Books like 'The Catalyst'
Readers who enjoyed The Catalyst by Chris Reher also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
sc-fi romance space action / adventure space-opera aliens second-chances female-mc military galactic-empire
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Compete by Vera Nazarian
Rated: 4.47 of 5 stars · 29 ratingsIt's one thing to Qualify…But do you have what it takes to Compete?With Earth about to be destroyed by an extinction level asteroid, teenage nerd, geek, and awkward smart girl Gwen Lark, and a few of her friends and loved ones, barely Qualified for rescue onboard one of the thousands of ark-ships headed to the ancient colony planet Atlantis...Categorized as:
aliens galactic-empire military space-opera action-adventure audiobook book colonization -
![Stolen Legacy by Lindsay Buroker]()
Stolen Legacy by Lindsay Buroker
Rated: 4.50 of 5 stars · 12 ratingsEven though Captain Jelena Marchenko has Starseer talents, such as telepathy and telekinesis, she has grown up feeling ostracized by the Starseer community. She longs for an opportunity to prove that she deserves a place among them. When an old friend of the family shows up, seeking transportation to the site of an ancient Starseer relic, Jelena believes this may be her chance to prove herself...Categorized as:
aliens female-mc first-contact galactic-empire space-opera action-adventure audiobook book -
![The Akseli by Dianne Duvall]()
The Akseli by Dianne Duvall
Rated: 4.50 of 5 stars · 12 ratingsSimone has hunted and slain psychotic vampires night after night for hundreds of years and desperately needs a change. When the leader of the Immortal Guardians offers her an opportunity to guard ten mortal women who are venturing to another planet, she dives right in and finds traveling into space and meeting amazing alien races just as exciting as she'd hoped… until an enemy attacks... -
![Tyrant by Richard F. Weyand]()
Tyrant by Richard F. Weyand
Rated: 4.71 of 5 stars · 7 ratingsThe Council Revolt has started. The Council has struck at the Throne.As the Council plots to place their own candidate on the Throne, a single survivor is dragged out of the fires burning in the Imperial Residence.Hoping to take advantage of the capital’s chaos, enemies internal and external move against the Empire... -
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![End Game by Lindsay Buroker]()
End Game by Lindsay Buroker
Rated: 4.44 of 5 stars · 27 ratingsAlisa Marchenko has reunited with her daughter, and even though she hasn’t figured out how to get Jelena to accept Leonidas yet, she dreams of the three of them starting a new life together. They can return the Star Nomad to its original purpose of running freight and staying out of trouble (mostly)...Categorized as:
female-mc galactic-empire military space-opera action-adventure adult audiobook book -
![Rebel by Jenny Schwartz]()
Rebel by Jenny Schwartz
Rated: 4.42 of 5 stars · 12 ratingsLife is complicated along the Hadrian Line. Decisions made on the border will decide the fate of the entire Human Sector.Nora is adjusting to her new role as a player in the games of the powerful. She's gained some interesting enemies and some even more dubious allies. She has also been presented with a unique opportunity, courtesy of Jonah... -
![Cajole by Jenny Schwartz]()
Cajole by Jenny Schwartz
Rated: 4.42 of 5 stars · 12 ratingsIf life on the border was complicated, life on Capitoline is insane. Nora and Liam struggle to reconcile her abilities and his duty, while caught up in the dangerous games of the powerful.Political intrigue, family drama, and ancient alien technology combine in the fourth novel of the Human Sector... -
![Conqueror by Richard F. Weyand]()
Conqueror by Richard F. Weyand
Rated: 4.57 of 5 stars · 7 ratingsANOTHER INTERSTELLAR WAR!The Empire has won the war against the Alliance. But at the close of that war, an invasion fleet from the Democracy of Planets sought to annex Jasmine. So Jasmine annexed to Sintar, and Sintar destroyed that fleet, causing resentment that is driving the Democracy of Planets to go to war with Sintar.The Democracy of Planets is a much more deadly enemy than the Alliance... -
