Books like 'Exigency'
Readers who enjoyed Exigency by Michael Siemsen also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi action / adventure hard sci-fi space military, war & conflict aliens lgbtq space-travel exploration first-contact
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Tiamat's Wrath by James S.A. Corey
Rated: 4.57 of 5 stars · 48 ratingsThirteen hundred gates have opened to solar systems around the galaxy. But as humanity builds its interstellar empire in the alien ruins, the mysteries and threats grow deeper...Categorized as:
aliens exploration first-contact invasion lgbtq space-travel 21st-century action-adventure -
![A Grimm Sacrifice by Jeffery H. Haskell]()
A Grimm Sacrifice by Jeffery H. Haskell
Rated: 4.50 of 5 stars · 14 ratingsIn order to survive, Interceptor must change the rules.The Consortium is in real trouble. Caliphate Naval forces have stepped up their raids on the border planets and are taking people by the thousands. They can defend the wormhole, or they can defend their planets, not both...Categorized as:
aliens invasion colonization space-travel first-contact exploration sci-fi space-opera -
![Messinants by S.H. Jucha]()
Messinants by S.H. Jucha
Rated: 4.50 of 5 stars · 10 ratingsPyre is a volatile planet. Its surface belches heat and noxious gases, forcing downsiders to inhabit domes. But Pyre’s instability isn’t limited to its geology. The colonists, who were marooned in the system hundreds of years ago, have endured a tumultuous history.Exploring Triton, Pyre’s third moon, spacers inadvertently activate an alien dome...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Secrets in the Stars by Mackey Chandler]()
Secrets in the Stars by Mackey Chandler
Rated: 4.50 of 5 stars · 10 ratingsWhen Lee Anderson and her parents discovered a new world teeming with life, it was the dream of every explorer: they were rich beyond their imaginations. But tragedy struck when a herd of creatures overran their camp and killed her parents. The only other adult in her life had been their partner Gordon, who adopted her as parent. Which didn’t turn out to be easy, because he wasn’t human... -
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![Edge World by B.V. Larson]()
Edge World by B.V. Larson
Rated: 4.48 of 5 stars · 23 ratingsA lonely planet circles a star on the very border of Province 921. Critical resources produced there are claimed by both the Mogwa and the Skay. War between the Galactic giants becomes more likely every day.James McGill and Legion Varus are deployed to protect Edge World, a planet that rotates at a walking pace. Each day is as long as a year back on Earth...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Destroyer by Joshua Dalzelle]()
Destroyer by Joshua Dalzelle
Rated: 4.43 of 5 stars · 24 ratingsA relentless enemy… An old wolf's last hunt… The future of two species hanging in the balance… The Darshik war machine is flagging, but the war is far from over. Even as an exhausted Federation military tenses up for a counterattack after repelling the last Darshik invasion, reports are coming in of a new, more powerful class of ship that's striking deep into Terran space... -
![Iron & Blood by Joshua Dalzelle]()
Iron & Blood by Joshua Dalzelle
Rated: 4.42 of 5 stars · 24 ratingsThe Black Fleet Saga continues… A human planet has been invaded. The enigmatic Darshik have landed troops on a frontier world and have begun subduing major cities even as their blockade repels all attempts by the fledgling United Terran Federation to mount a counteroffensive... -
![Heaven's River by Dennis E. Taylor]()
Heaven's River by Dennis E. Taylor
Rated: 4.30 of 5 stars · 37 ratingsCivil war looms in the Bobiverse in this brand-new, epic-length adventure by best seller Dennis E. Taylor.More than a hundred years ago, Bender set out for the stars and was never heard from again. There has been no trace of him despite numerous searches by his clone-mates. Now Bob is determined to organize an expedition to learn Bender’s fate—whatever the cost... -
![Destiny's Cradle by Paul Crawford]()
Destiny's Cradle by Paul Crawford
Rated: 4.50 of 5 stars · 8 ratingsTeenagers Ben Canterbury and Tessa Nyera are harvesting cotton on a warm afternoon when a hole opens up in a nearby meadow—like the doorway to another dimension. The hole disgorges a naked man, barely conscious and clutching a human leg bone, and then vanishes... -
![Quantum Space by Douglas Phillips]()
Quantum Space by Douglas Phillips
