Books like 'Defiant'

Readers who enjoyed Defiant by Dave Bara also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.

sc-fi space action / adventure military, war & conflict space-opera military space-fleet galactic-empire aliens invasion

The Colossus by Jay Allan
Rated: 4.50 of 5 stars
· 10 ratings
The Hegemony strikes again… The Confederation and its allies have won their first victory, retaken their capital from he forces of the Hegemony. But the enemy is not beaten, far from it, and they are back, with an unstoppable weapon, a vast superbattleship, a deadly hybrid of imperial and Hegemony technology, called the Colossus...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Nua'll by S.H. Jucha
Rated: 4.42 of 5 stars
· 12 ratings
The Omnian expeditionary fleet sails for the faraway place they call “the wall.” The worlds of humankind have consolidated their resources to create a powerful armada to confront the alien federation.During the Omnians’ previous encounter with an alien fleet at the wall, the Nua’ll comm sphere spoke to them in multiple languages...

Categorized as:
aliens exploration first-contact invasion military space-fleet space-opera action-adventure
Delphi Diversion by Bob Blanton
Rated: 4.42 of 5 stars
· 12 ratings
Catie 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 exploration first-contact military space-fleet space-opera action-adventure audiobook
Duchess of Terra by Glynn Stewart
Rated: 4.42 of 5 stars
· 26 ratings
When Terra knelt to an alien Imperium They guaranteed our safety and our future But now their enemies are coming for us To preserve humanity’s survival and freedom in a hostile galaxy, Annette Bond tied her world to the A!Tol Imperium, taking on the mantle of Duchess of Terra to rule humanity in the Imperium’s name...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Delphi Alliance by Bob Blanton
Rated: 4.44 of 5 stars
· 24 ratings
The 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...

Categorized as:
aliens first-contact invasion military space-fleet space-opera action-adventure ai
Terra and Imperium by Glynn Stewart
Rated: 4.44 of 5 stars
· 23 ratings
Secrets both ancient and new. Powers great and greater— With Terra caught in the middle Humanity’s first colony is a project neither the Duchy of Terra nor the A!Tol Imperium can allow to fail. The planet Hope in the Alpha Centauri system has been lavished with resources and attention—but when an unknown alien force attacks the system, all of that is in danger...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Race Rivalry by S.H. Jucha
Rated: 4.67 of 5 stars
· 6 ratings
The 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...

Categorized as:
aliens first-contact invasion military space-fleet action-adventure adult book
Leviathan's Fear: A Military Sci-Fi Series by Craig Martelle
Rated: 4.67 of 5 stars
· 6 ratings
Trapped in Ga’ee space, Leviathan runs for its life.And the lives of its crew.Declan Payne and Harry Wesson decide to go on the offensive. They have no choice.They can’t go home. It only delays the inevitable.The Ga’ee march relentlessly into the space of the seven races while turning an inward eye toward the interloper, the ship they call God1...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Sector Force by Jamie Davis, Michael Anderle
Rated: 4.67 of 5 stars
· 6 ratings
Tardex is safe and the Marshals of Lone Wolf Squadron stand down for some much needed rest and relaxation.Needless to say, the frontiers of the Etheric Federation don’t stay peaceful for long.The growing squadron must battle sinister forces threatening their part of the frontier.A delegation arrives from a neighboring system to request aid from Commander Beau Ward and his pilots...

Categorized as:
space-opera military exploration space-fleet galactic-empire aliens invasion first-contact
The Terran Privateer by Glynn Stewart
Rated: 4.31 of 5 stars
· 16 ratings
Earth is conquered. Sol is lost. One ship is tasked to free them. One Captain to save them all. When an alien armada destroys the United Earth Space Force and takes control of the human homeworld, newly reinstated Captain Annette Bond must take her experimental hyperspace cruiser Tornado into exile as Terra’s only interstellar privateer...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Junkyard Spaceship by Jamie McFarlane
Rated: 4.46 of 5 stars
· 21 ratings
When aliens threaten his country, one grumpy old vet will take the fight to the stars.Albert Jenkins would like nothing more than to putter around his junkyard, selling parts and working on old cars. When an alien spacecraft is shot down by US Air Defense and crash lands on his newly rebuilt home, he’s dragged back into the fight of his life...

