Book picks similar to
Enigma (The Belt, #4) by Gerald M. Kilby


science-fiction
sci-fi
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Monolith (The Transcended #6)


Anthony James - 2019
    It works unseen, sending out vast entropy factories to construct machines of war for a single purpose: to bring extinction. Now, these spaceships are converging on human territory. The Confederation is worn down by endless conflict, its warfleet depleted and its armies stretched. Humanity never gives in. Two of the Space Corps’ top officers - Joe Nation and Becky Keller - are determined to fight for as long as it takes, in a battle which will lead them to alien places and to spaceships fitted with incredible weapons. The coming conflict will offer them a fleeting glimpse into the designs of an entity so powerful it might as well be a god. For Nation and Keller, the things they learn ensure nothing will ever be the same again. Monolith is a high-action science fiction adventure involving massive space battles, overwhelming odds and exciting technologies. It continues the Transcended series and picks up straight after book 5: Void Blade.

The Pike Chronicles Books 1-8 - A Space Opera Adventure


G.P. Hudson - 2020
     "An epic space opera adventure" The 1st 8 hit space operas from The Pike Chronicles. Book 1: Sol Shall Rise The Sol System was conquered and humans lived as slaves for 500 long years. Now, after years of brutal warfare, humanity has been liberated. Liberation, however, comes at a cost, and the Sol System has become nothing more than a puppet state for a vast galactic empire. For Jon Pike, a war hero who has lost everything, there is no substitute for freedom. He blames the aliens for humanity’s troubles, especially the one living inside him. But when he is sent on a top secret mission into unexplored regions of the galaxy he discovers that humanity’s troubles are just getting started. Can he find freedom for himself and humanity? Book 2: Prevail A battle weary Captain fighting for redemption. An impossible search for a scattered crew. Marines pushed beyond their limits. A heinous alien race bent on annihilation. When all is lost, a brave few dare to hope, and continue to fight for freedom. Do they struggle in vain? Or will they prevail? Book 3: Ronin A tenuous alliance. A brazen power play. A looming alien threat. A planet's future held in the balance. In a galaxy where danger waits at every turn, will former enemies be doomed by their past? Or can they fight together in the name of freedom? Book 4: Ghost Fleet A planet surrounded. A homeland in peril. A fleet outgunned. A prophecy to fulfill. With half the galaxy on the brink, can a fledgling alliance offer hope? Or is it doomed to perish in the pyres of war? Book 5: Interstellar War A homeland in ashes. A merciless ancient enemy. A vicious new foe. A galaxy convulsing with war. With humanity on the brink of annihilation, only one option remains, Interstellar War. Can Jon Pike achieve victory, and revenge, for himself and humanity? Book 6: Vanquish The battle for humanity has just begun A brutal attack. A deadly alliance. An alien conspiracy. A galactic invasion. As the prophecy unfolds, Jon Pike discovers that everything is not as it seems. With his life and the fate of the galaxy hanging in the balance, can Jon Pike survive long enough to vanquish his enemies? Or will a new dark age descend, yet again, on what's left of humanity? Book 7: Galactic War A devastating invasion. A supremely powerful enemy. A journey into the unknown. The future of the galaxy hanging in the balance. The Erinyie have returned, and despair is spreading throughout the galaxy. Admiral Jon Pike and his forces are helpless against this new, all powerful enemy. Desperate to find help, Jon Pike is forced to undertake a perilous journey, to find the fabled builders of the jump gates. Will he and his team succeed in their quest? Or will the galaxy once again be plunged into darkness? Book 8: Armada A devastated galaxy. A mythical quest fulfilled. Mysterious new friends. Ruthless enemies. A young Emperor finding his way.

