: space western, alien contact, space battles, scifi adventure
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One's Aspect to the Sun by: Sherry D. Ramsey
Captain Luta Paixon of the far trader Tane Ikai needs to know why she looks like a woman in her thirties–even though she’s actually eighty-four. The explanation might lie with her geneticist mother, who disappeared over sixty years ago, but even if her mother is still alive, it’s proving to be no small task to track her down in the vast, wormhole-ridden expanse of Nearspace. With the ruthless PrimeCorp bent on obtaining Luta’s DNA at any cost, her ninety-year-old husband asking for one last favor, and her estranged daughter locking horns with her at every turn, Luta’s search for answers will take her to the furthest reaches of space–and deep inside her own heart.
Keywords: Space Opera, Genetic Engineering, Artificial Intelligence, Found Family
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Vengeance Lost: Ardent Redux Saga: Episode 1 (A Space Opera Adventure) by: J. L. Stowers
Sent to aid a dreadnaught under siege, Dani Devereaux and the crew of Alaska's Vengeance find themselves caught in a trap. Narrowly escaping, she returns home to find victory parades turned into lines of questioning reporters all wanting to learn the details of her failure. But endings can create new beginnings, and when Dani hits rock bottom, she finds a way to regain her pride—and though not her honor, at least she'll have her vengeance.
Keywords: space opera, space adventure, space exploration, space travel, galactic war, aliens, space pirates, evil empire, space battles
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Emergence - The Emiliana Chronicles by: Jacki Rawlinson
Emily learns that she is The Chosen One. Prophecy dictates the safety of the Hyperion Expanse is in her hands. Follow her journey of discovery as she gathers a crew and learns to harness the powers that emerge from within.
Keywords: Artificial Intelligence, Starship, Interstellar war, Space adventure
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Arch Allies by: Audrey Sharpe
For smuggler Natasha Orlov, stumbling onto a buried starship is her shot at an interstellar future, until a muscled mercenary stakes a claim. With the Feds sniffing around, her only option is trusting the one person guaranteed to stab her in the back. The universe has a wicked sense of humor.
Keywords: finding a starship, ftl, futuristic, space adventure, space mercenary, space smuggler, strong female mc
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The Dark of Light by: Audrey Sharpe
For Aurora Hawke, protecting the secret of her half-human heritage has been a lifelong challenge. Taking command of her own starship and the best crew in the quadrant has been her dream. Failing at both is her nightmare, but the survival of a planet may depend on it.
Keywords: alien starship, artificial intelligence, strong female mc, space battle, interstellar fleet
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Eventide by: Peter J Aldin
A Space Marine lies murdered. Members of an alien race stand accused. And solving the crime could get this corporate cop killed.
Keywords: First Contact, Frontier Situation, Scifi Crime, Colonization
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Exclusion Zone by: Peter J Aldin
When she becomes the lone survivor of a space pirate attack, an inexperienced Peacekeeper is forced to take refuge on the most dangerous planet in human-held space.
Keywords: Space colony, space pirates, fight for survival, space marine
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Earth Warden: An Epic Sci-Fi Adventure by: Tyler Aston
Lord Kreon, Warden of the First Circle, has a problem. He’s been forced to kill another apprentice, and he’s rapidly running out of candidates. In fact, there is precisely one left… on the ancient, forbidden homeworld known as Earth.
Keywords: Intergalactic War, Space Battles, Assassins, Psychic Powers, Robots
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Traitor's Code by: Jane Killick
When a dying fugitive entrusts Cassy with a forbidden code, she must protect a secret which promises to save humanity – and threatens to get her killed. Pursued by the head of the security service, she returns to her home planet where her past and its connection to a dead king await her. A page-turning space adventure, Traitor’s Code mixes murder and intrigue with the heartache of impossible love in the first, unmissable instalment of the Freelancer trilogy.
Keywords: Space opera, science fiction mystery, female protagonist, royal romance
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Forge of Empire by: P R Adams
The human Kedraalian Republic leads a combined fleet of alien species in an effort to prevent an old power from returning to its warlike ways, but the military campaign distracts many from other threats that could ultimately prove far deadlier. Action-packed military science fiction and space opera combine with espionage and political intrigue to propel this sprawling tale forward. Fans of Babylon 5, Game of Thrones, and The Expanse should find plenty here to interest them.
Keywords: Artificial Intelligence, Space Marines, Robots, Starships
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First Shadow: A Military Space Opera Tale by: P R Adams
After establishing the Kedraalian Republic, humanity's dream comes apart in a short civil war that creates five separate star nations. When an accident sends the search and rescue ship Pandora into the demilitarized zone separating the Republic from the brutal Azoren Federation, a series of events pushes the two powers closer to war. This collection of three books begins the twisty, suspenseful War in Shadow military space opera tale.
Keywords: Space Opera, Space Marines, Espionage, Military Sci-Fi
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Lethal Cargo by: Felix R. Savage
Hardened space pirates try to kidnap a young girl... ...but a hero materializes from the stars and ruins their plan. His only mistake is letting them live.
Keywords: Space opera, shapeshifters, AI, galactic empire
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Stopover at the Backworlds' Edge by: M. Pax
Craze is carving out a new life on a dusty moon without promise or prospects, but he won’t give up on revenge against his father. He’s gnawing on visions of making his father squirm when the interstellar portal opens, spitting out a ship that should no longer exist. It’s a battleship spoiling for a fight, yet the war with the Foreworlds ended two generations ago.
Keywords: Colonization, adventure, space exploration, genetic engineering
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Imperial Deserter by: Andrew Moriarty
Kill a man and you're a murderer. Kill a million and you're a statesman. Dirk should have killed more people.