Categorized as:
aliens exploration first-contact invasion military space-opera action-adventure adult
Darkness Beyond by Glynn Stewart
Rated: 4.41 of 5 stars
· 24 ratings
A newly-founded human colony world burned from orbit A warship squadron of the galaxy’s oldest race ambushed and destroyed An ancient enemy reborn in the darkness beyond the known stars The A!Tol Imperium and their new human subjects have had fifteen years of relative peace. New colonies have been founded, new worlds explored, new ships built...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Star Force: Origin Series Box Set (97-100) by Aer-ki Jyr
Rated: 4.50 of 5 stars
· 8 ratings
The 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:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult
Star Force: Rift by Aer-ki Jyr
Rated: 4.50 of 5 stars
· 8 ratings
The 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...

Categorized as:
aliens galactic-empire military space-fleet space-opera action-adventure adult book
Shield of Terra by Glynn Stewart
Rated: 4.45 of 5 stars
· 20 ratings
The mother, ruler of an entire world Sent to the heart of an old enemy to build a new peace The daughter, officer of a deadly warship Sent to the darkness to find the new enemy hunting them all A dozen inhabited worlds of the Kanzi Theocracy and the A!Tol Imperium are ash...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Excalibur Lost: a Space Opera Novella by Glynn Stewart
Rated: 4.40 of 5 stars
· 10 ratings
A 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 invasion military space-fleet space-opera action-adventure
Crusade by Glynn Stewart
Rated: 4.40 of 5 stars
· 10 ratings
A 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 exploration first-contact galactic-empire invasion military space-fleet space-opera
Galactar by Anthony James
Rated: 4.40 of 5 stars
· 10 ratings
Following decades of war and the recent catastrophic loss of an entire planet, the Human Planetary Alliance is riven by internal disputes and rivalries. The military’s old guard fights for power against those who see a chance to turn things around.After a series of hard-fought victories, Captain Carl Recker is becoming recognized as a man who gets results - a man who knows how to beat the Daklan...

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Fulcrum Gun by Anthony James
Rated: 4.40 of 5 stars
· 10 ratings
Lost in hostile space and pursued by the most powerful warship in the known universe, Captain Carl Recker is losing hope and running out of options. His battleship Fulcrum is no match for this enemy and the Meklon aliens who might have helped him are dead, killed by the Galactar’s murderous weaponry.Somehow, Recker must find a way to succeed where the might of an alien empire already failed...

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Laws of Ancidium by Anthony James
Rated: 4.40 of 5 stars
· 10 ratings
Having fought his hardest battle, Captain Carl Recker returns to planet Lustre, bringing the alien battleship Fulcrum with him.Recker is under no illusions that he’ll be offered backdated shore leave, but his feet don’t even touch the ground before trouble shows up. A heavily armed fifty-thousand-metre Meklon interstellar drops out of lightspeed near the planet...

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Family Law by Mackey Chandler
Rated: 4.40 of 5 stars
· 10 ratings
People 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 invasion military space-fleet space-opera action-adventure adult
The Dark Invaders by Raymond L. Weil
Rated: 4.40 of 5 stars
· 10 ratings
From USA Today Best Selling Author Raymond L. Weil comes the second book in the Star Cross series. Over fourteen months have passed since Fleet Admiral Kurt Vickers drove the Profiteers from Earth. Eighty million people died while the planet was being ransacked and its wealth stolen. Now a new and deadlier threat comes from intergalactic space...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
The Long Voyage of the Little Fleet by Mackey Chandler
Rated: 4.40 of 5 stars
· 10 ratings
In 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...

Categorized as:
aliens exploration first-contact military space-fleet space-opera action-adventure adult
Refuge by Glynn Stewart
Rated: 4.36 of 5 stars
· 11 ratings
A dying world, shattered by a broken machineA desperate flight, their only hope for refugeA robotic race, ally and destroyer alikeThe Republic of Exilium has grown in strength and confidence at the far end of the galaxy from the rest of mankind, sending out scout ships to survey the worlds around them as they try to learn more about the mysterious Construction Matrix AIs...

Categorized as:
aliens exploration first-contact invasion military space-fleet space-opera action-adventure
Relics of Eternity by Glynn Stewart
Rated: 4.33 of 5 stars
· 12 ratings
The edge of Imperial expansionFar from Earth and the other homeworldsHere lie the secrets of ancient godsHere…there be dragonsSeeking to escape the shadow of Annette Bond’s success, Captain Morgan Casimir has taken a posting on the far side of the A!Tol Imperium. Here, she hopes to begin a legend for herself that stands apart from her stepmother the Duchess...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
The Prince Awakens by Fred Hughes
Rated: 4.33 of 5 stars
· 12 ratings
Hazard King had always wanted to be an Imperial Fleet officer, just like his father.But he’s a Prince of the Realm, which make things a bit more… complicated. And when Hazard’s parents tell him that they don’t trust his older brother and want Hazard to be the Crown Prince—the heir to the throne—things go from bad to worse.And just when they can’t get any worse, the Empress is attacked...

