Books like 'Without Mercy'
Readers who enjoyed Without Mercy by Eric Thomson also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi space action / adventure military, war & conflict war military space-opera female-mc aliens invasion
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She is the Principle: A Kurtherian Gambit Series by Michael Anderle
Rated: 4.83 of 5 stars · 6 ratingsA teenage boy with a terminal condition, a group of school bullies, and an incognito Empress with a short temper…Kirian Larsen knows he won’t live to see adulthood. Dex and his gang only care that he’s a human living on “their” planet.Their determination to make his life harder bothers Kirian less than their efforts to do the same for their other victims... -
![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... -
![Anvil Dark by J.N. Chaney, Terry Maggert]()
Anvil Dark by J.N. Chaney, Terry Maggert
Rated: 4.54 of 5 stars · 21 ratingsThe guild is under attack, and Van is right in the middle of it all.When Master Yewlo is abducted by unknown forces, the Peacemakers are thrown into chaos as the rescue mission begins. Finding Yewlo will be hard, but the search reveals secrets the guild might not survive—secrets about a system so corrupt, it will take Van and his team’s best efforts to untangle the truth...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![When Words Fail by J.N. Chaney, Jonathan P. Brazee]()
When Words Fail by J.N. Chaney, Jonathan P. Brazee
Rated: 4.56 of 5 stars · 9 ratingsThe Galaxy is growing...and it's more dangerous than ever before.An all-out war within humanity has been narrowly avoided, and peace is finally at hand.Yeah, right.Human ships are being taken, their crews disappearing... -
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![Livesuit by James S.A. Corey]()
Livesuit by James S.A. Corey
Rated: 4.33 of 5 stars · 18 ratingsHumanity's war is eternal, spread across the galaxy and the ages. Humanity's best hope to end the endless slaughter is the Livesuit forces. Soldiers meld their bodies to the bleeding edge technology, becoming something more than human for the duration of a war that might never end.The first novella set in the universe of James S. A. Corey's epic Captive's War series... -
![Forged in Flame by Michael R. Hicks]()
Forged in Flame by Michael R. Hicks
Rated: 4.50 of 5 stars · 10 ratingsThis is the second book of the First Empress saga, following From Chaos Born.Keel-Tath, the child who would unite her people as foretold by an ancient prophecy, has grown to be a young warrior in the confines of the Desh-Ka temple, where she has been sheltered by her old friend and mentor Ayan-Dar from the clutches of Syr-Nagath, the Dark Queen... -
![The Grand Conspiracy by J.N. Chaney, Terry Mixon]()
The Grand Conspiracy by J.N. Chaney, Terry Mixon
Rated: 4.50 of 5 stars · 10 ratingsKeep your friends close.After successfully striking back at the alien invaders, Commodore Jack Romanoff and his crew have liberated the cluster capital at Argent. For the first time, it seems like they might be getting their feet back underneath them.Keep your enemies closer...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Turning Point by Jason Anspach, Nick Cole]()
Turning Point by Jason Anspach, Nick Cole
Rated: 4.53 of 5 stars · 20 ratingsFight to Win. With the galaxy in turmoil, the Legion initiates Article Nineteen, a hard reset designed to halt the corruption and ineptitude that continues to spill forth from the Galactic Core. But when the House of Reason aligns itself with the bloodthirsty zhee extremists, the Legion has no choice but to commit to a savage campaign of Total War...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Children of Angels by J.N. Chaney, Jonathan P. Brazee]()
Children of Angels by J.N. Chaney, Jonathan P. Brazee
Rated: 4.44 of 5 stars · 25 ratingsThe war has only just begun.While rescuing a world from Centaur control, the Marines discover that not all humans on the planet are slaves. The Children of Angels believe their masters have been sent by the gods to lift up mankind.Humanity now has two enemies, one from the farthest reaches of the Galaxy and the other from within...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Legacy of Stars by J.N. Chaney, Terry Maggert]()
Legacy of Stars by J.N. Chaney, Terry Maggert