Storming Heaven (War of the Gods, #1)


Christopher G. Nuttall - 2012
    Now, the human race has spread through countless star systems, but remains hopelessly inferior to the Killers. The god-like aliens are systematically driving humanity to the verge of extinction.Desperate times need desperate measures and humanity launches a crazy plan, to board and seize a Killer starship, hoping to unlock their technology. But the Killer plan to rebuild the universe from scratch is well underway, leaving humanity at the verge of total extinction. If they fail, the Killers will be the only form of life remaining in the entire universe…

The Super Olympian: Mystic Warrior (Shapechanger Tales)


Laer Carroll - 2012
    But Olympic gold medalist Sasha Canaro hides that side of herself. Publicly she is merely a high-paid fashion model and occasional consultant to police, who call her The Bloodhound. Then she meets a billionaire industrialist who may be another immortal shapechanger. Or something even stranger. And the woman has a job for Sasha.

Children of Earthrise: Books 1-3


Daniel Arenson - 2018
    Our planet is lost. We are the last humans, and we must go home. Children of Earthrise is a story of exodus. Of humanity lost among the stars. Of one man rising to lead our people home. In 2016, the Earthrise series became a surprise bestseller, captivating hundreds of thousands of readers around the world. Set two thousand years later, Children of Earthrise begins a new story, one for both new readers and old fans. This bundle includes the first three Children of Earthrise novels: The Heirs of Earth, A Memory of Earth, and An Echo of Earth.

Iron Legion Battlebox


David Ryker - 2019
    Just One Dollar. James 'Red' Maddox was born in a cloning tube for one purpose: to work. That's all his life offers, just the prospect of decades of back-breaking labor until he dies. That's until a Federation dropship touches down on Genesis-526. Suddenly hard labor doesn't seem so bad, because the Federation Ground Corps needs fresh meat. And they don't take no for an answer... The problem, in Red's eyes, is their 7% survival rate. Until he's offered a lifeline - the Mech Corps. They're the elite. The first in and last out of every fight, piloting twenty foot tall steel beasts of war. But no tuber has ever made it into the Corps, and they want to keep it that way. The instructors want him out, the other recruits want him gone, and they'll stop at nothing to make sure it happens. Red's about to find out that he's jumped from the frying pan straight into the fire. And over the course of four books and more than 1,000 pages, he'll be forced to battle fellow recruits, aliens, the Federation's greatest enemies, and eventually, the Federation itself... Box Set includes: 1. Recruit 2. Soldier. 3. Hunter. 4. Warrior

Battle Lines


Chris Hechtl - 2015
    But he returned changed, he had lost one of his AI to rampancy after fighting an Xeno AI Wraith, and his greatest AI, his confidant Commander Sprite had chosen to leave him. He didn't return to civilization alone however. He brought with him over a hundred precious sleepers, officers and enlisted personnel ready to help rebuild the Federation once more, along with petabytes of precious blueprints and data, designed by some of the greatest minds of the Federation. But before they can begin to forge a new fleet they have to stop the rampaging Horathian Empire in it's tracks. Rear Admiral Amadeus White has been assigned to push the enemy back and keep them back while Admiral Irons and Subert work on building new ships. Admiral Subert has his own problems to deal with in Pyrax. He needs time, time to adjust, time to clean up the mess. Time to build more ships. But the enemy within and without won't wait. Napoleon said it best, "You can ask me for anything but not time!" The Battle Lines have been drawn!

Kaine's Sanction


D.M. Pruden - 2022
    Hayden Kaine, a brash young cadet, thinks his family's influence has guaranteed his destiny as a future leader of the Earth Confederation. But falling on the wrong side of an Admiral is never a good idea, and he soon finds himself posted to an outdated military starship at the farthest reaches of the galaxy.What at first appears to be a routine mission turns south when an unforseen disaster traps Kaine and the crew of the Scimitar at the edge of charted space, with no means to return home.Little do they appreciate the dangers that lurk in the dead system, and soon they find themselves fighting an unknown alien species, not only for their survival, but for the future of the empire itself.

