Books like 'Kai'
Readers who enjoyed Kai by Luna Hunter also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
futuristic science fiction funny aliens military shapeshifters alpha male m-f
-
A Treasure for the Alien Warrior by Honey Phillips
Can an alien commander allow himself to choose love over duty? Jessica’s orderly life changed forever when she became the guardian of her orphaned niece and nephew. She is still trying to learn how to be a parent when they are taken by aliens.After a desperate attempt to escape their captors ends on a deserted planet, she faces an entirely new set of challenges... -
Captain Vorpatril's Alliance by Lois McMaster Bujold
Captain Ivan Vorpatril is happy with his relatively uneventful bachelor's life of a staff officer to a Barrayaran admiral. Ivan, cousin to Imperial troubleshooter Miles Vorkosigan, is not far down the hereditary list for the emperorship. Thankfully, new heirs have directed that headache elsewhere, leaving Ivan to enjoy his life on Komarr, far from the Byzantine court politics of his home system...Categorized as:
military m-f science fiction humor futuristic suspense behind-doors marriage of convenience -
The Long Way to a Small, Angry Planet by Becky Chambers
A rollicking space adventure with a lot of heart. When Rosemary Harper joins the crew of the Wayfarer, she isn't expecting much. The patched-up ship has seen better days, but it offers her everything she could possibly want: a spot to call home, a chance to explore the far-off corners of the galaxy, and some distance from her past... -
Born with a Silver Moon: Galaxa Warriors by Milly Taiden
Rated: 4.59 of 5 stars · 16 ratings** COMPLETELY STANDALONE ** Discover a brand new race of Alpha males ready to find their mates in a dangerous warrior planet. Sassy women traveling with Gerri Wilder are in for the journey of a lifetime and a mate that will love them through the galaxy. Are you ready? Grab the next Galaxan romance between a sexy warrior and his fiery mate... -
-
Kiss My Asteroid: Galaxa Warriors by Milly Taiden
** COMPLETELY STANDALONE **Discover a brand new race of Alpha males ready to find their mates in a dangerous warrior planet. Sassy women traveling with Gerri Wilder are in for the journey of a lifetime and a mate that will love them through the galaxy. Are you ready?Ivy Grimaldi can’t stand change. Ever. But change is something she’s had to deal with a lot lately... -
Sun in the Oven by Milly Taiden
Rated: 4.51 of 5 stars · 18 ratings**STANDALONE ** Discover a brand new race of Alpha males ready to find their mates in a dangerous warrior planet. Sassy women traveling with Gerri Wilder are in for the journey of a lifetime and a mate that will love them through the galaxy. Are you ready? Grab the third Galaxan romance between two sexy warriors and their fiery mate. Henley Rourke is a woman who loves a challenge... -
Hatched by Erin Tate, Celia Kyle
Rated: 4.29 of 5 stars · 21 ratingsTaulan joi Lana Coburn, War Master of the Preor third fleet, is finally having his wishes granted. He has a mate and will soon have two dragonlets to protect and love. But only if he can live to see them born. Or, as his Lana says, hatched . This short story is set in the DRAGONS OF PREOR world and does not stand alone... -
Dark Class by Michelle Diener
Waking up alone . . . Ellie Masters comes out of a coma to find herself the only inhabitant of an eerily empty moon station. She’s not on Earth any more, she’s not even in the right solar system. So when someone reaches out to her, tells her he’s her friend, she’s happy to believe it. The alternative is to be stuck alone with an enemy.The hunt of his career . .Categorized as:
aliens alpha male military science fiction sweet heroine slow burn strong heroine abduction -
Caveman Alien's Secret by Calista Skye
Delyah This caveman has abducted me. A moment ago, I was pointing my crossbow at his striking, alien face. Then he grabbed me and ran. He's seven feet tall, has huge muscles and deep black stripes. And I know that the bulge in his loincloth hides something very alien and special. He makes me tingle like crazy. But I can't just follow my instincts...Categorized as:
shapeshifters aliens alpha male witches humor science fiction multicultural futuristic -