![Reformer by Richard F. Weyand]()
Reformer by Richard F. Weyand
Rated: 4.57 of 5 stars · 7 ratingsTHE EMPIRE NEEDS A REFORMERThe Sintaran Empire rules three hundred trillion subjects on 150,000 planets. Two trillion of them are government employees. Ruling over this vast bureaucracy is the Imperial Council. It’s only check: The Empress, whose every decree is binding law.The uneasy balance of power between the Council and the Throne is eroding... -
![Usurper by Richard F. Weyand]()
Usurper by Richard F. Weyand
Rated: 4.57 of 5 stars · 7 ratingsTHE REFORMS MUST CONTINUEAt the age of twenty-seven, Deanna Dunham Garrity has become the Empress of Sintar, absolute ruler of 150,000 worlds and their 300 trillion inhabitants. She would continue the reforms of her predecessor, but the Imperial Council stands in her way... -
![King of Eon by Anna Hackett]()
King of Eon by Anna Hackett
Rated: 4.59 of 5 stars · 15 ratingsThe King of the Eon Warriors has decided to take a Terran as his bride…but finds himself shockingly attracted to the tough, beautiful Space Corps officer in charge of his potential brides’ security.King Gayel Solann-Eon is dedicated to his people and empire. His father was a hard man and a rigid king, but Gayel is doing things his own way... -
![The Ceph Sector by Jenny Schwartz]()
The Ceph Sector by Jenny Schwartz
Rated: 4.50 of 5 stars · 8 ratingsThe legendary Ceph have been in stasis for forty two millennia. In a century, they’ll wake. History remembers them as an unstoppable force, employing a mysterious power to decimate sentient life on the planets they attacked. Jaya’s first mission as a new Shaman Justice is to lead an expedition into the perilous Ceph Sector...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
![Combust by Tana Stone]()
Combust by Tana Stone
Rated: 4.50 of 5 stars · 8 ratingsThe Drexian warrior is brooding and mysterious--and he's claimed me as his tribute.When I don't marry his nephew, I have no idea I'm still promised to Zoran's clan. Imagine my shock when the dark and imposing alien informs me that he will be taking me as his tribute bride--and taking me back to the Drexian home world with him... -
![Perilous Hunt by Lindsay Buroker]()
Perilous Hunt by Lindsay Buroker
Rated: 4.35 of 5 stars · 28 ratingsAfter failing to catch up with her daughter Jelena so many times, Alisa's optimism is battered, but her determination has never waned. She, Leonidas, and their eclectic crew are hunting down a Starseer research station in the heart of the Kir Asteroid belt—Jelena's supposed location. Alisa vows that she will find her daughter if she has to search a million asteroids to do so...Categorized as:
female-mc galactic-empire military space-opera action-adventure adult alpha-mc audiobook -
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![Guardian by Anna Hackett]()
Guardian by Anna Hackett
Rated: 4.41 of 5 stars · 23 ratingsRescued from alien slavers, former cop Dayna wakes to discover she’s host to a powerful alien symbiont, and the only man who can help her is the mysterious and dangerous casino owner, Rillian... -
![Space Rodeo by Jenny Schwartz]()
Space Rodeo by Jenny Schwartz
Rated: 4.40 of 5 stars · 10 ratingsOn the galactic frontier, the Federation’s wildest (and most scientific) citizens have gathered to ride in the Space Rodeo. The Navy’s in charge—of the arena. But beyond the naval perimeter, there is only Interstellar Sheriff Max Smith to keep the peace. Fortunately, he has some extraordinary allies. And enemies. And then, there is his girlfriend...Categorized as:
aliens female-mc galactic-empire space-opera action-adventure adult book colonization -
![Between Worlds by J.L. Williams]()
Between Worlds by J.L. Williams
Rated: 4.40 of 5 stars · 10 ratingsInspired by the likes of James Galloway's Subjugation and John Scalzi's Old Man's War, Between Worlds is a thrilling military sci-fi set in a strange new universe...Jason had thought about punching a Shil’vati...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
