Books like 'Cain's Crusaders'
Readers who enjoyed Cain's Crusaders by T.R. Harris also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi space military, war & conflict space-opera aliens military first-contact space-fleet super-powered galactic-empire
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Revolution by Joshua Dalzelle
Rated: 4.58 of 5 stars · 26 ratingsFor thousands of years the ConFed has been the most powerful force in the quadrant. It is the umbrella under which hundreds of planets and trillions of beings live in relative peace ... despite the corruption and waste, it's a system that most accept as preferable to the chaos that would ensue in its absence...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Omega Force: Unleashed by Joshua Dalzelle]()
Omega Force: Unleashed by Joshua Dalzelle
Rated: 4.60 of 5 stars · 10 ratingsThe ConFed has ruled the galactic quadrant for nearly two thousand years. During that time a relative peace has been kept by threat of force from their mighty fleet. But as with all things, their dominance must come to an end.Now that the ConFed is crumbling and their fleet is withdrawing back to the Core Worlds, the strong are once again preying on the weak... -
![Remnant Faction by Glynn Stewart]()
Remnant Faction by Glynn Stewart
Rated: 4.55 of 5 stars · 11 ratingsIt is the first and final duty of any warship to put herself between the innocent... and the enemy.Henry Wong and Sylvia Todorovich have gathered the interstellar powers of the Ra Sector into a tentative alliance—an alliance that is tested by the return of the Sector’s former rulers: the Kenmiri Remnant...Categorized as:
space-opera military aliens galactic-empire first-contact space-fleet sci-fi suspense -
![No Retreat by J.N. Chaney, Terry Mixon]()
No Retreat by J.N. Chaney, Terry Mixon
Rated: 4.50 of 5 stars · 12 ratingsWhen things are going to plan, check to see what you’re missing.Admiral Jack Romanoff and his crew are trapped inside the Confederation proper and facing an unknown number of alien attack ships. They’d thought the Tardan military was defeated, but they’d been wrong. Now they were trapped in a fight they couldn’t lose.When everything seems exactly as you’d hoped, figure out what you’ve missed...Categorized as:
space-opera military first-contact aliens space-fleet galactic-empire sci-fi fiction -
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![Under Siege by J.N. Chaney, Terry Mixon]()
Under Siege by J.N. Chaney, Terry Mixon
Rated: 4.50 of 5 stars · 12 ratingsOnly one world in the cluster remains in enemy hands.Admiral Jack Romanoff and his crew have one remaining nut to crack before they can turn their attention to the people that overthrew the Confederation. The Vesuvius system has become a fortress, so it won’t be an easy fight, but it is one they cannot lose and survive.When force alone won’t do the trick, add guile...Categorized as:
military space-opera first-contact aliens space-fleet galactic-empire sci-fi fiction -
![The Pandora Paradox by Joshua Dalzelle]()
The Pandora Paradox by Joshua Dalzelle
Rated: 4.58 of 5 stars · 21 ratingsIt started with a revolution nobody had even realized occurred…Its cruelty sparked a rebellion that everyone refused to admit existed…Now, the Machine—a terrifying and relentless enemy—reigns supreme in the galaxy, and the real fight is just beginning...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Star Wars: Thrawn Ascendancy by Timothy Zahn]()
Star Wars: Thrawn Ascendancy by Timothy Zahn
Rated: 4.39 of 5 stars · 36 ratingsThe fate of the Chiss Ascendancy hangs in the balance in the epic finale of the Star Wars: Thrawn Ascendancy trilogy from bestselling author Timothy Zahn. For thousands of years The Chiss Ascendancy has been an island of calm, a center of power, and a beacon of integrity. Led by the Nine Ruling Families, their leadership stands as a bulwark of stability against the Chaos of the Unknown Regions...Categorized as:
aliens galactic-empire military space-fleet space-opera action-adventure adult audiobook -
![Command Authority by J.N. Chaney, Terry Mixon]()
Command Authority by J.N. Chaney, Terry Mixon
