Books like 'Threshold'
Readers who enjoyed Threshold by Eric Flint & Ryk E. Spoor also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi space hard sci-fi action / adventure space-opera time-travel aliens
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The Saints of Salvation by Peter F. Hamilton
Rated: 4.40 of 5 stars · 31 ratingsHumanity is struggling to hold out against a hostile takeover by an alien race that claims to be on a religious mission to bring all sentient life to its God at the End of Time. But while things may look grim in the immediate aftermath of the attack, mankind is busy playing an even longer game than the aliens may have expected... -
![A Hop, Skip and a Jump by Mackey Chandler]()
A Hop, Skip and a Jump by Mackey Chandler
Rated: 4.50 of 5 stars · 10 ratingsLee has a lot going for her, tons of money, true friends who will stand by her, an unexpected bonus of extended life from advanced medial treatments, and a start at unraveling some of the pesky secrets in the stars. But there is so much to do to take advantage of all these opportunities that she's overwhelmed. Keeping all they've gained may not be easy... -
![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... -
![Quantum Void by Douglas Phillips]()
Quantum Void by Douglas Phillips
Rated: 4.31 of 5 stars · 16 ratingsEight months after the astounding discoveries made at Fermilab… Particle physics was always an unlikely path to the stars, but with the discovery that space could be compressed, the entire galaxy had come within reach. The technology was astonishing, yet nothing compared to what humans encountered four thousand light-years from home... -
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![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 Evolutionary Void by Peter F. Hamilton]()
The Evolutionary Void by Peter F. Hamilton
Rated: 4.28 of 5 stars · 38 ratingsExposed as the Second Dreamer, Araminta has become the target of a galaxywide search by government agent Paula Myo and the psychopath known as the Cat, along with others equally determined to prevent-- or facilitate --the pilgrimage of the Living Dream cult into the heart of the Void... -
![Empaths by S.H. Jucha]()
Empaths by S.H. Jucha
Rated: 4.40 of 5 stars · 10 ratingsCaptain Jessie Cinders faces a hazardous choice. The murderer of the governor’s nephew stands before him. But, the frightened teenager, Aurelia Garmenti, doesn’t resemble the commandant’s description of the vicious, hardened killer his security forces seek.To complicate matters, Jessie’s mind has felt Aurelia’s mental powers... -
![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... -
![The Neutronium Alchemist 1: Consolidation by Peter F. Hamilton]()
The Neutronium Alchemist 1: Consolidation by Peter F. Hamilton
Rated: 4.35 of 5 stars · 26 ratingsHumanity is in incredible peril. The minds of those long dead are taking over the bodies of the living, in increasingly alarming numbers. Joshua Calvert is desperately trying to recover a "doomsday weapon", an instrument that might blast the dead back into oblivion--but in the wrong hands, it could mean the end of the human race... -
![Conspirator by C.J. Cherryh]()
Conspirator by C.J. Cherryh
Rated: 4.29 of 5 stars · 14 ratingsFirst in a brand-new "Foreigner" trilogy from Hugo Award winning author C. J. Cherryh. Cajeiri is the young son of the powerful leader of the Western Association-and he has become a target for forces bent on destroying his father's rule. For Cajeiri is the first "ateva" youth to have lived in a human environment... -
![De Oppresso Liber by Evan Currie]()
De Oppresso Liber by Evan Currie
Rated: 4.29 of 5 stars · 14 ratingsThe war may be over, but the fighting continues as SOLCOM learns of an excursion by the Ross'El against an unaffiliated pre-space civilization in the no man's land between Earth and the Alien Alliance. With always more questions than answers, SOLCOM dispatches a ship to quietly survey the situation and determine what, if any, course of action is best... -
![Open Arms by Evan Currie]()
Open Arms by Evan Currie
Rated: 4.29 of 5 stars · 14 ratingsWith the war officially over, and years of fighting weighing on her, Sorilla has officially put in her papers and called in every chit she's owed. It's time to hang up her power armor, lay down her rifle, and try to build something for herself rather than for other people. The War, however, is only over when the powers that be say it is... -
![The Naked God 1: Flight by Peter F. Hamilton]()
The Naked God 1: Flight by Peter F. Hamilton
Rated: 4.33 of 5 stars · 27 ratingsThis breathtaking climax to the acclaimed saga of "The Reality Dysfunction" and "The Neutronium Alchemist" finds the Confederation on the verge of collapse, as more and more star systems fall to the Possessed. An alien god may hold the solution to the crisis--if Joshua and Syrinx can discover it in time... -