![Lost: A Christmas Novella by Jenny Schwartz]()
Lost: A Christmas Novella by Jenny Schwartz
Rated: 4.40 of 5 stars · 10 ratingsMerry Christmas, son. Don’t come home. Stuck on Central Transit Station, Sergeant Ryan Dabrowski receives a Dear John letter from his family. The home he fought to protect doesn’t want him. He’s left too much of his body out among the stars. The aug-doctors patched him up better than new, but cyborg freaks aren’t welcome on Earth.“Don’t ruin your sister’s life...Categorized as:
space-opera soldiers galactic-empire first-contact military sci-fi fiction paranormal -
![Transcendence by G.S. Jennsen]()
Transcendence by G.S. Jennsen
Rated: 4.33 of 5 stars · 12 ratingsWhat does it mean to be human? What if the price of saving humanity is giving up your own? The year is 2322, and we stand upon the precipice of extinction. The invading Metigen armada has decimated the eastern third of settled space in a matter of days, leaving tens of millions dead...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
![Kiss of Eon by Anna Hackett]()
Kiss of Eon by Anna Hackett
Rated: 4.38 of 5 stars · 23 ratingsWhen the vital alliance between Earth and the Eon Empire depends on her playing war games with an arrogant, infuriating Eon warrior, what could go wrong? Terran Captain Allie Borden has her orders. Take her ship, the Divergent, and strengthen the alliance with the Eon by carrying out training exercises with the Eon warship, the Desteron... -
![Heart of Eon by Anna Hackett]()
Heart of Eon by Anna Hackett
Rated: 4.37 of 5 stars · 23 ratingsOkay, maybe hijacking an alien commander’s warship wasn’t her best idea… Genius computer geek Wren Traynor prefers her high-tech comp lab to socializing with people, and she definitely prefers it over crawling through the bowels of the huge Eon warship she’s hijacked... -
![Confederation by Michael R. Hicks]()
Confederation by Michael R. Hicks
Rated: 4.25 of 5 stars · 16 ratingsIn the second book of the In Her Name science fiction & fantasy series, Reza Gard has been banished from the Kreelan Empire and is once again a stranger in a strange land as he returns to the human Confederation. Befriended by a marooned Confederation naval officer leading a desperate fight against the Kreelans on a distant colony world, she reunites Reza with Nicole Carré...Categorized as:
aliens first-contact galactic-empire military space-opera action-adventure adult book -
![Mark of Eon by Anna Hackett]()
Mark of Eon by Anna Hackett
Rated: 4.38 of 5 stars · 21 ratingsOil and water. Fire and ice. Terran space marine and rugged alien warrior.Space marine Lieutenant Jamie Park has a reputation as tough as steel...just the way she likes it. A horrible childhood and her marine training have forged her into a strong woman, and she's never seen a fight she'd back down from... -
![Rubicon by G.S. Jennsen]()
Rubicon by G.S. Jennsen
Rated: 4.50 of 5 stars · 6 ratings“We are you—the you that you could have been.”The Anaden Directorate has ruled Amaranthe for millennia, subjugating species and galaxies in a neverending quest for control and order. For as many millennia, the anarchs have rebelled, defiantly claiming their own freedom yet without hope of winning it for everyone...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
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![Relativity by G.S. Jennsen]()
Relativity by G.S. Jennsen
Rated: 4.50 of 5 stars · 6 ratings“I’d tell you to be careful, but we wouldn’t be here if you’d ever taken that advice. No reason to start now, right?”For millennia the Anadens have ruled the known universe. They believe they’ve crafted the perfect empire, ordered and impervious to challenge. They believe the fight has been crushed out of the species they subjugate. They are wrong.It’s a suicide mission, without a doubt...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
![So'Lan by Alana Khan]()
So'Lan by Alana Khan