Rated: 4.43 of 5 stars · 14 ratingsVictory snatched from the jaws of defeat.Commodore Jack Romanoff and his ragtag crew have repaired their ancient battleship, scatteredtheir adversaries at New Copenhagen, and discovered what was really behind the invasion. Nowthey must make the enemy bleed and start liberating the cluster.Betrayal from the shadows...Categorized as:
military space-opera first-contact aliens space-fleet galactic-empire sci-fi fiction -
![The Enemy Revealed by J.N. Chaney, Terry Mixon]()
The Enemy Revealed by J.N. Chaney, Terry Mixon
Rated: 4.43 of 5 stars · 14 ratingsVictory, but at what cost?Commodore Jack Romanoff and his crew won the battle for New Copenhagen but lost their quantum drive in the fight. Now they must free the human prisoners and strengthen their defenses before the Locusts trap them.If it’s not already too late.Only the alien hyperdrive they recovered offers a chance to get a new quantum drive and more missiles before time runs out...Categorized as:
space-opera military first-contact aliens space-fleet galactic-empire sci-fi fiction -
![Commander by Richard F. Weyand]()
Commander by Richard F. Weyand
Rated: 4.71 of 5 stars · 7 ratingsTHE EMPIRE’S NEW NAVYThe Emperor Trajan is building a powerful new navy for the Sintaran Empire. Remotely piloted warships can accelerate faster than humans can withstand, and ships spend so much time in hyperspace, a single crew can man multiple ships, solving the perennial manpower problem... -
![Paladin: Age of Expansion by Natalie Grey, Michael Anderle]()
Paladin: Age of Expansion by Natalie Grey, Michael Anderle
Rated: 4.63 of 5 stars · 8 ratingsBarnabas has traced the influence of the Yennai Corporation from High Tortuga to their secret base, which he has destroyed, killing both heirs to the company. Who hasn’t he killed? Koel Yennai, the patriarch and founder…who has sworn vengeance on Barnabas for killing his children and destroying his legacy...Categorized as:
aliens first-contact galactic-empire space-opera adult book fiction genetic-engineering -
![Empire by Joshua Dalzelle]()
Empire by Joshua Dalzelle
Rated: 4.63 of 5 stars · 8 ratingsThe final fight for control of humanity begins now.The United Terran Federation is on the brink of collapse after a devastating attack by the Eastern Star Alliance that has left four planets depopulated and uninhabitable. Terrified member worlds are fleeing from the Federation and the remnant of their once-mighty fleet has retreated to the last place they are welcome: Earth... -
![To Hell and Back by Joshua Dalzelle]()
To Hell and Back by Joshua Dalzelle
Rated: 4.65 of 5 stars · 16 ratingsA new killer is cutting a bloody swath through the frontier worlds.Rumors of its exploits are spreading and, like a ghost, nobody even knows what it looks like.Captain Jason Burke and his crew watch this growing menace with a mix of unease… and guilt. They know who this killer is. He used to be one of them.Seven, as he now called himself, is their former crewmate... -
![Acheron Inheritance by Ken Lozito]()
Acheron Inheritance by Ken Lozito
Rated: 4.50 of 5 stars · 10 ratingsFirst, the Federation Wars toppled the galactic order.On a dying world along the galactic fringe, Quinton Aldren awakens in the body of an archaic android that’s barely operational. He has only vague memories of who he was and no idea what has happened...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
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![Checkmate by Michael Anderle]()
Checkmate by Michael Anderle
Rated: 4.79 of 5 stars · 12 ratingsThe end is nigh for either humanity or the ascensionists. Who will be left to pick up the pieces?Gödel has made her final move and the future of Irth hangs in the balance... -
![Delphi Diversion by Bob Blanton]()
Delphi Diversion by Bob Blanton
Rated: 4.42 of 5 stars · 12 ratingsCatie is on her way back to Earth after having settled the Fazulan slaves when the wormhole her ship is traveling in collapses. They are diverted to another system where big chunks are flying around. They rescue a ship and find themselves in the middle of a series of mysteries...Categorized as:
aliens first-contact military space-fleet space-opera action-adventure audiobook book -