Rated: 4.59 of 5 stars · 17 ratingsThere are some things you simply can’t escape. For Van, it’s family.Out among the stars, his cousin, Carter Yost, drags Van and his team into a criminal ring run by the High Doctor- a dangerous con artist with delusions of grandeur. Working from the abandoned world of Pathway, the High Doctor has created a cult, stealing a fortune from the fearful, sick, and scared...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Duchess of Terra by Glynn Stewart]()
Duchess of Terra by Glynn Stewart
Rated: 4.42 of 5 stars · 26 ratingsWhen 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... -
![Terra and Imperium by Glynn Stewart]()
Terra and Imperium by Glynn Stewart
Rated: 4.44 of 5 stars · 23 ratingsSecrets 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... -
![The Terran Privateer by Glynn Stewart]()
The Terran Privateer by Glynn Stewart
Rated: 4.31 of 5 stars · 16 ratingsEarth 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... -
![Darkness Beyond by Glynn Stewart]()
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 galactic-empire invasion military space-fleet space-opera war action-adventure -
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![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...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![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... -
![Warrior King by Evan Currie]()
Warrior King by Evan Currie
Rated: 4.35 of 5 stars · 29 ratingsBattle-weary after a desperate fight to save Earth from the Drasin alien onslaught, Confederation Captain Eric Weston is tasked with a perilous new mission. He and the crew of the Odysseus must hunt down those who unleashed the hellish attack on his homeworld and that of Earth’s Priminae allies... -
![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 galactic-empire invasion military space-fleet space-opera war action-adventure -
![Galactar by Anthony James]()
Galactar by Anthony James
Rated: 4.40 of 5 stars · 10 ratingsFollowing 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Fulcrum Gun by Anthony James]()
Fulcrum Gun by Anthony James
Rated: 4.40 of 5 stars · 10 ratingsLost 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Laws of Ancidium by Anthony James]()
Laws of Ancidium by Anthony James
Rated: 4.40 of 5 stars · 10 ratingsHaving 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Archangel Rising by Evan Currie]()
Archangel Rising by Evan Currie
Rated: 4.39 of 5 stars · 23 ratingsArchangel Squadron faces off against the forces of the brutal Protectorate to claim a prize, and save humanity, in a gripping novel of deep space jeopardy by the author of the Odyssey One series. At the helm of a commandeered freighter, Captain Steph Michaels has infiltrated the Free Star systems...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Relics of Eternity by Glynn Stewart]()
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 galactic-empire invasion military space-fleet space-opera war action-adventure -
![Exile by Glynn Stewart]()
Exile by Glynn Stewart
Rated: 4.31 of 5 stars · 13 ratingsA shackled Earth, ruled by an unstoppable tyrantAn exiled son, and a one-way trip across the galaxyA perfect world, their last hope for survivalVice Admiral Isaac Gallant is the heir apparent to the First Admiral, the dictator of the Confederacy of Humanity. Unwilling to let his mother's tyranny stand, he joins the rebellion and leads his ships into war against the might of his own nation... -
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![The Valhalla Call by Evan Currie]()
The Valhalla Call by Evan Currie
Rated: 4.25 of 5 stars · 16 ratingsIn The Valhalla Call we bring the Hayden War Arc that began in On Silver Wings to its startling conclusion. Newly minted Lieutenant Sorilla Aida has a new mission and new allies, gear, and support as she is tasked with a job that could ensure that the human race stands a chance of reaching a technical parity with the mysterious alien alliance... -
![By Other Means by Evan Currie]()
By Other Means by Evan Currie
Rated: 4.25 of 5 stars · 16 ratingsThe Hayden War has ended and now SOLCOM and the Alliance are face to face in talks, but neither side has the slightest idea what happened in the ultimate battle of the war... -
![The Others by Jay Allan]()
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 galactic-empire invasion military space-fleet space-opera war action-adventure -
![The Dragonback Series Books 4–6: Dragon and Herdsman, Dragon and Judge, Dragon and Liberator by Timothy Zahn]()
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 ratingsThe 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... -
![Acheron Redemption by Ken Lozito]()
Acheron Redemption by Ken Lozito