Diplomatic Immunity by Lois McMaster Bujold
Rated: 4.13 of 5 stars · 45 ratingsReturning from their honeymoon on Earth, Miles and Ekaterin stop at one of the asteroid-based habitats informally known as Quaddiespace (see FALLING FREE), where Miles is sent to defuse an incident between a Barryaran military command and the local police... -
Hierax by Ruby Lionsdrake
Rated: 4.30 of 5 stars · 15 ratingsAs a database programmer from Arizona and a fan of sedate, indoor activities, Indi Smith doesn’t belong in outer space. Certainly not in a star system with a broken wormhole gate and no way home. But through no fault of her own, that’s where she’s landed, and nobody on the ship, not even the genius chief engineer Hierax, knows how to repair the gate... -
Valor's Trial by Tanya Huff
Rated: 4.14 of 5 stars · 31 ratingsThe fourth book in Tanya Huff's action-packed military sci-fi adventure Confederation seriesAfter surviving the perils of the Crucible, the Marine Corps planet where a routine training assignment had taken a deadly twist—Gunnery Sergeant Torin Kerr returned to Ventris Station just in time to link up with her old platoon and head out to a new war zone, an area of space where the enemy known as... -
Oh No, I Stole An Alien Furball And Kissed A Beastmaster by Kate Sinner
In space, no one can hear you squeal over cute, trouble-making alien furballs... or a unexpected romance. All I wanted was a fluffy friend, but now I'm knee-deep in an adorable infestation threatening to destroy everything we've built. As the furry menace multiplies, our once-bustling hotel teeters on the brink of ruin... -
Mercenary Abduction by Eve Langlais
All this mercenary wants is to kill and loot his way to fame and fortune, but his plans change when a human accidentally steals his heart. Makl is looking to become the greatest mercenary the universe has known. In true family tradition, he leaves a trail of mayhem and bodies wherever he goes. steals the most priceless of items, ravishes females left and right... -
-
Rendan by Erin Tate, Celia Kyle
Rated: 4.15 of 5 stars · 21 ratingsViolence is never the answer… unless you’re a Preor warrior. Rendan sen Tarkan, Offense Master to the Preor Third Fleet, has found his human mate. She is small compared to him, but her curves, delicious scent, and sky blue eyes call out to his soul. He has waited for a female for over two centuries and he will fight—kill—any who dare attempt to take her. Even one of his own males... -
Alien Retribution by Sadie Carter
Rated: 4.38 of 5 stars · 8 ratingsSince the day his family was murdered, Boris has been obsessed with vengeance. The last thing he needs in his life is a mate. Besides, what sort of female would want a scarred, crippled male who has taken a vow of silence? Nope, there is no room in his life for a female. Then he meets Nassir. Beautiful. Fragile. Distant... -
All I Want For Christmas Is An Alien: Sci Fi Alien Holiday Romance by Julie K. Cohen
Don’t tell me there’s no Christmas on Zyan. All we need is a plan…Sure, the aliens here don’t know what Christmas is, we don’t have Christmas lights or chocolate (yes, that one’s hard to accept), but we’re all together. Zyanthan-human mated pairs and their children, all celebrating the holidays...Categorized as:
military aliens m-f humor science fiction length-novella futuristic explicit-open-door -
Possessed by the Alien Prince by Krista Luna
I dare not trust my fated mate. Yet I cannot resist. I must claim her. TANDY: I’m an elite soldier, willing to make tough decisions, but I sure didn’t shoot down the varoolian king’s shuttle. Only, the fierce alien warriors don’t believe me. To preserve peace between our species, I’ll do anything—even marry one of them. When I offer myself up, I’m stunned that the gorgeous prince claims me... -
Kozav by Erin Tate, Celia Kyle
Rated: 4.08 of 5 stars · 21 ratingsKozav found his mate and then he lost her. Now it’s time to hunt… Grace Hall is a nurse, not a doctor. But when five Preor warriors are brought to the emergency room and the doctors don’t do a darn thing for them, she steps forward. Sure, they are aliens with massive wings who turn into dragons whenever they wish, but they still look human-ish... -