![Earth Ascendant by Raymond L. Weil]()
Earth Ascendant by Raymond L. Weil
Rated: 4.42 of 5 stars · 12 ratingsFrom USA Today Bestselling Author Raymond L. Weil comes the second book in a new military science fiction series.The war between the seven alien races of the Confederation and Earth heats up as the two come into direct conflict over the former Human Empire. The people or Earth are determined to free it, and the Confederation is determined to keep it under their strict control...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera adult audiobook -
![Fortitude by Glynn Stewart]()
Fortitude by Glynn Stewart
Rated: 4.42 of 5 stars · 12 ratingsAn offer that no one else could matchA mission that no one else could achieveAn enemy only a few know they share…Commodore Kira Demirci is now the commander of a small but powerful mercenary force—one of the most dangerous in the cluster of stars she now calls home. Her own actions have brought peace to the Syntactic Cluster, though, and a mercenary is in limited demand...Categorized as:
military space-opera galactic-empire space-fleet sci-fi action-adventure soldiers fiction -
![Ships of the Line by J.N. Chaney, Terry Mixon]()
Ships of the Line by J.N. Chaney, Terry Mixon
Rated: 4.42 of 5 stars · 12 ratingsVictory belongs to the strong and cunning warrior.Admiral Jack Romanoff and his crew have turned two enemies against one another via misdirection and timing. That gives them the breathing room to get back to their feet, but as any savvy commander knows, the footing on any battlefield is treacherous. One misstep could cost a warrior everything.Blood is the only coin that can buy victory...Categorized as:
space-opera military first-contact aliens space-fleet galactic-empire sci-fi fiction -
![Redemption by Joshua Dalzelle]()
Redemption by Joshua Dalzelle
Rated: 4.41 of 5 stars · 27 ratingsThere is a fine line between right and wrong, good and evil. For years Jason Burke has straddled that line as best he can, always convinced that despite the violence carried out by him and his team they were firmly on the right side of that line. But as he reflects on his time with Omega Force, he begins to have his doubts...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Delphi Alliance by Bob Blanton]()
Delphi Alliance by Bob Blanton
Rated: 4.44 of 5 stars · 24 ratingsThe McCormacks have their floating city growing in the South Pacific, and their space station well underway. As they continue their quest to unite Earth and bring her into the modern age of space travel and repair her environment before it’s too late, they have to fight with the major powers that aren’t too sure they want to change the status quo... -
![Race Rivalry by S.H. Jucha]()
Race Rivalry by S.H. Jucha
Rated: 4.67 of 5 stars · 6 ratingsThe sisters’ leader, Miriamal, and three mining chairpersons investigate an unexplored wormhole for possible economic expansion. Aboard the Dominance, they exit the wormhole and are stunned to find the nearby system inhabited. More troubling, technologically advanced warships hold station above the system’s exoplanet... -
![Indomitable by Jonathan Brazee]()
Indomitable by Jonathan Brazee
Rated: 4.67 of 5 stars · 6 ratingsBeth “Fire Ant” Dalisay is the Navy’s top ace. But the alien Crystals really don’t care. They intend on wiping out humanity no matter who stands in their way. Pulled from her Wasp fighter, the Navy assigns Beth as a scout pilot with a mission to find the Crystal’s home world... -
![Obliteration by Sarah Noffke, Michael Anderle]()
Obliteration by Sarah Noffke, Michael Anderle
Rated: 4.67 of 5 stars · 6 ratingsA new evil lurks in the darkness. The crew is relieved by Dejoure’s perplexing ability to soothe the monster, but that won’t keep them safe for long.Precious Galaxy Coffee Company is under constant attack. Someone wants to take out the biggest giant in the galaxy. The team goes after the other databases only to learn something that changes everything. Vance is always one step ahead of them...Categorized as:
aliens first-contact space-fleet space-opera galactic-empire military sci-fi invasion -
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![Determination by Sarah Noffke, Michael Anderle]()