![The Technician by Neal Asher]()
The Technician by Neal Asher
Rated: 4.25 of 5 stars · 16 ratingsThe Theocracy has been dead for 20 years, and the Polity rules on Masada. But the Tidy Squad consists of rebels who cannot accept the new order. Their hate for surviving theocrats is undiminished, and the iconic Jeremiah Tombs is at the top of their hitlist... -
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![Polity Agent by Neal Asher]()
Polity Agent by Neal Asher
Rated: 4.22 of 5 stars · 18 ratingsFrom eight hundred years in the future, a runcible gate is opened into the Polity and those coming through it have been sent specially to take the alien maker back to its home civilization in the Small Magellanic cloud. Once these refugees are safely through, the gate itself is rapidly shut downbecause something alien is pursuing them. The gate is then dumped into a nearby sun... -
![The Temporal Void by Peter F. Hamilton]()
The Temporal Void by Peter F. Hamilton
Rated: 4.24 of 5 stars · 38 ratingsThe Intersolar Commonwealth is in turmoil as the Living Dream's deadline for launching its Pilgrimage into the Void draws closer. Not only is the Ocisen Empire fleet fast approaching on a mission of genocide, but also an internecine war has broken out between the post-human factions over the destiny of humanity... -
![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... -
![Peacemaker by C.J. Cherryh]()
Peacemaker by C.J. Cherryh
Rated: 4.36 of 5 stars · 21 ratingsAt last—Cajeiri has his young guests from the starship, three young folk entranced by weather and trees and creatures with minds of their own. It’s all he dreamed of.. -
![The Last Dancer by Daniel Keys Moran]()
The Last Dancer by Daniel Keys Moran
Rated: 4.38 of 5 stars · 8 ratingsThe Manhattan-based Unification government controls the earth, but rebellion brews in Occupied America as the American Revolution's tricentennial approaches... -
![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 .. -
![March Upcountry by David Weber, John Ringo]()
March Upcountry by David Weber, John Ringo
Rated: 4.17 of 5 stars · 24 ratingsPrince Roger MacClintock is a spoiled young princeling hardly worth the space he takes up. Now he must become a man, or the entire galaxy will suffer arrested adolescence... -
![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... -
![Unstable Prototypes by Joseph R. Lallo]()
Unstable Prototypes by Joseph R. Lallo
Rated: 4.30 of 5 stars · 10 ratingsFollowing his last adventure, Trevor "Lex" Alexander's life has managed to return to normal. He's back to splitting his time between delivering packages and transporting passengers, along with the occasional foray into testing highly experimental equipment... -
![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... -
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![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... -
![Le jardin quantique by Derek Künsken]()
Le jardin quantique by Derek Künsken
Rated: 4.20 of 5 stars · 15 ratingsThe stunning, critically-acclaimed follow-up to best-selling The Quantum Magician THE ULTIMATE CHASE Days ago, Belisarius pulled off the most audacious con job in history. He’s rich, he’s back with the love of his life, and best of all, he has the Time Gates, arguably the most valuable things in existence... -
![Valkyrie Rising by Evan Currie]()
Valkyrie Rising by Evan Currie
Rated: 4.19 of 5 stars · 16 ratingsTwo years after the initial invasion of Hayden's World, the newly reinforced Hayden Militia is in a state of stalemate with the remaining enemy forces but neither side is content to leave things at that.The alien alliance has dispatched their varsity to clean up the resistance on Hayden while the USF has officially activated Task Force V, the latest and most advanced combat ships built by humans... -
![Diamond Mask by Julian May]()
Diamond Mask by Julian May
Rated: 4.19 of 5 stars · 16 ratingsThe 21st century was drawing to a close, and metapsychic humankind was poised at last to achieve Unity to be admitted into the group mind of the already unified alien races of the Galactic Milieu. But a growing corps of rebels was plotting to keep the people of Earth forever separate in the name of human individuality...Categorized as:
aliens space-opera time-travel action-adventure adult anthologies cyberpunk female-author -
![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...Categorized as:
aliens space-opera action-adventure book disability fiction first-contact hard-sci-fi -
![Jack the Bodiless by Julian May]()
Jack the Bodiless by Julian May
Rated: 4.17 of 5 stars · 18 ratingsIn the year 2051, Earth stood on the brink of acceptance as full member of the Galactic Milieu, a confederation of worlds spread across the galaxy. Leading humanity was the powerful Remillard family, but somebody--or something--known only as "Fury" wanted them out of the way...Categorized as:
aliens space-opera time-travel action-adventure anthologies cyberpunk female-author fiction -
![The Gap Into Madness: Chaos and Order by Stephen R. Donaldson]()
The Gap Into Madness: Chaos and Order by Stephen R. Donaldson
Rated: 4.16 of 5 stars · 19 ratingsAs the planetoid Thanatos Minor explodes into atoms, a specially-fitted cruiser escapes the mass destruction and hurtles into space only a step ahead of hostile pursuit. On board Trumpet are a handful of bedraggled fugitives from an outlaw world, old enemies suddenly and violently thrown together in a desperate bid for survival... -
![Tales of Known Space: The Universe of Larry Niven by Larry Niven, Rick Sternbach]()
Tales of Known Space: The Universe of Larry Niven by Larry Niven, Rick Sternbach
Rated: 4.16 of 5 stars · 19 ratingsRanging from the 20th Century to the 31st, these interconnected stories trace Man's expansion and colonization throughout the galaxy...Becalmed in hellHowie's spaceship had a malfunction...but it might be only psychosomatic!Wait it outHe was trapped on Pluto...and all his assets were frozen!The borderland of SolForward possessed the ultimate weapon..Categorized as:
aliens space-opera action-adventure adult anthologies fiction hard-sci-fi solar-system -
![Howling Dark by Christopher Ruocchio]()
Howling Dark by Christopher Ruocchio
Rated: 4.26 of 5 stars · 24 ratingsThe second novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fire.Hadrian Marlowe is lost. For half a century, he has searched the farther suns for the lost planet of Vorgossos, hoping to find a way to contact the elusive alien Cielcin... -
![Accord of Honor by Kevin O. McLaughlin]()
Accord of Honor by Kevin O. McLaughlin
Rated: 4.33 of 5 stars · 6 ratingsWar over energy resources devastated the Earth and her colony on the moon. A new agreement was reached between the nations of the world: The Lunar Accord. Designed to end the possibility of war in space for all time, it bars nations or individuals from arming ships in space. Twenty peaceful years have passed since the Accord was signed... -
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![The Shaman of Karres by Eric Flint, Dave Freer]()
The Shaman of Karres by Eric Flint, Dave Freer
Rated: 4.33 of 5 stars · 6 ratingsCaptain Pausert just can’t catch a break! First, he became the mortal enemy of his fiancée, his home planet, the Empire—and even the Worm World, the darkest threat to mankind in all of space. All because he helped rescue three slave children from their masters... -
![The Infinity Brigade #1 Stone Cold by Andrew Beery]()
The Infinity Brigade #1 Stone Cold by Andrew Beery
Rated: 4.33 of 5 stars · 6 ratingsDeath of a World/Birth of a Marine... By any reasonable definition, this was a bad day. My parents and sister were on Mars when the planet died. I watched it happen and could do nothing. That type of thing changes a man...Categorized as:
aliens space-opera time-travel action-adventure audiobook book fiction genetic-engineering -
![Magnificat by Julian May]()
Magnificat by Julian May
Rated: 4.22 of 5 stars · 26 ratingsThe eagerly awaited finale of a modern SF classic--May's Galactic Milieu Trilogy, which began with Jack the Bodiless and continued with Diamond Mask. The mystery involving Jack the Bodiless, the metaphysically talented Dorothea, and Fury, the insane metaphysic creature determined to become sole ruler over all humankind, explodes anew...Categorized as:
aliens space-opera time-travel action-adventure adult anthologies cyberpunk female-author -
![Espero by S.H. Jucha]()
Espero by S.H. Jucha
Rated: 4.17 of 5 stars · 12 ratingsTrouble infiltrated the Harakens’ capital city of Espero, in the form of New Terra criminal gangs who grew wealthy and powerful on the moons of Ganymede, hiding behind the cover of an ill-conceived mining charter. The gangs brought stims and addictive hallucinogenic drugs to Espero, distributing them to the young on the planet... -
![A Gift of Time by Jerry Merritt]()
A Gift of Time by Jerry Merritt
Rated: 4.13 of 5 stars · 16 ratingsWhen Micajah Fenton discovers a crater in his front yard with a broken time glider in the bottom and a naked, virtual woman on his lawn, he delays his plans to kill himself. While helping repair the marooned time traveler’s glider, Cager realizes it can return him to his past to correct a mistake that had haunted him his entire life... -
![The Gap Into Power: A Dark and Hungry God Arises by Stephen R. Donaldson]()
The Gap Into Power: A Dark and Hungry God Arises by Stephen R. Donaldson