Rated: 4.50 of 5 stars · 6 ratingsSentinel 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Star Force: Dawn of the Apocalypse by Aer-ki Jyr]()
Star Force: Dawn of the Apocalypse by Aer-ki Jyr
Rated: 4.50 of 5 stars · 6 ratingsThe onslaught has begun and the galaxy must cope with a very slow moving certainty of its eventual destruction... -
![Star Force: Reclaimers by Aer-ki Jyr]()
Star Force: Reclaimers by Aer-ki Jyr
Rated: 4.50 of 5 stars · 6 ratingsDoes 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 -
![Odysseus Awakening by Evan Currie]()
Odysseus Awakening by Evan Currie
Rated: 4.31 of 5 stars · 26 ratingsDefy the inevitable. Such is the stance of Confederation captain Eric Weston and the crew of the starship Odysseus, patrolling the outer limits of Priminae space, anticipating the Empire’s next attacks. Connected with the Terran FTL tech—the transition drive—humanity might stand a chance against the overwhelming forces. Until the entire planetary system goes dark...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![War Eternal, Books 1-3 by M.R. Forbes]()
War Eternal, Books 1-3 by M.R. Forbes
Rated: 4.38 of 5 stars · 8 ratings3 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Lucky Revenge by Joshua James]()
Lucky Revenge by Joshua James
Rated: 4.38 of 5 stars · 8 ratingsThe universe if FUBAR. Just when things couldn't get any worse, humanity finds a way. The invasion force is in shambles. The universe is on fire. An ancient enemy is about to end mankind for good. Sgt. Lucky Lee Savage saw it all coming. He warned all the right people. He took all the right steps. Look what that got him... -
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![Red Team Alpha by Jay Allan]()
Red Team Alpha by Jay Allan
Rated: 4.38 of 5 stars · 8 ratingsA New Adventure Set in the Crimson Worlds Universe (Over 800,000 Crimson Worlds Book Sold) Red Team Alpha. An elite military unit. Twenty highly-trained veteran warriors, Mars’ best. They are ready to face whatever dangers threaten the Confederation. They are capable, dedicated, armed with the best technology Mars has to offer. And they don’t exist, at least not officially... -
![Lucky Empire by Joshua James]()
Lucky Empire by Joshua James
Rated: 4.38 of 5 stars · 8 ratingsMankind's luck has run out... As humanity rushes toward universal slaughter, the last Marine standing in the way of extinction is the least qualified one around — just ask him. With the conspiracy now fully in power, Lucky & Co. have turned into fugitives within the Empire... -
![Empires in Ruin by Anthony James]()
Empires in Ruin by Anthony James
Rated: 4.38 of 5 stars · 8 ratingsProtected 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 galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Out of the Black by Evan Currie]()
Out of the Black by Evan Currie
Rated: 4.26 of 5 stars · 30 ratingsDeep in blackest space, the Drasin have watched humanity’s journey to the stars—and determined that a species as barbaric as ours has no place in the cosmos.The wreckage of the starship Odyssey, once Earth’s greatest guardian, lies strewn across New York City. Abandoned by all but its captain, Odyssey’s sacrifice covered the withdrawal of countless troops as the Drasin assault ravaged the planet... -
![A Federation Forged in Fire by Stephen W. Bennett]()
A Federation Forged in Fire by Stephen W. Bennett
Rated: 4.30 of 5 stars · 10 ratingsWhen the enemy discovers their hidden home, Mirikami is forced to lead 117 Kobani ships in a desperate attack against 3,000 Krall ships and uncounted warriors. Armed with a 22,000-year-old computer virus, and sheer courage, they must disable every enemy ship and weapon. The last time this tactic was tried against them, the Krall eradicated the entire Olt’kitapi civilization...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![The Crucible by Richard Fox]()
The Crucible by Richard Fox
Rated: 4.34 of 5 stars · 21 ratingsThe Xaros broke against Earth's defenses, but the war may be lost.The alien ships of former allies rule Earth's skies, threatening to obliterate cities and turn the planet into a barren wasteland if humanity refuses their demands. With their backs to the wall, the scattered crew of the Breitenfeld must work together to foil the enemy's plan before time runs out...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Point of Origin by M.R. Forbes]()
Point of Origin by M.R. Forbes