Determination by Sarah Noffke, Michael Anderle
Rated: 4.67 of 5 stars · 6 ratingsA new evil lurks in the darkness Bailey and Lewis are more determined than ever to find Ricky Bobby’s missing crew.Monstre Corp knows they are on the hunt, and Solomon Vance isn’t letting them get close. The monster is still out there, a threat they can’t stop. Jack decides the only way to win is to fake their own deaths. If Vance believes they’re dead, he’ll let down his guard...Categorized as:
aliens first-contact space-fleet space-opera galactic-empire military sci-fi invasion -
![Star Force: Origin Series Box Set (97-100) by Aer-ki Jyr]()
Star Force: Origin Series Box Set (97-100) by Aer-ki Jyr
Rated: 4.50 of 5 stars · 8 ratingsThe Origin Series is empire building at its finest, with 100 episodes and over 2.5 million words in the military science fiction serial detailing the rise of Star Force from corporate entity into an interstellar empire over the course of more than a millennium... -
![Star Force: Rift by Aer-ki Jyr]()
Star Force: Rift by Aer-ki Jyr
Rated: 4.50 of 5 stars · 8 ratingsThe temporary truce between Star Force and the V'kit'no'sat sends shockwaves throughout the galaxy. No one has ever defied the V'kit'no'sat and lived, but now Star Force has and many races are taking notice...including one that no one expects, on either side... -
![Star Force: Excalibur by Aer-ki Jyr]()
Star Force: Excalibur by Aer-ki Jyr
Rated: 4.50 of 5 stars · 8 ratingsThe Zak'de'ron take note of the Rit'ko'sor joining Star Force, making contact and making their wishes known...but in the process they make a critical mistake that will forever alter their relationship with the trailblazers... -
![Mistress Of The Ages by Michael R. Hicks]()
Mistress Of The Ages by Michael R. Hicks
Rated: 4.50 of 5 stars · 8 ratingsIn the final volume of THE FIRST EMPRESS Trilogy, the Kreelan warrior priesthoods, once charged with teaching and preserving the tenets of the Way, have sown the seeds of their own destruction by allying themselves with the Dark Queen and letting loose the ancient evil of Ka’i-Nur... -
![Explorations by Raymond L. Weil]()
Explorations by Raymond L. Weil
Rated: 4.50 of 5 stars · 8 ratingsDisaster has struck the Human Federation of Worlds. The Eternals have finally found Earth and are preparing to destroy it and the rest of the Federation. They begin gathering a massive fleet to overwhelm and destroy all of the Human worlds...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera adult audiobook -
![Federation Marine: Recruit by Jonathan P. Brazee, Jonathan P. Brazee]()
Federation Marine: Recruit by Jonathan P. Brazee, Jonathan P. Brazee
Rated: 4.50 of 5 stars · 8 ratingsPreviously published as “United Federation Marine Corps”, now updated and re-edited. What would you do to change your life? How far would you go? How hard would you fight?Rather than work his bones into dust toiling away on a barren world, Ryck Lysander chooses to enlist in the Federation Marine Corps.But as he quickly finds out, this path isn't just a job. . . it's a calling. . -
![The Bad Company: Age of Expansion - A Kurtherian Gambit Series by Craig Martelle, Michael Anderle]()
The Bad Company: Age of Expansion - A Kurtherian Gambit Series by Craig Martelle, Michael Anderle
Rated: 4.40 of 5 stars · 10 ratingsHumanity’s greatest export—Justice. Space is a dangerous place, even for the wary, especially for the unprepared. The aliens have no idea. Here comes the Bad Company. Colonel Terry Henry Walton takes his warriors into battle, for a price, in this first installment of The Bad Company. He believes in the moral high ground and is happy getting paid for his role in securing it... -
![Excalibur Lost: a Space Opera Novella by Glynn Stewart]()
Excalibur Lost: a Space Opera Novella by Glynn Stewart
Rated: 4.40 of 5 stars · 10 ratingsA broken speciesA broken manA lost legend…Only dreams and stories remain of the worlds humanity once called home, but scattered refugees live in the corners of the empire of their conquerors, the Sacred Council of Races...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Crusade by Glynn Stewart]()
Crusade by Glynn Stewart