Rated: 4.34 of 5 stars · 30 ratingsThis is an alternate Cover Edition for ASIN: B06ZY9T5Y5.If you liked the authenticity of The Martian, the page-turning pace of Da Vinci Code, and the inspirational world view of Arthur C. Clarke, you'll love Quantum Space.High above the windswept plains of Kazakhstan, three astronauts on board a Russian Soyuz capsule begin their reentry... -
![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... -
![A Deepness in the Sky by Vernor Vinge]()
A Deepness in the Sky by Vernor Vinge
Rated: 4.25 of 5 stars · 43 ratingsAlternative Cover Edition can be found here. After thousands of years searching, humans stand on the verge of first contact with an alien race. Two human groups: the Qeng Ho, a culture of free traders, and the Emergents, a ruthless society based on the technological enslavement of minds.The group that opens trade with the aliens will reap unimaginable riches...Categorized as:
aliens exploration first-contact invasion space-travel 20th-century action-adventure adult -
![Omnia by S.H. Jucha]()
Omnia by S.H. Jucha
Rated: 4.33 of 5 stars · 12 ratingsAlex Racine, who led an elite group of humans and SADEs (self-ware digital entities), left the newly discovered planet of Celus-5 under difficult circumstances. Few of the Harakens with Alex thought there was little he could do to bring peace to the embroiled planet...Categorized as:
aliens exploration first-contact invasion space-travel action-adventure adult audiobook -
![Allora by S.H. Jucha]()
Allora by S.H. Jucha
Rated: 4.33 of 5 stars · 12 ratingsUntil the Confederation created Allora, it had produced SADEs (self-aware digital entities) for hundreds of years with enormous consistency and harnessed their capabilities to power the society. But this particular, young SADE was disturbed by her confinement... -
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![Celus-5 by S.H. Jucha]()
Celus-5 by S.H. Jucha
Rated: 4.33 of 5 stars · 12 ratingsFor the Sojourn’s initial mission, the Haraken explorer ship undertakes the investigation of Celus-5, a world identified by Willem, a SADE (self-aware digital entity), and his team of scientists, as the best prospect for a new colony.What should be a routine survey mission becomes a disaster. To the Harakens’ surprise, they discover, not one, but two alien species engaged in conflict...Categorized as:
aliens exploration first-contact invasion space-travel action-adventure adult audiobook -
![Green World by B.V. Larson]()
Green World by B.V. Larson
Rated: 4.42 of 5 stars · 20 ratingsRebels build a secret base on Green World. Their plan is to attack Earth and retake all the planets the Humans have conquered.Hegemony starships gather to strike the Rebels first, but where is their base? As the fleets search, Earth warships trespass into Skay space igniting a fresh border conflict between rival Galactics...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Haraken by S.H. Jucha]()
Haraken by S.H. Jucha
Rated: 4.29 of 5 stars · 14 ratingsNine years of tranquility came to an abrupt end when a Méridien starship entered the Hellébore system, sounding a dire warning for Alex Racine, the Haraken president. Unwanted visitors had arrived again. But this time, they’re not alien; they’re human... -
![Salvation Lost by Peter F. Hamilton]()
Salvation Lost by Peter F. Hamilton
Rated: 4.30 of 5 stars · 30 ratingsThe comparative utopia of twenty-third century Earth is about to go dreadfully awry when a seemingly benign alien race is abruptly revealed to be one of the worst threats humanity has ever faced. Driven by an intense religious extremism, the Olyix are determined to bring everyone to their version of god as they see it...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Blood World by B.V. Larson]()
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 invasion space-travel action-adventure adult -
![Sol by S.H. Jucha]()
Sol by S.H. Jucha
Rated: 4.35 of 5 stars · 24 ratingsSol’s warships paid the ultimate price for threatening the Haraken and New Terran worlds. Now, Haraken President Alex Racine and his Méridien partner, Renée de Guirnon, are engaged in a desperate gamble to stop a war between their worlds and United Earth’s (UE) massive forces before it starts... -
![Connection Unknown by Michael Chatfield]()
Connection Unknown by Michael Chatfield
Rated: 4.50 of 5 stars · 6 ratingsLuke Tavares has dreamed of joining the vast gaming guilds of the hypernet. After recently graduating high school, his parents have given him the same ultimatum as his siblings; he has one month to get a job to pay for his air, gravity, and water aboard the Dahlia.The freighter needs more hands, but Luke doesn’t want to be a trader-ship engineer...Categorized as:
aliens first-contact invasion space-travel action-adventure book fiction hard-sci-fi -
![Protector by C.J. Cherryh]()
Protector by C.J. Cherryh
Rated: 4.33 of 5 stars · 24 ratingsIt's coming up on Cajeiri's birthday. The boy has been promised he can have the young human children he knew from his voyage sent down from the space station for a two week stay. But there's far a darker business going on in the background--a major split compromising the Assassins' Guild, which furnishes security and law enforcement to the whole continent... -
![Explorer by C.J. Cherryh]()
Explorer by C.J. Cherryh
Rated: 4.30 of 5 stars · 27 ratingsIt has been nearly ten years since the starship Phoenix returned to Alpha, the station orbiting the world of the atevi, which had been abandoned following a rift between a faction of the station's inhabitants and the spacers' Pilot's Guild...Categorized as:
aliens colonization exploration first-contact space-travel action-adventure adult audiobook -
![Tracker by C.J. Cherryh]()
Tracker by C.J. Cherryh
Rated: 4.38 of 5 stars · 20 ratingsTracker is the sixteenth installment of CJ Cherryh's acclaimed Foreigner series.It’s been a year of upheaval, since Bren Cameron’s return from space—a year when he and the aiji-dowager, one of his most powerful atevi allies, returned home from their two-year interstellar mission to find the government overthrown and their world in chaos...Categorized as:
aliens colonization first-contact invasion action-adventure adult audiobook bodyguard -
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![Corvus by Marko Kloos]()
Corvus by Marko Kloos
Rated: 4.50 of 5 stars · 14 ratingsWhen the aliens evolve, so does the threat against humanity in this thrilling sequel to Scorpio that finds Alex Archer in an epic battle of survival against the odds and the alien invaders.Alex Archer is a soldier now, the only civilian survivor from Scorpio to join the NAC Defense Corps... -
![The Long-Range War by Christopher G. Nuttall]()
The Long-Range War by Christopher G. Nuttall
Rated: 4.38 of 5 stars · 8 ratingsThe gloves have finally come off ... The Tokomak, the unquestioned masters of the galaxy, have dispatched a massive fleet to crush the Solar Union - and the fledgling Galactic Alliance - before the human race and its alien allies can tear the galactic order asunder. Hundreds of thousands of starships under the command of an alien tactical genius, bent on exterminating the entire human race .. -
![TFS Fugitive by Tori L. Harris]()
TFS Fugitive by Tori L. Harris
Rated: 4.47 of 5 stars · 15 ratingsHaving successfully repelled the Resistance incursion into the Sol system, Terran Fleet Command must now deal with the far-flung worlds of the Sajeth Collective, which sponsored the attack. Task forces are dispatched to Damara and Lesheera to begin the first Human blockades of entire planets...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Rogue World by B.V. Larson]()
Rogue World by B.V. Larson
Rated: 4.29 of 5 stars · 27 ratingsThe Galactics arrived with their Battle Fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined a vast Empire that spanned the Milky Way. Today, Battle Fleet 921 is returning to Earth. It hasn’t been seen by human eyes since our blissful day of Annexation...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Intruder by C.J. Cherryh]()
Intruder by C.J. Cherryh
Rated: 4.31 of 5 stars · 24 ratingsThe civil war among the alien atevi has ended. Tabini-aiji, powerful ruler of the Western Association, along with Cajeiri his son and heir, and his human paidhi, Bren Cameron, have returned to the Bujavid, their seat of power.But factions that remain loyal to the opposition are still present, and the danger these rebels pose is far from over... -
![Divergence by C.J. Cherryh]()
Divergence by C.J. Cherryh
Rated: 4.30 of 5 stars · 10 ratingsThe twenty-first book in the beloved Foreigner saga continues the adventures of diplomat Bren Cameron, advisor to the atevi head of state... -
![Betrayer by C.J. Cherryh]()
Betrayer by C.J. Cherryh
Rated: 4.31 of 5 stars · 23 ratingsBetrayer (Foreigner, Book 12)The twelfth novel in Cherryh’s Foreigner space opera series, a groundbreaking tale of first contact and its consequences…In the wake of civil war, Bren Cameron, the brilliant human diplomat of the alien atevi civilization, has left the capital and sought refuge at his country estate, Najida...Categorized as:
aliens exploration first-contact invasion space-travel action-adventure adult audiobook -
![TFS Navajo by Tori L. Harris]()
TFS Navajo by Tori L. Harris