Rated: 4.25 of 5 stars · 12 ratingsA starship lost. A creator found. A frantic race to save them both. For Colonel Mitchell “Ares” Williams, there is no giving up. There is no going back. The Goliath may have fallen into enemy hands, but the war must go on. After all, he and the Riggers have what they need to locate the Creator, the man responsible for the alien threat and the key to unraveling their unstoppable attack...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Eyes of Tomorrow by Glynn Stewart]()
Eyes of Tomorrow by Glynn Stewart
Rated: 4.44 of 5 stars · 15 ratingsAn ancient power unleashed from its prison.Fleets summoned by oaths old and new alike.A rising tide of war that may consume the galaxy!Captain Morgan Casimir’s mission to stop a war has ended in a nightmare. In the heart of an ignored nebula, trapped behind a ring of newborn stars, she has awoken a creature of another time: the horde of biological starships who call themselves the Infinite...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Shadows of the Fall by Glynn Stewart]()
Shadows of the Fall by Glynn Stewart
Rated: 4.44 of 5 stars · 14 ratingsFifty thousand years ago, the Precursors broke the universe. Now great powers and small alike fight over their wreckage. But in the midst of the chaos, there is a question no one asks… Why?Morgan Casimir, commander of the A!Tol Imperial cruiser Defiant, has seen the works of the Precursor aliens known as the Alava. She has seen their accidents threaten worlds and consume entire star fleets...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![For Honor We Stand by H. Paul Honsinger]()
For Honor We Stand by H. Paul Honsinger
Rated: 4.24 of 5 stars · 28 ratingsIn 2315, the Earth Union is losing a thirty-year-long war with the Krag Hegemony.Having encountered the Krag before, Space Commander Max Robicheaux now faces daunting challenges aboard the USS Cumberland: the dangers from the enemy without… and clashes with crew and superiors within... -
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![Firestorm by D.J. Holmes]()
Firestorm by D.J. Holmes
Rated: 4.49 of 5 stars · 12 ratingsFour peaceful years have passed since the liberation of Haven. Captain James Somerville has taken his command, the heavy cruiser Titan, to Earth for a much-needed refit. As he is there, shocking news arrives from the American colonies. Unknown ships have attacked a remote colony. Nuclear missiles have devastated the planet’s surface leaving almost no survivors...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Scorpion’s Fury by C.H. Gideon, Caleb Wachter]()
Scorpion’s Fury by C.H. Gideon, Caleb Wachter
Rated: 4.33 of 5 stars · 6 ratingsMechanized Warfare on a Galactic Scale An 80-ton scorpion’s deadly sting. Firepower and mobility have been the Armor Corps’ key to success for over two-hundred years. The crew. Criminals freed from prison. Cannon fodder. Metal heads, thieves, and murderers.When the museum relic is called back to service, the crew gives Elvira all the love she needs...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera war action-adventure -
![Star Force: Essence by Aer-ki Jyr]()
Star Force: Essence by Aer-ki Jyr
Rated: 4.33 of 5 stars · 6 ratingsThe ever-growing peace and order in the galaxy has nearly run its course as a new series of events begin to take shape. Buckle your seat belt, Dorothy, because Kansas is going bye bye..Categorized as:
aliens galactic-empire military space-fleet space-opera action-adventure book fiction -
![Star Legions: The Ten Thousand Complete Series Box Set (Books 1 - 7) by Michael G. Thomas]()
Star Legions: The Ten Thousand Complete Series Box Set (Books 1 - 7) by Michael G. Thomas
Rated: 4.33 of 5 stars · 6 ratings*** RELEASE DISCOUNT 50% OFF *** They are an unstoppable force of mercenaries from every known Terran planet in the Galaxy. They have little in common, other than their love of wealth and adventure, and a bitter hatred for each other. Known simply as the Black Legion, they will blaze a trail of death and destruction that will be remembered for generations... -
![Star Force: Enlightenment by Aer-ki Jyr]()
Star Force: Enlightenment by Aer-ki Jyr
Rated: 4.33 of 5 stars · 6 ratingsThe day of the Zak'de'ron's leaving is here at last..Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure adult -
![Star Force: Scorpion by Aer-ki Jyr]()
Star Force: Scorpion by Aer-ki Jyr
Rated: 4.33 of 5 stars · 6 ratingsKara's fate is determined along with the revelation of the Zak'de'ron's true nature, forcing Star Force to list the Dragons as a future enemy while pretending all is normal in the present...Categorized as:
aliens galactic-empire invasion military space-fleet space-opera action-adventure book
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