Rated: 4.40 of 5 stars · 10 ratingsA newborn Alliance, forged to stop the destroyers of worldsA potential ally, with secrets hidden by a thousand liesA long-doomed star, whose ruins hold a vital answer...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
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![Star Force: Origin Series by Aer-ki Jyr]()
Star Force: Origin Series by Aer-ki Jyr
Rated: 4.40 of 5 stars · 10 ratingsThe Origin Series is empire building at its finest, with 100 episodes and over 2.5 million words in the military science fiction serial detailing the rise of Star Force from corporate entity into an interstellar empire over the course of more than a millennium...Categorized as:
galactic-empire military space-fleet space-opera super-powered action-adventure book colonization -
![Family Law by Mackey Chandler]()
Family Law by Mackey Chandler
Rated: 4.40 of 5 stars · 10 ratingsPeople love easily. Look at most of your relatives or coworkers. How lovable are they? Really? Yet most have mates and children. The vast majority are still invited to family gatherings and their relatives will speak to them. Many have pets to which they are devoted. Some even call them their fur-babies...Categorized as:
aliens first-contact military space-fleet space-opera action-adventure adult audiobook -
![Search for the Lost by Raymond L. Weil]()
Search for the Lost by Raymond L. Weil
Rated: 4.40 of 5 stars · 10 ratingsFrom USA Today Best Selling Author Raymond L. Weil comes the second book in the Originator Wars series. The Eternals have decided to conquer Originator space. All that stands between them are the Originator AIs and the Humans, or at least that is what the Eternals believe. In preparation for the invasion, they begin gathering their massive warfleet...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera adult audiobook -
![The Long Voyage of the Little Fleet by Mackey Chandler]()
The Long Voyage of the Little Fleet by Mackey Chandler
Rated: 4.40 of 5 stars · 10 ratingsIn the first book of this series "Family Law", Lee's parents and their business partner Gordon found a class A habitable planet. They thought their quest as explorers was over and they'd live a life of ease. But before they could return and register their claim Lee's parents died doing a survey of the surface... -
![Shell Game by J.N. Chaney, Terry Mixon]()
Shell Game by J.N. Chaney, Terry Mixon
Rated: 4.40 of 5 stars · 10 ratingsIf you can't hide the game, conceal the pieces. Admiral Jack Romanoff and his people have located the system the Tardans are using as their command post for the invasion of the Confederation. Only they can't simply attack militarily because of the stellar terrain, so they need to improvise. When the stakes are high, leave no option unexplored...Categorized as:
space-opera military first-contact aliens space-fleet galactic-empire sci-fi fiction -
![Lightning Strike by J.N. Chaney, Terry Mixon]()
Lightning Strike by J.N. Chaney, Terry Mixon
Rated: 4.40 of 5 stars · 10 ratingsIn combat, speed is life.Admiral Jack Romanoff and his people have seized control of Faust and now have a base of operations, though the people of that world aren't completely pleased by his presence or actions. That's okay because he doesn't have time to worry about them. He needs to strike the Locusts before they spread even more than they already have in the wreck everything humanity has built...Categorized as:
space-opera military first-contact aliens space-fleet galactic-empire sci-fi fiction -
![Into the War by James Rosone]()
Into the War by James Rosone
Rated: 4.44 of 5 stars · 20 ratingsHumanity stumbles into a galactic war……a war of survival, a conflict with no endEarth has united under the banner of the Republic. Humanities brightest minds have deciphered the secrets to the alien technology and begin to reverse engineer it. An elder race takes notice of humanities strides and intervenes...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera adult audiobook -
![Among Enemies by Evan Currie]()
Among Enemies by Evan Currie