Rated: 4.25 of 5 stars · 12 ratingsOnly a few short months after Humanity’s first interstellar flights, the first shots have been fired in what will eventually become known as the Alliance Wars. Terran Fleet Command teeters on the edge of chaos in the aftermath of Chairwoman Crull’s removal from power, while in space, Earth’s defense falls squarely on the shoulders of Admiral Kevin Patterson...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Battleship Indomitable by David VanDyke, B.V. Larson]()
Battleship Indomitable by David VanDyke, B.V. Larson
Rated: 4.25 of 5 stars · 12 ratingsFrom Hugo Award finalist David VanDyke and million-selling science-fiction legend B.V. Larson comes book two in the epic military space opera adventure saga!Commodore Straker's rebellion grows in strength--but his enemies are growing even faster...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Earth Fleet by B.V. Larson]()
Earth Fleet by B.V. Larson
Rated: 4.25 of 5 stars · 12 ratingsAt long last Earth has a handful of starships. Surrounded by Rebel Kher, Imperials and the mysterious Nomads, Humanity dares to assert our right to independence. The interstellar community reacts harshly. In the eyes of our neighbors, we’re upstarts, dangerous beings that don’t know our place. For the Kher, freedom can only be won through battle...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
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![Deep Black (Infinite Sky #1) by Samuel Best]()
Deep Black (Infinite Sky #1) by Samuel Best
Rated: 4.25 of 5 stars · 12 ratingsTwo crews return to Titan. Who will survive?Titan. Sixth moon of Saturn. A deadly enigma harboring the greatest secret in the history of humankind.In the wake of the first mission, two companies with very different goals plot a return to that distant moon. Their ships are safer, their technology has improved…and they want answers... -
![TFS Theseus by Tori L. Harris]()
TFS Theseus by Tori L. Harris
Rated: 4.21 of 5 stars · 14 ratings“Welcome to the Pelaran Alliance …” With those simple words, the Guardian spacecraft openly revealed itself to Humanity, heralding a new chapter in its 500-year-long mission to cultivate our world...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Méridien by S.H. Jucha]()
Méridien by S.H. Jucha
Rated: 4.21 of 5 stars · 14 ratingsThe Méridiens are fleeing to their far colonies—and they have reason to run. Over the course of decades, they have lost hundreds of ships, billions of people, and seven Confederation colonies to an alien enemy: an advancing swarm of silver ships transported in the bowels of a gigantic, spherical vessel... -
![The Human by Neal Asher]()
The Human by Neal Asher
Rated: 4.21 of 5 stars · 14 ratingsA warship is laying waste to the galaxy, making for unexpected allies in the face of incredible acts of war. This is the high-octane conclusion to Neal Asher's Rise of the Jain trilogy.An entire galaxy hangs in the balance.A Jain warship has risen from the depths of space, emerging with a deadly grudge and a wealth of ancient yet lethal technology... -
![Into the Stars by James Rosone]()
Into the Stars by James Rosone
Rated: 4.21 of 5 stars · 14 ratingsThe stars are within mankind’s reach……But what awaits in the void may end humanity…Mars and the Moon have been colonized, piracy runs rampant in the asteroid belts, and a thriving society grows in the depths of space. Humanity prepares to embark upon its greatest journey—the colonization of Alpha Centauri... -
![Prelude to Extinction by Andreas Karpf]()
Prelude to Extinction by Andreas Karpf
Rated: 4.21 of 5 stars · 14 ratingsEarth's first interstellar mission -- An alien colony in ruins -- Their fight for survival has only just begun.When Jack Harrison climbed down the short ladder from the airlock and stepped onto the debris covered soil, the ground crackled with the sound of dried leaves and twigs... -
![Home World by B.V. Larson]()
Home World by B.V. Larson
Rated: 4.27 of 5 stars · 26 ratingsThe Galactics arrived with their Battle Fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined a vast Empire that spanned the Milky Way. When the Earth is invaded by a rival empire, James McGill’s legion must defend the Home World. The top brass has complex plans, but none of that matters much to McGill, who chooses his own unique path...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Unidentified: A Science-Fiction Thriller by Douglas E. Richards, Dan Bittner]()
Unidentified: A Science-Fiction Thriller by Douglas E. Richards, Dan Bittner