Rated: 4.11 of 5 stars · 19 ratingsA master storyteller, Stephen R. Donaldson established a worldwide reputation with his unforgettable, critically acclaimed fantasy series The Chronicles Of Thomas Covenant. Then, with The Real Story and Forbidden Knowledge, he launched a thrilling new science fiction series. Now the galactic epic continues as humanity struggles against the forces of ultimate evil--and its own dark nature... -
![Gust Front by John Ringo]()
Gust Front by John Ringo
Rated: 4.10 of 5 stars · 20 ratingsThanks to human valor and alien technology, the Posleen were fought to a standstill. But the invasion of Earth is just months away Only these shell-shocked survivors can save the Earth from utter devastation... -
![Neutron Star by Larry Niven]()
Neutron Star by Larry Niven
Rated: 4.08 of 5 stars · 25 ratingsCome to Larry Niven's Universe and meet all the natives: Thrints, Bandersnatchi, Puppeteers -- and a host of other wonderfully created characters.Visit Lookitthat, Down, and Jinx -- indeed, an entire galaxy of planets found only in these stories that trace man's expansion and colonization throughout Known Space.A spectacular cycle of the future . . -
![Heirs of Empire by David Weber]()
Heirs of Empire by David Weber
Rated: 4.09 of 5 stars · 17 ratingsRestoring the empire that had been destroyed 45,000 years earlier, Emperor Colin finds problems in the genocidal Achuultani and in his children Sean and Harriet, who have been marooned on a hostile planet...Categorized as:
aliens space-opera action-adventure adult alternate-history anthologies audiobook fiction -
![The Gangster by Scott Sigler]()
The Gangster by Scott Sigler
Rated: 4.50 of 5 stars · 8 ratingsTHE GANGSTER is the sixth book in the Galactic Football League series.The ongoing mental battle between star quarterback Quentin Barnes and team owner Gredok the Splithead is coming to a head. Endless threats and the promise of ultraviolence hangs on their every word... -
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![Claws That Catch by John Ringo, Travis S. Taylor]()
Claws That Catch by John Ringo, Travis S. Taylor
Rated: 4.16 of 5 stars · 26 ratingsIt's Not Over Til The Skinny Lady Sings . . . Working off of a piece of intelligence from the alien Hexosehr, the Vorpal Blade is dispatched to investigate rumors of an ancient and powerful civilization that may have been the creators of the “black box” that drives humanity's only space ship... -
![Fuzzy Sapiens by H. Beam Piper]()
Fuzzy Sapiens by H. Beam Piper
Rated: 4.16 of 5 stars · 25 ratingsAre Fuzzies People?Pendarvis' Decision had finally declared the Fuzzies to be intelligent beings, and that meant some drastic changes for the Earthmen who had colonized their planet, changes that a lot of people weren't going to accept easily. But why worry? said others.The Fuzzies seemed lovable, fun-loving creatures, only two feet high, and covered with soft, golden fur... -
![Blowback by Kristine Kathryn Rusch]()
Blowback by Kristine Kathryn Rusch
Rated: 4.13 of 5 stars · 8 ratingsThe Moon, shaken by the Anniversary Day tragedies, deals with devastation. The Earth Alliance believes another attack imminent, but no one knows where or when it will strike. Just like no one knows who ordered the attacks in the first place.The Moon’s chief security office, Noelle DeRicci, does her best to hold the United Domes government together... -
![Henry Gallant and the Warrior by H. Peter Alesso]()
Henry Gallant and the Warrior by H. Peter Alesso
Rated: 4.13 of 5 stars · 8 ratingsIn the 22th Century, the people of the Solar System have banded together against an alien invasion. Unfortunately, they’re losing—badly. As the only Natural remaining in the genetically engineered officer corps of the United Planet’s fleet, Henry Gallant has unique mental abilities that have proven essential to the defense against the Titan invaders... -
![The Long Road Home by Christopher G. Nuttall]()
The Long Road Home by Christopher G. Nuttall
Rated: 4.13 of 5 stars · 8 ratingsIn the wake of the Solar Union’s stunning victory over the Tokomak - the masters of the galactic community - humanity has been invited to send a diplomatic mission to the Kingdom of Harmonious Order, one of the oldest and most significant races in known space. It is an opportunity that cannot be missed, a chance to forge ties with a powerful ally... -
![The Deep Beyond: Cuckoo's Egg / Serpent's Reach (Union-Alliance Universe) by C.J. Cherryh]()
The Deep Beyond: Cuckoo's Egg / Serpent's Reach (Union-Alliance Universe) by C.J. Cherryh
Rated: 4.11 of 5 stars · 9 ratingsTwo of Cherryh's stand-alone SF novels--including the Hugo Award finalist "Cuckoo's Egg"--are now available in this omnibus volume. Original.Cuckoo's EggThey named him Thorn. They told him he was of their people, although he was so different. He was ugly in their eyes, strange, sleek-skinned instead of furred, clawless, different...
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