Books like 'Behemoth'
Readers who enjoyed Behemoth by John Walker 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 war military space-travel exploration first-contact
-
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 invasion space-travel exploration galactic-empire -
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 invasion space-travel exploration galactic-empire -
Operation Liberty by J.N. Chaney, Terry Mixon
Rated: 4.50 of 5 stars · 12 ratingsAliens invaders hold human worlds. That cannot stand.Admiral Jack Romanoff and his crew have defeated the Locusts once and for all, but they are far from the only invaders infesting the Confederation. The time to go after the xenophobic Novarites and free those worlds has come, and nothing will stand in his way.If words aren’t enough, show them your teeth and bite deep...Categorized as:
military space-opera first-contact aliens invasion space-travel exploration galactic-empire -
Clone World by B.V. Larson
Rated: 4.50 of 5 stars · 24 ratingsJames McGill is called upon for a sabotage mission, one that only a man of his unique talents can handle. Unfortunately, he performs too well, and our enemies from Rigel are enraged. They come for us, and war is declared. Both sides call for aid, and it comes from the Core Worlds in the form of two great fleets. The Civil War for the Empire’s Throne spills out into the provinces...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
-
Ice World by B.V. Larson
Rated: 4.55 of 5 stars · 20 ratingsLong before Earth began conquering her neighboring stars, Legion Varus was deployed on Tau Ceti. Valuable and highly illegal treasures were stolen during the campaign, but McGill never gave it a second thought.The Tau haven’t forgotten him, however. For decades they’ve hunted and plotted, and at last they’ve found the pirate who robbed them. Tau agents invade Earth seeking revenge and profit...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
The Colossus by Jay Allan
Rated: 4.50 of 5 stars · 10 ratingsThe 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 colonization exploration first-contact galactic-empire invasion military space-opera -
Galaxy in Peril by Raymond L. Weil
Rated: 4.50 of 5 stars · 10 ratingshe situation in the galaxy is growing desperate. Every day the Vorn are harvesting world after world to be used as food for their Queens. The Vorn ships are nearly indestructible and destroying every fleet that dares to oppose them.Lakiam Fleet Commodore Dreen is trying to form an alliance to try to stop the Vorn, but he needs a victory to bring other Protector Worlds to his side...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
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 colonization exploration first-contact galactic-empire invasion military space-opera -
The Grand Alliance by Jay Allan
Rated: 4.42 of 5 stars · 12 ratingsHell is Unleashed The Hegemony controls Megara, the Confederation’s capital. War has raged for five years. Millions are dead, vast fleets of ships have been destroyed. But in the stronghold where Tyler Barron and his comrades have gathered their allies and the last of their strength, a plan is being devised...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Dauntless by Jay Allan
Rated: 4.36 of 5 stars · 14 ratingsThe pulsar…an ancient weapon of unimaginable power, one that threatens the Confederation with total destruction. The Union is preparing for the final invasion, one that cannot fail with the great artifact at the head of their fleet. The clock is ticking quickly toward midnight. There is a chance to avoid annihilation, a small one...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Kinetic Strike by Rick Partlow
Rated: 4.41 of 5 stars · 25 ratingsThe war made him a hero. Now the Marines need him to be a leader.Cam Alvarez is a Drop-Trooper. A warrior-knight wrapped in the futuristic armor of a high-tech battlesuit, and he’s one of the best. When he’s promoted to sergeant and asked to become a leader, he faces a whole new challenge. The Marines are striking deep into enemy territory and the casualties are mounting...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Leviathan's Fear: A Military Sci-Fi Series by Craig Martelle
Rated: 4.67 of 5 stars · 6 ratingsTrapped 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 colonization exploration first-contact galactic-empire invasion military space-opera -
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 invasion exploration first-contact space-opera space-travel galactic-empire military -
Raven's Flag by Glynn Stewart
Rated: 4.57 of 5 stars · 7 ratingsIn times of peace, alliances wither and are forgotten.In times of war, honor must reforge them in fire and steel!The United Planets Alliance fought the Kenmiri Empire with a hundred allies at their side. Bound in common cause until genocide broke the Kenmiri—and Kenmiri schemes broke the alliance in turn—those one-time allies still left deep debts of blood and friendship behind...Categorized as:
military aliens exploration space-opera invasion galactic-empire colonization space-travel -
-
Darkness Beyond by Glynn Stewart
Rated: 4.41 of 5 stars · 24 ratingsA 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-opera space-travel -
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 colonization exploration first-contact galactic-empire invasion military space-opera -
Junkyard Veterans by Jamie McFarlane
Rated: 4.53 of 5 stars · 17 ratingsWith a price on their heads, grumpy old vets will risk everything to bring alien assassins to justice.Someone is killing off the old team of vets who repelled Earth’s first Korgul invasion. With the end of a war precious few even knew was happening, life’s been peaceful...Categorized as:
aliens colonization exploration first-contact invasion military space-opera space-travel -
Danger Close by Rick Partlow
Rated: 4.39 of 5 stars · 24 ratingsAll Cam Alvarez has known is war.For three years, he’s fought the marauding alien Tahni on one God-forsaken planet after another, leading a squad of armored Drop Troopers.But the war is about to change.Cam is an officer now, fresh out of OCS and taking charge of his old platoon, and things have reached a tipping point...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
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 exploration first-contact galactic-empire invasion military space-opera space-travel -
Oblivion's Light by Raymond L. Weil
Rated: 4.40 of 5 stars · 10 ratingsTwo more years have passed for the Lost Fleets trapped in the Triangulum Galaxy. It’s becoming more apparent with each passing day that the Dyson Sphere of the Simulins must be destroyed if Fleet Admiral Jeremy Strong and his people want to survive. Rear Admiral Kathryn Barnes sets out on a mission of discovery seeking allies against the Simulins...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Genesis by Raymond L. Weil
Rated: 4.40 of 5 stars · 10 ratingsFleet Admiral Jeremy Strong is determined to preserve the planet Gaia as the new home of the lost fleets. Unfortunately, a new and frightening danger from the destroyed Dyson Sphere threatens to undo everything he has fought for. Kazak, the AI on the Originator ship has his own agenda. The Humans and Altons will either do as he demands or he will destroy them...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Winds of Vengeance by Jay Allan
Rated: 4.40 of 5 stars · 10 ratingsEarth Two. A new home for the survivors of the fleet, the men and women who battled against seemingly insurmountable odds to survive the assault of the First Imperium and to destroy the homicidal Regent, the artificial intelligence committed to their destruction...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
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 colonization exploration first-contact galactic-empire invasion military space-opera -
The Dark Invaders 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 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 colonization exploration first-contact galactic-empire invasion military space-opera -
-
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 invasion space-travel exploration galactic-empire -
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 invasion space-travel exploration galactic-empire -
Dark World by B.V. Larson
Rated: 4.35 of 5 stars · 27 ratingsTwo expanding interstellar powers are about to meet in battle. After the collapse of the Cephalopod Kingdom, Humanity claimed the three hundred rebellious worlds they left behind. But many light years away on the far side of disputed region, a rival power has begun to move. They're stealing our planets, one at a time...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Relics of Eternity by Glynn Stewart
Rated: 4.33 of 5 stars · 12 ratingsThe 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-opera space-travel -
Fracture by Ken Lozito, Scott Aiello
Rated: 4.33 of 5 stars · 12 ratingsColonel Sean Quinn is stranded in another universe, along with two thousand people under his command. They've been hiding from the enemy long enough, now it’s time to return home. Outnumbered against a superior foe, Sean must risk everything in a daring operation, but the mysterious enemy has a few surprises of their own...Categorized as:
aliens colonization exploration first-contact invasion military space-opera space-travel -
Direct Fire by Rick Partlow
Rated: 4.41 of 5 stars · 21 ratingsFrom 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 colonization exploration first-contact galactic-empire invasion military space-opera -
Emergence by Ken Lozito, Scott Aiello
Rated: 4.29 of 5 stars · 14 ratingsAs the colony grapples with the realization that New Earth is not as uninhabited as they’d once thought, tensions between the colonial settlements rise to new heights, and the Colonial Defense Force finds itself caught in the middle. When Connor uncovers evidence of a militant colonial faction secretly exploiting the NEIIS, he has to investigate...Categorized as:
aliens colonization exploration first-contact invasion military space-opera space-travel -
Blood World by B.V. Larson
Rated: 4.25 of 5 stars · 16 ratingsA dirty deal was struck. Humanity was allowed to keep three hundred rebellious worlds. In return, we declared war on a powerful enemy from beyond the frontier. A frantic build-up of forces has begun, but the task is hopeless. Seeking allies, Earth’s legions are sent to BLOOD WORLD. A planet on the fringe of known space, where the people only respect masters of combat...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
The Others by Jay Allan
Rated: 4.46 of 5 stars · 17 ratingsFrom 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 colonization exploration first-contact galactic-empire invasion military space-opera -
Echoes of Glory by Jay Allan
Rated: 4.36 of 5 stars · 23 ratingsA Fight to the End… The Confederation and the Union have fought each other to a standstill. Battered, exhausted fleets eye each other warily across a border that has been a battlefield for three bloody years. Neither side has the strength to attack, and both wait for reinforcements that will allow them to resume the fight...Categorized as:
aliens exploration first-contact galactic-empire invasion military space-opera space-travel -
-
Storm World by B.V. Larson
Rated: 4.35 of 5 stars · 23 ratingsJames McGill is sent to the Core Worlds! In an unprecedented first, Earth sends a message to Mogwa Prime. Unfortunately, the messenger is not met with enthusiasm. Misunderstandings soon threaten all of Humanity. Forced to prove Earth can serve the Empire better than any rival, McGill does his best...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Crystals by Jonathan P. Brazee
Rated: 4.50 of 5 stars · 6 ratingsWar with the aliens has broken out, and they seem to have all the advantages. Engineers and scientists are scrambling to develop weapons to stand up to the threat, but when all is said and done, it is the Navy fighter pilots who have to take the fight to the enemy... -
Dark Moon Arisen by Chris Kennedy, Mark Wandrey
Rated: 4.50 of 5 stars · 6 ratingsThe 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 colonization exploration first-contact galactic-empire invasion military space-opera -
Hell's Reach by David VanDyke, B.V. Larson
Rated: 4.50 of 5 stars · 6 ratingsUSA Today bestseller B.V. Larson and Dragon award finalist David VanDyke have released book six in their epic military space opera! The Breakers find a new home among the stars: Utopia. An engineered planet that is vast beyond comprehension with plenty of room to grow. They set up trade routes and work as mercenaries for their supplies… but trouble lurks. Pirates strike their merchant lanes...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military 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 colonization exploration first-contact galactic-empire invasion military space-opera -
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...Categorized as:
aliens colonization first-contact galactic-empire invasion military space-opera book -
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...Categorized as:
aliens exploration first-contact galactic-empire military space-opera space-travel book -
The Line of Duty by Rick Partlow
Rated: 4.50 of 5 stars · 6 ratingsDanger stalks the Republic once again. Raiders hijack their starships, biological weapons slaughter their colonists, and terrorists kill thousands of innocents in their mega-cities…and as the head of Fleet Intelligence, it’s Jason McKay’s job to track down the enemy, whether they’re on a world at the edge of known space or in the midst of a corrupt government...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-travel -
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... -
Stardust by Edward W. Robertson
Rated: 4.50 of 5 stars · 6 ratingsThe invaders have arrived. The last battle for humanity is about to begin. STARDUST is the final book in the Rebel Stars series...Categorized as:
aliens colonization exploration first-contact invasion space-opera space-travel action-adventure -
-
Valkyrie's Daughter by John E. Siers
Rated: 4.50 of 5 stars · 6 ratingsThe 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 colonization exploration first-contact galactic-empire invasion military space-opera -
Junkyard Raiders by Jamie McFarlane
Rated: 4.59 of 5 stars · 12 ratingsDumped 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 colonization first-contact galactic-empire invasion military space-opera action-adventure -
Judgment Day by Rick Partlow
Rated: 4.54 of 5 stars · 13 ratingsWe’ve won a battle…but we’re losing the war.Travis Miller, his image reformed from the moron who screwed up our first contact with aliens to one of the heroes of the Battle for Eden, is given a new assignment: retake the occupied colony of Brigantia. Losing it would be a glancing blow to the Tahni Imperium, but it would Earth’s first solid strike against them, a chance to go on the offensive...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-travel -
The Prisoner of Eldaron by Jay Allan, Mark Boyett
Rated: 4.38 of 5 stars · 8 ratingsThe Search for Erik Cain...The Superpowers of Earth have fought their final war, leaving Earth a devastated ruin, populated only by scattered groups of survivors living in primitive squalor. Out in space, however, humanity moves forward, and the former colonies of Earth's dead nations are now free from the yoke of the despotic governments that had long ruled over them...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera -
Warpath by Ivan Kal
Rated: 4.38 of 5 stars · 8 ratings-NOTE- This book has been professionally re-edited as of April 19, 2016 Thirty years after the events in the Solar system, the Empire had entered a time of expansion and advancement. Six hundred light years from Earth, humanity starts again. But, their safety and peace are threatened when a hostile force is detected in one of the systems close to the Empire's border...Categorized as:
aliens exploration first-contact galactic-empire invasion military space-opera space-travel -
The Last Strike by Peter Bostrom
Rated: 4.38 of 5 stars · 8 ratingsHis son is dead.His ship is dead.His career is dead.But Spectre is very much alive. And with his plans of galactic domination laid bare, Captain James Mattis must gather what allies he can to stop him.Admiral Pippa Spears and the HMS Caernarvon make a mysterious discovery in the wreckage of the USS Stennis, one that could change the outcome of the war...Categorized as:
aliens colonization exploration first-contact galactic-empire invasion military space-opera
Or - use our amazing romance book finder to get recommendations based on your favorite content tropes and themes. Mix and match at will.