Rated: 4.19 of 5 stars · 16 ratingsUFOs are real. When Jason Ridley discovers their shocking agenda, his actions will either transform humanity...or destroy it entirely. Unidentified details the actual evidence that UFOs are here, while offering a mind-blowing fictional take on the reasons why. A riveting pause-resister packed with nonstop action, epic ideas, and astonishing twists... -
![Invaders by Laurence E. Dahners]()
Invaders by Laurence E. Dahners
Rated: 4.42 of 5 stars · 15 ratings“Invaders” is about events that occur several years after those in the novel “Disc.” GSI (Gettnor Space Industries) is beginning to investigate our solar system and mine the asteroids. Aircraft and automobile companies are beginning to switch over to thrusters from their more traditional products. New uses for thrusters are popping up in the healthcare and sports industries... -
![Wizard by John Varley]()
Wizard by John Varley
Rated: 4.15 of 5 stars · 20 ratingsISBN moved from less recent editionOne of the greatest science fiction epics ever written, John Varley's Titan, Wizard, and Demon comprise a groundbreaking trilogy that will live forever. Human explorers have entered the sprawling mind of Gaea. Now they must fight her will. For she is much too powerful...and definitely insane.. -
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![Orion Fleet by B.V. Larson]()
Orion Fleet by B.V. Larson
Rated: 4.26 of 5 stars · 24 ratingsWhat enemy could be more terrifying than a soulless, alien machine? A year ago the Kher Empire was forced to retreat, but they were not beaten. In ORION FLEET they return with a new weapon. A huge ship driven by AI begins methodically grinding inhabited worlds to dust. This unstoppable enemy is without fear or remorse, and the Rebels begin a desperate battle just to slow its advance...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![Emergence by C.J. Cherryh]()
Emergence by C.J. Cherryh
Rated: 4.34 of 5 stars · 17 ratingsThe nineteenth book in C.J. Cherryh's beloved Foreigner space opera series begins a new era for diplomat Bren Cameron, as he navigates the tenuous peace he has struck between human refugees and the alien atevi.Alpha Station, orbiting the world of the atevi, has taken aboard five thousand human refugees from a destroyed station in a distant sector of space...Categorized as:
aliens colonization first-contact invasion action-adventure adult audiobook bodyguard -
![1st to Fight by Rick Partlow]()
1st to Fight by Rick Partlow
Rated: 4.42 of 5 stars · 13 ratingsI retired from the USMC, and now I write about space marines. I never thought I’d actually become one. As a sci-fi author with a hit TV show, I have a few ideas about what alien invaders are supposed to look like. In my stories, they’re technologically advanced monsters, with tentacles, and no faces. Turns out I was right about the technology. And about how angry they’d be...Categorized as:
aliens exploration first-contact invasion space-travel action-adventure adult audiobook -
![Rendezvous with Rama by Arthur C. Clarke]()
Rendezvous with Rama by Arthur C. Clarke
Rated: 4.08 of 5 stars · 42 ratingsAn all-time science fiction classic, Rendezvous with Rama is also one of Clarke's best novels--it won the Campbell, Hugo, Jupiter, and Nebula Awards. A huge, mysterious, cylindrical object appears in space, swooping in toward the sun. The citizens of the solar system send a ship to investigate before the enigmatic craft, called Rama, disappears...Categorized as:
aliens exploration first-contact invasion space-travel 20th-century action-adventure adult -
![Demon Star by B.V. Larson, David VanDyke]()
Demon Star by B.V. Larson, David VanDyke
Rated: 4.25 of 5 stars · 23 ratingsThree stars, three worlds, three civilizations…one massive war. In a triple star system, not all planets are equal. When the DEMON STAR swings closest in her orbit, the Insectoids always invade. They raid the inner worlds with grim regularity, riding hordes of stealthed ships in ever growing waves. Their mission is to destroy all opposition—alien, human or otherwise...Categorized as:
aliens colonization exploration first-contact invasion space-travel action-adventure adult -
![The Seasoning by Dennis Ingram]()
The Seasoning by Dennis Ingram
Rated: 4.33 of 5 stars · 6 ratingsSurprise. Adversity. Hope. Sixteen years have passed since the eight crew of the Starship Hope arrived in the Tau Ceti system and established a colony on the fifth planet from the star, a planet they named Serendipity. Their colony has thrived. Together with their children they have turned their habitat into a paradise and begun to terraform the planet...Categorized as:
colonization exploration space-travel action-adventure adult book fiction hard-sci-fi
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