Hunter, Warrior, Commander


Andrew Maclure - 2018
    A young Hunter. A vow of vengeance. Sah Lee survives the assault that destroys her planet. Can she survive the hostile alien army she joins to get her revenge? Hunter, Warrior, Commander is a military space opera. If you like characters that you can get to know and care about, alien armies, intense upfront and personal action and a story that you won’t want to put down, then you’ll love this. Are you ready for a sleeples night? You won't want to put this down! Hunter, Warrior, Commander is a standalone book set in the People’s universe, introduced in Unwilling From Earth by the same author.

Tempered: A Space Opera Military Adventure


T.S. Paul - 2019
     Casey Lewis led the best Special Operations unit in all of the Confederation until it betrayed her. Taking revenge, she expected to die in a blaze of glory and gunfire but that was not to be. Now she's Chef of the Navy and it's her job to teach, tutor, and investigate each and every kitchen in the fleet. On her own terms. When she accidentally uncovers a plot against not only the battleship she's on but the Confederation as a whole, all hell breaks loose. Bad Casey is back and she's not fooling around this time! ***This book contains bad language, sexual situations, violence, more violence, and a whole lot of innuendo. No actual Chefs were harmed in the making of this book.

The Galactic Sentinel: Ultimate Edition - 1500+ Pages - 4 Books - And More


Killian Carter - 2020
    

Star Bourne (Star Man #1)


I.G. Roberts - 2016
    When he wakes, he is in another place and, it seems, another time. Colin is a very long way from home, on the Ship FNS Destiny with no way to return. When he visits the devastated colony of Zafar, he becomes a changed man, a man with a new purpose in life. Pirates attacking planets and Star-Ships quickly show him the universe is not the friendly place he once thought it was. The idea that people who are as technologically advanced as these will be peaceful and benevolent is only partly true. These Aliens must still maintain a military to defend themselves against their enemies. After pirates attack the ship he is travelling on, the entire command structure is out of action, leaving only Colin to guide the repairs and help the crew steer the ship safely back to home port. Along the way he must rescue innocent civilians from the pirates and help the Federation of Sentient Peoples (FSP) to survive. He learns that the very actions he must take to save the ship and crew could also see him branded a pirate if he is successful. While the FSP is by no means a utopian society, its leaders are smart enough to know they are in trouble and who they should ask for help. Can Colin save the ship and her crew? If he does, will the Federation authorities put him in prison for doing so?

Six Seconds (Adrian Tarn)


E.R. Mason - 2020
    Adrian Tarn and R.J. Smith are persuaded to escort two scientists to a landing there to investigate. What they find has unexpected consequences for Earth and every person on it. Join Adrian Tarn, R.J. Smith, and Danica Donoro as they fight to close Pandora's box before Earth becomes a new asteroid belt.

Agents of the Planetary Republic Books 1-10


Jaxon Reed - 2021
    Treaties are signed, trade is restored. But spies and diplomatic turmoil lead to a high-tech cold war of epic proportions. Ex Space Marine Gina Wilcox finds herself in a law enforcement career after the war, but life can be just as dangerous on the streets as the battlefield. Sleeper cells activate, assassinating government officials. Crime syndicates flourish. And a certain high-tech android has been stolen by the League, spirited off world for unknown purposes. Into this milieu a band of Marine outcasts join the fight. They spent more time in the brig than on the battlefield, yet racked up admirable wartime kill ratios. These renegades are quietly recruited by Republican Naval Intelligence to lead black ops against the League. Gina Wilcox will join their leader Commander Hamilton Wolf in a risky interstellar quest to retrieve an android who doesn’t even realize she’s not human. The fate of two civilizations hangs in the balance . . .

Space Rogues Omnibus 1: Books 1-3


John Wilker - 2019
    Collecting the awesome adventures of Wil Calder and the crew of the Ghost, this omnibus edition also includes two short stories; 'Merry Garthflak, Wil' and 'Date Night' Enjoy the rip-roaring adventure of Books 1-3 all in one edition.