The Alien’s Little Sister by Amanda Milo
MATT:When my employee propositions me, I’m taken aback. Yeah, she's gorgeous, exotic, and adventuresome, but besides the issue of me being her boss, she proposes something casual. Which is reason enough to give me pause, because I’m not a casual kind of guy.But long story short, we get together, it’s great, and I’m crazy about her, which means I have a big problem...Categorized as:
aliens alpha male m-f humor science fiction height-difference non-human-heroine tall-heroine -
Doctor Galaxy by Jenny Schwartz
Rated: 4.09 of 5 stars · 22 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... -
Wulf and the Bounty Hunter by Gail Koger
Rated: 4.22 of 5 stars · 10 ratingsWulf knows Yakira is his soulmate. Now he just needs to convince her. But with intergalactic terrorists on Yakira’s trail, there’s little time for romance. What’s a hot-blooded Coletti warlord to do? Yakira feels safe and cherished with Wulf, but he is a Coletti--the ultimate predator with a taste for blood, a passion for battle, and the need to control everything in his life... -
Alien Werewolf's Prize by January Bell
There's only one thing the huge alien werewolf me.Enduring harassment by a brain in a vial is hardly my vision of an ideal career, much less what I want for the rest of my life. When I’m selected for the Starlight Lottery, the choice is literally anything is better than the space station I’m on. Except— it’s not a job they’ve found for me. Nope...Categorized as:
shapeshifters aliens m-f alpha male marriage of convenience werewolves humor length-novella -
Alien Soldier's Baby by Luna Hunter
Rated: 4.22 of 5 stars · 9 ratingsCan their interspecies romance achieve the impossible? Wanted: distracting assignment for third-wheel researcher Kelly Graham feels like an intruder since her bestie and fellow scientist Jillian Archer married sexy alien warrior General Vinz... -
-
Alien Guardian's Baby by Luna Hunter
Rated: 4.22 of 5 stars · 9 ratingsCan their interstellar romance prevent a galactic war? Where no human has gone before Isabella Parker is en route to Vortex Station in response to a mysterious message on her datapad... -
Hitting the Target by Evangeline Anderson, Reese Dante
Rated: 4.20 of 5 stars · 10 ratingsA girl sent to kill the one she is dreaming of Her target? A Kindred warrior with a beast inside Can Mia complete her mission? Or is Trey Hitting the Target when he aims for her heart? Ormyu Five is the world divided in two To the north, a police state ruled by the heavy hand of The EYE, which spies on its people constantly and keeps iron control over their lives... -
Romancing the Alpha: An Action-Adventure Romance Boxed Set by Zoe York, Ruby Lionsdrake
Rated: 4.25 of 5 stars · 8 ratingsA multi-author anthology of action-packed adventure novellas. Let the adrenaline flow! ***ZOE YORK, RUBY LIONSDRAKE, ZARA KEANE, ANNA HACKETT, EMBER CASEY, ANNA LOWE, SADIE HALLER, LYN BRITTAN, LYDIA ROWAN, A.J... -
Novak by Luna Hunter
Rated: 4.29 of 5 stars · 7 ratingsThis alien general demands obedience. Being an ambassador ain’t easy — especially if you’re a young, curvy blonde on a space station full of aliens! Michelle Coors tries her best to serve humanity, but sometimes it feels like she’s running into a brick wall. The Zorans are the worst of them — headstrong, arrogant, alpha warrior aliens who show her zero respect... -
Dusan by Luna Hunter
Rated: 4.29 of 5 stars · 7 ratingsDusan must choose: His squad or his mate. Cindy Knox needs a break. The shapely blonde saved the galaxy with Michelle and Novak’s help, and now the intergalactic paparazzi won’t leave her alone. She never asked for this fame, and does her best to flee from the spotlight... -
Dragon's Taming by Miranda Martin
Rated: 4.33 of 5 stars · 6 ratingsThey see me as broken, but it's up to me to save them all. They keep me locked away, too dangerous to be free, because they don't see what I do. They don't know the truth like I do. I was stopped from accomplishing my mission before but I can't fail. The fate of our entire planet, of every human and Zmaj both, rests in my hands. It was easier before she came... -
Crossing Quinn by Gail Koger