Rated: 4.50 of 5 stars · 6 ratingsBrutalized as a gladiator, So'Lan's body has finally healed, but his mind is still heavy with the weight of the many abuses he suffered in his owner’s dungeon. Can a gorgeous human pirate help him salvage the wreck that is his heart?PhoenixTempting but broken, So'Lan has baggage I want no part of. Each time he saves my life, I find myself reconsidering the hunky lion-man's appeal...Categorized as:
female-mc aliens first-contact galactic-empire forced-proximity sci-fi space fiction -
![Keran's Dawn by Regine Abel]()
Keran's Dawn by Regine Abel
Rated: 4.50 of 5 stars · 6 ratingsFor the people and the crown.When Dawn took over the management of the Braxian hybrid shelter on the sanctuary planet Haven, she never thought its last days would be marked by a series of gruesome murders against its patrons. With local law enforcement failing to capture the murderer, she makes a desperate plea for help to the Braxian Crown Prince, Keran Xeldar... -
![Capital Games by R.K. Thorne]()
Capital Games by R.K. Thorne
Rated: 4.43 of 5 stars · 7 ratingsTwo months have passed since Commander Ellen Ryu did the impossible and rescued mercenary Kael Sidassian—along with his mysterious cargo. Now the crew of Audacity is stronger than ever, protecting the galaxy against the abuse of technology...Categorized as:
space-opera soldiers galactic-empire military sci-fi slow-burn space action-adventure -
![Taking Vengeance by Cynthia Sax]()
Taking Vengeance by Cynthia Sax
Rated: 4.38 of 5 stars · 8 ratingsThe only force stronger than their hate is their love. Vengeance hates all humans. They killed every being he ever cared about. When the huge C Model cyborg is told he’s genetically compatible with the enemy, he makes it his mission to capture the female and use her to expel all humans from his home planet. That should be disappointingly easy. She’s a weak, fragile human... -
![Dark Ambitions by Michelle Diener]()
Dark Ambitions by Michelle Diener
Rated: 4.38 of 5 stars · 8 ratingsIt's been months since Rose McKenzie was taken far from Earth. She's trying to make a place for herself amongst the Grih, with help from her Grihan lover, Captain Dav Jallan, and the dangerous and loyal Sazo, a powerful artificial intelligence who's integrated with an infamous Class 5 battleship... -
![Lyel by Ava Ross]()
Lyel by Ava Ross
Rated: 4.38 of 5 stars · 8 ratingsAn alien warrior seeking redemption meets a captured Earth woman being treated as a pet. Will their love survive in a hostile world?Kidnapped by four-armed, blue skinned aliens, Isabelle "Isi" is sold to the head of the Al'kieern kidnapping operation. Isi has accepted she'll live and die as a songbird pet to the queen. If nothing else, performing for the Al'kieern beats being sold as a breeder...Categorized as:
aliens female-mc galactic-empire military soldiers space-opera abuse action-adventure -
![Sidespace by G.S. Jennsen]()
Sidespace by G.S. Jennsen
Rated: 4.38 of 5 stars · 8 ratingsHumanity is saved. But its troubles are just beginning. To achieve their extraordinary triumph over the invading Metigen armada, humanity put aside its myriad of political and social conflicts and united against a common foe intent on annihilating civilization. In victory, unparalleled peace and prosperity are theirs for the taking—if they can keep hold of them...Categorized as:
aliens first-contact galactic-empire military soldiers space-opera action-adventure adult -
![Dragon's Heart by Miranda Martin]()
Dragon's Heart by Miranda Martin
Rated: 4.38 of 5 stars · 8 ratingsKate has had enough. Her research pod went down after the Generation ship crashed and now she's stuck on the steaming hot hell that is Tajss. The handful of people that survived initial contact with the planet's monstrous creatures have been forced underground into darkness. Worse is Annabel, self-appointed tyrannical leader of their small group...Categorized as:
aliens female-mc first-contact galactic-empire action-adventure adult book colonization -
![Peace Maker by Michelle Diener]()
Peace Maker by Michelle Diener