Categorized as:
space-opera military aliens invasion galactic-empire first-contact space-fleet exploration
Direct Fire by Rick Partlow
Rated: 4.41 of 5 stars
· 21 ratings
From street criminal to war hero.From outcast to Marine officer.The journey has been a long one, but now it’s reaching the end.Cam Alvarez leads his platoon of Drop-Troopers into the Tahni Imperium, into the final days of the war and the bloodiest battles yet...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
The Others by Jay Allan
Rated: 4.46 of 5 stars
· 17 ratings
From the deepest darks of unknown space, evil comes… Admiral Tyler Barron and the Confederation navy face a new threat, darker and deadlier than any that have come before...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Dark Moon Arisen by Chris Kennedy, Mark Wandrey
Rated: 4.50 of 5 stars
· 6 ratings
The war continues! The Omega War is in full swing. Earth has fallen to General Peepo’s army, and the surviving Human mercenaries have taken refuge at the hidden Winged Hussars’ base in New Warsaw...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Shout of Honor by Sharon Lee, Steve Miller
Rated: 4.50 of 5 stars
· 6 ratings
Commander Vepal is a Hero. He is also the Yxtrang ambassador to the greater universe. These two facts do not make Vepal's life easy. But they do make it interesting...

Categorized as:
aliens first-contact invasion military space-opera action-adventure adult book
Corruption by Sarah Noffke, Michael Anderle
Rated: 4.50 of 5 stars
· 6 ratings
A new evil lurks in the darkness. After an explosion, the crew of a battlecruiser mysteriously disappears.Bailey and Lewis, complete strangers, find themselves suddenly onboard the damaged ship. Lewis hasn’t worked a case in years, not since the final one broke his spirit and his bank account. The last thing Bailey remembers is preparing to take down a fugitive on Onyx Station...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Alpha Contracts by Chris Kennedy, Mark Wandrey
Rated: 4.50 of 5 stars
· 6 ratings
“Before CASPers were the lords of the battlefield, men tested their metal against aliens one-on-one.” First contact has been made, and Earth’s militaries and its premier mercenary companies stand ready to take their first tentative steps outside the Solar System...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Kill Box by Rick Partlow
Rated: 4.50 of 5 stars
· 6 ratings
Book 9 in the Amazon Bestselling Drop Trooper series by Rick Partlow is here...

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
The Dragonback Series Books 4–6: Dragon and Herdsman, Dragon and Judge, Dragon and Liberator by Timothy Zahn
Rated: 4.50 of 5 stars
· 6 ratings
The final three novels in the Dragonback sci-fi saga from the #1 New York Times–bestselling and Hugo Award–winning author of Star Wars: Thrawn—“Enthralling” (Science Fiction Chronicle). Young fugitive Jack Morgan and alien K’da warrior Draycos are inseparable—quite literally. They’ve been together since a desperate Draycos was forced to bond with Jack as his host in order to survive...

Categorized as:
aliens invasion military space-fleet space-opera action-adventure book fiction
Star Force: Phoenix by Aer-ki Jyr
Rated: 4.50 of 5 stars
· 6 ratings
Cal-com's journey is not at an end. In fact, it's just beginning..

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Acheron Redemption by Ken Lozito
Rated: 4.50 of 5 stars
· 6 ratings
Sentinel warships were the answer to the Federation Wars. They brought peace and stability....or so they thought.The Sentinels are a menace, terrorizing spacers across the galaxy in their hunt. But change is coming, and spacers across the galaxy will have to choose whether to fight for their future or not...

Categorized as:
aliens first-contact galactic-empire invasion military space-fleet space-opera action-adventure
Star Force: Dawn of the Apocalypse by Aer-ki Jyr
Rated: 4.50 of 5 stars
· 6 ratings
The onslaught has begun and the galaxy must cope with a very slow moving certainty of its eventual destruction...

Categorized as:
aliens galactic-empire military space-fleet space-opera action-adventure adult book
Star Force: Reclaimers by Aer-ki Jyr
Rated: 4.50 of 5 stars
· 6 ratings
Does Star Force have enough races in it yet? No...not even close...

Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult
Valkyrie's Daughter by John E. Siers
Rated: 4.50 of 5 stars
· 6 ratings
The alien Akara have a secret. They've discovered the location of a planet that is home to a primitive human civilization, another ancient "seeding" of the legendary Progenitors. But this planet lies in the territory of the Otuka, spacefaring alien predators who consider human flesh to be a delicacy and the planet to be their private hunting preserve...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Junkyard Raiders by Jamie McFarlane
Rated: 4.59 of 5 stars
· 12 ratings
Dumped on a backwater planet, heroic old vets will risk everything to take a stand against vicious alien invaders.On the pastoral, backwater planet of Fimil Alpha, something or someone is eradicating the tribespeople of the Gauder Plains. Back on Earth, Albert Jenkins and his crew are enjoying the short-lived fame that accompanied their last adventure...

Categorized as:
aliens first-contact galactic-empire invasion military space-opera action-adventure adult
War Eternal, Books 1-3 by M.R. Forbes
Rated: 4.38 of 5 stars
· 8 ratings
3 books. 1000+ pages. Over 100,000 unbundled copies sold. Book 1: Starship Eternal A lost starship... A dire warning from futures past... A desperate search for salvation… Captain Mitchell “Ares” Williams is a Space Marine and the hero of the Battle for Liberty, whose Shot Heard ‘Round the Universe saved the planet from a nearly unstoppable war machine...

Categorized as:
aliens first-contact galactic-empire invasion military space-fleet space-opera action-adventure
Star Force: Origin Series by Aer-ki Jyr
Rated: 4.38 of 5 stars
· 8 ratings
The 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:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Star Force: Origin Series by Aer-ki Jyr
Rated: 4.38 of 5 stars
· 8 ratings
The 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:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Empires in Ruin by Anthony James
Rated: 4.38 of 5 stars
· 8 ratings
Protected by their energy shields, the Lavorix warships Aeklu and Verumol survived the largest explosion ever created by technology. Now salvaged by the Human Planetary Alliance and their new Daklan allies, these once unstoppable weapons of mass destruction sit in a construction yard undergoing extensive repairs...

Categorized as:
aliens exploration galactic-empire invasion military space-fleet space-opera action-adventure
Delphi Envoy by Bob Blanton
Rated: 4.38 of 5 stars
· 8 ratings
Catie finally gets to go visit all the other civilizations known to the Paraxians. She is supposed to get them to join the Delphi League. But things don't go as smoothly as she expects. For some reason, there's resistance to anything she does. Come along and help Catie uncover the secrets on Aperanje...

Categorized as:
aliens exploration first-contact invasion military space-fleet action-adventure audiobook
Star Force: Ysalamir by Aer-ki Jyr
Rated: 4.38 of 5 stars
· 8 ratings
V'kit'no'sat and Star Force must unite for a special project in order to find a better way to fight the Hadarak...

Categorized as:
aliens exploration galactic-empire military space-fleet space-opera action-adventure book
Formation (Forgotten Space Book 2) by M.R. Forbes
Rated: 4.30 of 5 stars
· 10 ratings
After narrowly escaping destruction, Nicholas and his crew find themselves flung far across the universe with no way home. When a distress call from a nearby planet catches their attention, they decide to investigate with the hope the signal is somehow connected to their arrival.It isn’t long before the truth of Foresight’s mission comes into clearer focus, and Nicholas doesn’t like what he sees...

Categorized as:
aliens first-contact galactic-empire invasion military space-fleet space-opera action-adventure
Adventures of the Starship Satori: Book 1-6 Complete Library by Kevin McLaughlin
Rated: 4.30 of 5 stars
· 10 ratings
Collected together for the first time, read the opening six-book arc of USA Today Bestseller Kevin McLaughlin's epic starship Satori series! Dan Wynn thought he was grounded forever, but was given one last shot at the stars. Beth Wynn figured she'd never see her ex-husband again, until the adventure of a lifetime brought them back together...

Categorized as:
aliens first-contact invasion military space-fleet action-adventure adult book
The Alliance by Raymond L. Weil
Rated: 4.30 of 5 stars
· 10 ratings
A mission to free a world from the Kleese has gone terribly wrong. Lieutenant Ryan Nelson and his Marines are trapped with no hope of rescue. On the Kleese home world, a division grows between the regular Kleese and the militaristic Zaltule. The war against the Kleese intensifies as the human led Alliance attempts a daring attack against the heart of the Kleese Empire...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera
Insurrection by Raymond L. Weil
Rated: 4.30 of 5 stars
· 10 ratings
The final battle between the Humans and the Zaltule is drawing near. However, the Arachnids have a secret that will ensure victory and allow them to wipe out the Human race once and for all.In the Strell Empire, former Supreme Overlord Xatul plans his return. He has amassed a fleet to take back control of the Kleese Empire...

Categorized as:
aliens exploration first-contact galactic-empire invasion military space-fleet space-opera

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