Rated: 4.33 of 5 stars · 6 ratingsQuinn Jones is a formidable Coletti warlord. His mission is to capture Xenia and bring her back to Tanith to be mated with a warrior the Overlord has chosen. Problem is, Quinn finds himself falling for the beautiful Farin. Her unusual “psychic powers, combat training and berserker abilities” make her the perfect mate for him... -
Hothar's Folly by Gail Koger
Rated: 4.33 of 5 stars · 6 ratingsUndercover psychic investigator Casey Jones’ hunt for a traitor in Central Command gets blown all to hell when the crew of the military C130 cargo plane she's riding on tries to kill her. Drawing on her telekinesis, Casey stops their assassination attempt and bails out as the aircraft goes down in flames... -
Vukan by Luna Hunter
Rated: 4.40 of 5 stars · 5 ratingsThe fate of the entire universe depends on me working alongside Vukan, a dominant alien general. The only problem? I hate him and everything he stands for. I don’t take orders from any man — and certainly not some alien general. I don’t care that he’s a seven-foot-tall, deadly warrior with a body to die for... -
Drakan by Luna Hunter
Rated: 4.40 of 5 stars · 5 ratingsCan an alpha alien warrior and a curvy human pilot save the universe? Hannah Kingsley has more than enough on her plate. The full-figured blonde delivers intergalactic packages for a living on her trusty spaceship with her best friend Evelyn, trying to save up enough money to send her little brother to a school for the gifted... -
-
The Zoran's Captive (Scifi Alien Romance) (Barbarian Brides) by Luna Hunter
Rated: 4.40 of 5 stars · 5 ratingsShe's the only one who can save me -- but can I protect her from myself? They say I'm a monster. A killer. Humanity's worst nightmare. Only Nora Baker believes in me. To spite her the warden locks the curvy human in my cell. He expects me to kill her. Nobody expects me to love her. When I see her, it's love at first sight... -
Taulan by Erin Tate, Celia Kyle
Rated: 4.01 of 5 stars · 27 ratingsHe wants to return to Preor and she wants a job, but you don’t always get what you want. Lana Cooper is down to her last hundred dollars, has no job, and her clunker of a car has finally clunked out. How has her life become such a cluster of horribleness? Oh, right. A guy. Only she doesn’t get a chance to beg for a job. Nope, one walk along the beach changes everything... -
Treasured by the Alien Pirate by Celia Kyle, Athena Storm
Rated: 4.08 of 5 stars · 12 ratingsI’m a wanted woman. In more ways than one. I was arrested, then imprisoned in cryosleep, and finally rescued by a crew of horned, golden skinned aliens. Now my government has branded me a traitor. Whoever is after me is willing to kill--to destroy anything and anyone in their way. They’re powerful and without mercy. It’s enough to make me lose all hope. Until Grantian... -
Fenrir by Luna Hunter
Rated: 4.11 of 5 stars · 9 ratingsCan a fiery dragon shifter and a curvy human linguist save the universe? When Abigail Snow discovers her college boyfriend has been cheating on her, she uses her degree in alien languages to get as far away from Earth -- and men -- as possible. On planet Audur, she meets Fenrir Dagursson, heir to the throne of Clan Dagur...Categorized as:
shapeshifters military aliens humor new adult science fiction futuristic length-novella -
Gravel and Grit by Stacy Jones
Zaek is losing hope after waiting centuries for rescue, but the time has finally arrived. The lost emergency beacon has fallen from orbit and gone active. All he needs to do to get off this damn planet named Earth is find it and get to the pick up location in time... -
Rebel Pax by Elyssa Ebbott
Rated: 4.13 of 5 stars · 8 ratingsHe said he’d protect me. But I know he’s going to ruin me. I live as a refugee on an alien planet swarming with killers and thieves. I keep my distance, and they keep theirs. It’s the only way I can survive. But when my shuttle is shot down and an exiled alien king claims me as his, I’m not sure if he’s rescuing me - or abducting me... -
Quantum by Erin Kellison
Rated: 4.14 of 5 stars · 7 ratingsSpace Invader steals time for love... Ex-soldier turned space pirate Tey Raider is visiting Earth to steal a fortune and use one of the Red Rock vortexes to escape into the deep black. When he bumps into Sophia West, he has no idea the human woman will throw a wrench into the hyperdrive of his master plan, and spin him, his storm cruiser, and his heart out of control... -