Rated: 4.54 of 5 stars · 15 ratingsFor Sorilla Aida, the war has been ongoing. Peace was called, officially, but in the shadows her battles continued. The Alliance and SOLCOM are ready to call an end to it all now, but no one has yet been able to tell her why. Why the fighting began, why her allies, and enemies alike, died. Not even why it was over.She had to know, or at least she had to try to find out... -
![Raven's Peace by Glynn Stewart]()
Raven's Peace by Glynn Stewart
Rated: 4.31 of 5 stars · 13 ratingsTen thousand stars, once chained, taste freedom An eternal empire, once undefeated, falls to pieces An alliance, once united, now lacks a common foe War was hard enough. Peace may be impossible For seventeen years, Colonel Henry Wong and the United Planets Space Force have fought the Kenmiri Empire...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Into the Battle by James Rosone]()
Into the Battle by James Rosone
Rated: 4.35 of 5 stars · 24 ratingsMankind has awakened a monster……Humanity must put aside its own animosities……or face extinctionThe origins of human history begin to unravel as Earth learns they are not the only humans in the galaxy. The sudden discovery of humans living on multiple planets beyond Earth has created more questions than it’s answered... -
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![Conquest by Ivan Kal]()
Conquest by Ivan Kal
Rated: 4.50 of 5 stars · 6 ratingsThe conquest of the Erasi has begun and fleets clash over Erasi worlds. But while the alliance of the Shara Daim, Empire, and Krashinar has an advantage, the war is far from won. The Erasi industrial capacity as well as their population and size make it hard to conquer and harder to hold...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera super-powered adult -
![Degeneration by Sarah Noffke, J.N. Chaney]()
Degeneration by Sarah Noffke, J.N. Chaney
Rated: 4.50 of 5 stars · 6 ratingsKill the bad guys. Save the Galaxy. All in a hard day’s work. Eddie might be enhanced, but Ghost Squadron must expand if they’re going to keep the Federation safe from Felix Castile, a man hell bent on nothing less than the assassination of General Lance Reynolds. To stop him, Ghost Squadron will have to do the impossible----infiltrate the enemy’s stronghold...Categorized as:
aliens first-contact galactic-empire military space-fleet space-opera action-adventure adult -
![Planet Fall by Toby Neighbors]()
Planet Fall by Toby Neighbors
Rated: 4.50 of 5 stars · 6 ratingsThe highly anticipated conclusion to the Kestrel Class Saga is here.The crew of the Modulus Echo are trapped on the planet Gershwin. The Krah Empire has returned with overwhelming force, and the Royal Imperium fleet is divided by petty rivalries and opposing political views. The path to victory is clear - close the worm hole, defeat the aliens, and retake what has been lost... -
![Zero Friction by Toby Neighbors]()
Zero Friction by Toby Neighbors
Rated: 4.50 of 5 stars · 6 ratingsThe bestselling space opera is back! The crew of the Modulus Echo is stuck in service to Brigadier General Alicia Pershing in exchange for their freedom. But while working for the Royal Imperium may have its perks, it is also extremely dangerous. From space battles to rescue missions, Ben and his friends will have to use all their resourcefulness if they hope to survive... -
![Sector Seventeen by S.J. MacDonald]()
Sector Seventeen by S.J. MacDonald
Rated: 4.50 of 5 stars · 6 ratingsFor centuries, there have been glimpses of something very strange and very fast in the turbulent space beyond Telathor, known to spacers as the Space Monster of Sector Seventeen. Now the Fourth is sent to investigate the Phenomenon under orders never to use the M word – nobody, after all, wants to be on record as the person who sent warships to hunt for a space monster... -
![Ace by Jonathan Brazee]()
Ace by Jonathan Brazee
Rated: 4.50 of 5 stars · 6 ratingsAlien Crystals don't recognize human boundaries. The Navy of Humankind has to hold them back. Small fighters in the vastness of space. Joint Task Force Iron Shield stands ready. Too small to defend everywhere, they need intel so they can go on the attack. Maximize their firepower. Maximize their impact. The Crystals do not know fear. They are coming for what they want...
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