Rated: 4.38 of 5 stars · 8 ratingsFliss knows all about her ancestors, the Travelers, who were forced to land on Fjern thousands of years ago, but when it comes to the Gyr—the enhanced warriors who protect the people of Fjern from the monsters that inhabit the planet—she’s in the dark, even though she is one herself...Categorized as:
aliens space-opera female-mc galactic-empire romance sci-fi action-adventure paranormal -
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![Doubt by Jenny Schwartz]()
Doubt by Jenny Schwartz
Rated: 4.33 of 5 stars · 23 ratingsAlien mysteries. Parental responsibilities. The scout ship Kangaroo has jumped into trouble.Nora Devi intended to leave her old life behind. But when a quick detour to acquire the funds for a new identity goes awry, she finds herself plunged ever deeper into the troubles she hoped to avoid.The Human Sector is a stash of fuel cells just waiting for a spark to explode... -
![Touch of Eon by Anna Hackett]()
Touch of Eon by Anna Hackett
Rated: 4.33 of 5 stars · 23 ratingsShe’ll do anything to free her sister and save the Earth from invasion, even if she’s blackmailed into stealing sacred alien artifacts…and becomes the prey of the dark, deadly warrior sent to hunt her down.Special Forces Space Marine Lara Traynor wants to save her sister and her planet from annihilation by the deadly insectoid Kantos... -
![Saved by the Alien Warrior by Hope Hart]()
Saved by the Alien Warrior by Hope Hart
Rated: 4.35 of 5 stars · 21 ratingsI was abducted, sold, then crash-landed on a strange planet... only to be abducted again. And you know the funny thing? I barely even care.I’m numb. You see, I’ve already lost everything. When you’re doing something you love, you never think that it could be the last time. That someone might take your life from you and leave you stranded on a planet where most of the locals are out to get you... -
![Unity and the Usurper by Honey Phillips]()
Unity and the Usurper by Honey Phillips
Rated: 4.33 of 5 stars · 9 ratingsA barbaric alien king. A fierce human female. A galactic conspiracy...After leading a rebellion to overthrow a tyrannical king, Cronan discovers a beautiful, defiant human female. She’s a responsibility he doesn’t need in the chaotic aftermath of the rebellion, but one he can't abandon... -
![Doctor Galaxy by Jenny Schwartz]()
Doctor Galaxy by Jenny Schwartz
Rated: 4.30 of 5 stars · 10 ratingsNew ER doctor Alexi Sur always intended to join an aid agency. She'd just expected to work among humans. But when the Pax Galactica Corps becomes her only option (don't ask - the debts aren't hers, but the family is. Much to her regret), Alexi finds herself traveling the galaxy and learning alien physiology and culture, all while becoming a reality TV star...Categorized as:
aliens first-contact galactic-empire military space-opera action-adventure adult book -
![Daylight by Cheree Alsop]()
Daylight by Cheree Alsop
Rated: 4.30 of 5 stars · 10 ratingsLiora Day’s fate entwined with the crew the day she joined the SS Kratos. Fleeing the Coalition in their attempt to destroy the Omne Occasus before it falls into the wrong hands, the captain and crew band together to save not only their ship, but the fate of the Macrocosm against those who would use the machine for harm... -
![Arkadian Skies by Lindsay Buroker]()
Arkadian Skies by Lindsay Buroker
Rated: 4.28 of 5 stars · 27 ratingsWith the man who kidnapped her daughter imprisoned aboard her ship, Captain Alisa Marchenko is closer than ever to reuniting her family. But her new guest has been in a coma for weeks, with the secret to her daughter's location locked away in his mind. She must find a way to sneak him into a state-of-the-art hospital on Arkadius, a planet in the heart of Alliance territory...Categorized as:
female-mc galactic-empire military space-opera action-adventure adult audiobook book -
![The Caphenon by Fletcher DeLancey]()
The Caphenon by Fletcher DeLancey
Rated: 4.48 of 5 stars · 14 ratingsOn a summer night like any other, an emergency call sounds in the quarters of Andira Tal, Lancer of Alsea. The news is shocking: not only is there other intelligent life in the universe, but it’s landing on the planet right now.Tal leads the first responding team and ends up rescuing aliens who have a frightening story to tell... -