Bojan by Luna Hunter
Rated: 4.14 of 5 stars · 7 ratings"It was supposed to be an easy job. She's making it hard." Just when Zoey Valentine lands her dream job, assisting a famous director as he documents alien wildlife, the universe conspires against her. Pig-faced aliens attack their spaceship, kill the crew, and enslave the curvy blonde... -
Zivan by Luna Hunter
Rated: 4.14 of 5 stars · 7 ratingsMia’s new partner? An arrogant, cocky, seven-feet-tall alien warrior. Mia Frost prides herself on her work ethic. There’s not a single detective in the entire New Atlanta Police Department who works harder than the curvy redhead. Ever since her little sister disappeared without a trace, she’s poured every waking minute into her job... -
Rebel Gage: Sci-Fi Alien Romance by Elyssa Ebbott
Rated: 4.17 of 5 stars · 6 ratingsThe only safe place for her is in the middle of danger, beside him . Gage is the most deadly Primus in the galaxy. Hire him, and the target is as good as dead. But this time his target is Aria, and one look at her changes everything. Gage has never cared about a woman beyond one wild night, but then he has never met someone like Aria...Categorized as:
shapeshifters military aliens humor science fiction multicultural futuristic fated-mates -
-
Marauder Ramses: Scifi Alien Invasion Romance by Aya Morningstar
Rated: 4.17 of 5 stars · 6 ratingsAn alien warrior breaks all the rules to protect his human mate. Ramses Ivanov never thought he’d find his mate, but when this alien warrior meets his new partner--a human cop on Earth--everything changes. He can’t resist her soft, sweet voice; or her almond-brown eyes and killer curves. Dating your partner is strictly forbidden, but when it comes to his mate, all rules are meant to be broken... -
Wet for the Alien Prince by Miranda Martin
Rated: 4.17 of 5 stars · 6 ratingsBig, blue, ripped as sin and totally off limits. Drevakin Lo'ara, prince of a minor noble house, is desperate. He goes to the Celestial Mates dating agency in the hopes of fulfilling his dreams of finding his fated mate. The only problem is, unknown to everyone, the Celestial Mates agency has agreed that if a match is found, she goes to the prince of a major house... -
Saved by Mara Frost
Rated: 4.05 of 5 stars · 13 ratingsThey say that no one can hear you scream in space, but that’s a big lie because I know for a fact that plenty of aliens have heard me… So, who’s sick of aliens and has two thumbs? This girl right here. I’m now on the run with the jerk who abducted me and we’ve got nowhere to go... -
The Zoran's Baby by Luna Hunter
Rated: 4.20 of 5 stars · 5 ratingsThis Zoran Warrior leaves me breathless -- and pregnant! Aria Winters is on a mission to rescue Grace, her little sister. The Nezdek came from the skies and took her, and she won't rest until Grace is safe. Aria talks her way onto a Zoran ship set to explore a distant planet, but she didn't expect to fall for the ship's brooding, tall, imposing alien commander... -
The Zoran's Touch (Scifi Alien Romance) (Barbarian Brides) by Luna Hunter
Rated: 4.20 of 5 stars · 5 ratings"We're stuck on this rock. It's just you and me now." Miah Dorsey spends her days slaving away for the Onyx Corporation. She’s trying to put her sister through college, and to do that, she desperately needs a promotion. Instead, she’s transferred to a desolate, ice-covered planet. Her day goes from bad to worse when her transport ship is attacked and crashes on an alien planet... -
Caveman Alien’s Prize by Calista Skye
He's a nightmare of violence and danger.And he's about to win a prize for it: me.JinxNobody said being abducted by aliens and dumped on a dinosaur planet would be fun.But we five Earth girls are surviving so far, squeezed between two rival tribes of fierce cavemen...
Find out more about romance.io.
Get recommendations by genres & tropes
Use the romance book finder to mix and match over 100 content keywords to find the books that match your preferences

Or - use our amazing romance book finder to get recommendations based on your favorite content tropes and themes. Mix and match at will.