Keywords: roman galactic empire, galactic empire smuggler, space opera roman empire, roman space emperor, space imperial officer, galactic empire smuggler
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Spaceships & Dames by: Patty Jansen
The women save the day! Nine complete space opera novels with strong female characters
Keywords: space adventure, space western, space opera, first contact
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Black Dawn (The Eurynome Code, Book 1) by: K. Gorman
Karin Makos, genetically engineered from birth through a series of highly dangerous, illegal experiments, has built a life away from those who created her. Living on the run, the chance to pilot a small scrounge ship around the outskirts of the System is the dream—until a System-wide attack decimates humanity and puts her on a collision course with her past. Can she trust a small crew of almost-strangers to have her back?
Keywords: action adventure, space thriller, strong female lead, genetic engineering, twists and turns, found family, mutant powers, Firefly vibes
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Confrontation by: Nathan Hystad
Thomas Baldwin has been appointed captain of the state-of-the-art cruise ship Constantine, named after his heroic grandfather. When their first diplomatic mission turns deadly, all signs point to the return of a former adversary, one the Concord claims to have defeated five decades earlier.
Keywords: First contact, space opera, colonization
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Solatium by: G. S. Jennsen
In the dark, seedy underbelly of Pandora—a lawless colony on the best of days—a young woman who’s lost everything but her soul fights to reclaim her life from a violent, sadistic criminal despot. But when she’s given a chance for freedom, she realizes escape is not enough. First, a just punishment must be exacted for crimes committed.
Keywords: space opera, colonization, galactic empire, technothriller, cyberpunk
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Albion Lost by: Richard Fox
For centuries, the Daegon waited. They plotted. And now they are ready to strike. The core worlds of settled space enjoy a tenuous peace, unaware and ill prepared for the threat building beyond the furthest reaches of humanity. The star kingdom of Albion stands as a shining light of justice and mercy in a harsh galaxy, and they will be the first to suffer the Daegon's fury. Defying his low born status, and despite his self-doubt, Commodore Thomas Gage has risen through the ranks by sheer grit and determination, defending Albion from brutal pirate clans. And when the onslaught comes, Gage and his fleet may be Albion's last hope for freedom.
Keywords: space opera, space fleet, science fiction, military science fiction, action and adventure, men's fiction
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Spaceship Down (From Far Beyond Book 1) by: Christian Kallias
Young Kevin finds himself in command of the last remaining starship in a galactic war on the other side of the galaxy. He must save the good guys from certain doom. From College reject to War Master, Kevin learns he must adapt quickly or billions will die.
Keywords: Space Opera, Artificial Intelligence, First Contact, Galactic Empire, Adventure, Genetic Engineering, Nanotech, VR
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Entanglement by: Gerald M. Kilby
The discovery of game-changing quantum technology sparks an AI war between Earth and the 0ff-world colonies.
Keywords: Artificial Intelligence, AI, Colonization, Space Adventure, robots, hard scifi
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Fringe Runner by: Rachel Aukes
When an old space runner takes on a no-questions-asked contract to deliver a package, he quickly learns that he should've asked questions and that there are far worse things in the galaxy than being broke.
Keywords: space fleet, colonization, space marine, galactic empire, space opera, space pirates, intergalactic war, genetic engineering
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Space Fever by: Toby Neighbors
Four brothers, one vintage spaceship, and a set of secret coordinates that lead to the most valuable mineral in the galaxy… What could possibly go wrong?
Keywords: Space Opera, Science Fiction, Galactic Thriller, Action & Adventure
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Staying Alive by: Toby Neighbors
Four brothers with a secret worth killing for… As they say at the poker tables, the McCoy brothers are “all in” on a mission to mine the most valuable mineral in the galaxy, but there are powerful forces at work trying to stop them.
Keywords: Space Opera, Galactic Thriller, Action & Adventure
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Galaxy Run: A Sci-Fi Thriller by: Joshua James
Bounty hunter Gunnison Creek had a good partner, a decent ship, and four years sober. Not much, but more than he'd had for a long time. Then he took the wrong job.
Keywords: First Contact, Thriller, Aliens
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The Lost Starship: Books 1-3 Complete Saga by: Joshua James
Two boys on a dead spaceship floating through space must save a world on the brink of collapse.
Keywords: Space Adventure, Young Adult
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Rogue Stars by: Multiple Authors
Jump into seven full-length novels exploring the last great frontier. Rogue Stars has alien invasions, artificial intelligence, galactic intrigue, and heroes that will defy orders to do what is right. Download this collection today.
Keywords: Aliens, Artificial Intelligence, Androids, FTL, Galactic Empire, Mystery, Hard Sci-fi
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Terra Nova by: Josh Hayes
Terra Nova. The promised world is humanity’s new home, safe from the threats of a dangerous galaxy, where veterans of a long war could live in peace. The promise was a lie.
Keywords: first contact, space opera, space adventure
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Time Travel

The Feline Affair by: Neve Maslakovic
In this prequel to Neve Maslakovic’s Incident series, a wager concerning a famous physics cat has everyone at St. Sunniva University’s time-travel lab choosing sides. Meanwhile, food has gone missing from the department fridge. Can dean’s assistant Julia Olsen rise to the double challenge presented by one sneaky thief and one elusive historical cat?
Keywords: Time Travel, Mystery, Female Protagonist, Prequel
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Valiant : An Epic Space Opera/Alien Invasion/Time Travel Adventure (Invasion: Earth Saga Book 3) by: Sean Robins
You thought the stakes were high in Invincible (with Earth conquered and 700 million humans killed)? You ain’t seen nothing yet!
Keywords: Space Opera, Military Sci fi, Time Travel, alien invasion
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