![Soul of Eon by Anna Hackett]()
Soul of Eon by Anna Hackett
Rated: 4.47 of 5 stars · 14 ratingsThe last thing she expects is an instant mating with a handsome alien warrior…just before they are abducted by the deadly Kantos.Commander Kaira Chand of the Australian Air Force knows the meaning of loss. She lost both her beloved husband and her father over recent years, and she vows never to let a man close again... -
![Earth Star by Janet Edwards]()
Earth Star by Janet Edwards
Rated: 4.20 of 5 stars · 15 ratingsSequel to Earth Girl.18-year-old Jarra has a lot to prove. After being awarded one of the military’s highest honours for her role in a daring rescue attempt, Jarra finds herself – and her Ape status – in the spotlight. Jarra is one of the unlucky few born with an immune system that cannot survive on other planets... -
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![Tansy's Titan by S.E. Smith]()
Tansy's Titan by S.E. Smith
Rated: 4.19 of 5 stars · 16 ratingsTansy Bell, is the middle daughter of the three Bell sisters. She has always been a little different, even for a Bell. A chameleon, she can change her appearance and personality to blend in almost anywhere. She uses this talent to bring some of the worse criminals in the world to justice.Mak ‘Tag Krell Manok is the wild one of his four brothers... -
![Final Battle by Michael R. Hicks]()
Final Battle by Michael R. Hicks
Rated: 4.19 of 5 stars · 16 ratingsFollowing Confederation, Final Battle is the last book in the saga of Reza Gard. Reza is caught up in a daring plot to assassinate the Confederation President, even as something goes terribly wrong in the Empire and its warriors lose their will to fight. Reunited with Tesh-Dar, Reza and his friends fight to save the woman he loves, with the fate of the Empire and Humanity hanging in the balance...Categorized as:
aliens first-contact galactic-empire military space-opera action-adventure adult book -
![Without a Front: The Producer's Challenge by Fletcher DeLancey]()
Without a Front: The Producer's Challenge by Fletcher DeLancey
Rated: 4.60 of 5 stars · 10 ratingsAlsea is fractured in the aftermath of war. So is its leader.Though devastated by a personal loss, Lancer Andira Tal must somehow stitch her world together and move it forward when all the rules have changed. Every decision is fraught with risk, and her enemies wait for her to stumble... -
![Claim of Eon by Anna Hackett]()
Claim of Eon by Anna Hackett
Rated: 4.40 of 5 stars · 15 ratingsShe’s an alien warrior dedicated to her job, but a tough, handsome Terran captain is a temptation she never expected.As a female Eon warrior, Second Commander Airen Kann-Felis has fought for her career and is proud of her work aboard the warship, the Rengard. She has no time for men or frivolous pleasures, especially with the deadly insectoid Kantos causing the Eon trouble at every turn... -
![Storm of Eon by Anna Hackett]()
Storm of Eon by Anna Hackett
Rated: 4.42 of 5 stars · 14 ratingsWhen a Terran weapons scientist finds herself the target of deadly alien assassins, only one fierce alien warrior can keep her safe.Weapons scientist Dr. Finley Delgado wants to get her new laser defense weapon operational to protect Earth from the insectoid Kantos invasion. She has to make this work. She’s failed in the past and people paid with their lives, and she won’t fail again... -
![Punished by Tana Stone]()
Punished by Tana Stone
Rated: 4.48 of 5 stars · 12 ratingsThe dark and deadly Vandar raider who was exiled to our planet refuses to help me. Not without a price.Corvak is nothing like the men on my planet. He's violent and brooding and wants nothing to do with a human female like me. But he's the only one who knows how to fight. And I refuse to be helpless when the empire comes after our planet--and it's only a matter of time until they do...Categorized as:
aliens female-mc first-contact galactic-empire action-adventure adult audiobook book
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