Books like 'Axrel'
Readers who enjoyed Axrel by Olivia Riley also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
futuristic science fiction non-human-hero aliens military m-f career professional sweet heroine competent heroine fighters
-
Taunting Krell by Laurann Dohner
Book 7 in the Cyborg Seduction series. Krell hates humans. They left him scarred and undesirable to females. He’s lived a lonely existence in his home world because of their brutality. So he’s angry when he’s ordered to interrogate the captured human. She’s the enemy, a soldier from Earth. He’ll show her the same mercy they showed him. None...Categorized as:
alpha male aliens from hate to love military non-human-hero possessive hero cold hero m-f -
Relic of Sorrows by Lindsay Buroker
Captain Alisa Marchenko finally has a lead on finding her daughter, but her passengers want her to take them on their quest instead. Even though the Star Nomad is her ship, they have power she cannot fight, and she finds herself with no choice but to accept another detour. But the ancient relic they seek has the ability to destroy worlds and is coveted by many... -
Krac's Firebrand by S.E. Smith
Section K Replication Alluthan Clone, or Krac as he was now called, had one focus in his life; protecting the descendants of the Freedom Five who ruled Earth’s council. Rescued by members of the family from a secret facility, he pledged to do what he could to always keep them safe. Things become personal when insurgents target a special member of the Freedom Five, Gracie Jones-Jefe and her family... -
The Arcav Prince's Captive by Hope Hart
Can you ever truly escape the past? Everly, tough, fierce ex-federal agent has broken with her past, moving to Arcavia and training as the Queen's guard. Along with the challenges of adjusting to a new planet, she's dealing with a disasterous complication: The fallout from an incredible, stolen night with Korva, a broken male known as a traitor amonst both Arcav and humans...Categorized as:
aliens non-human-hero m-f science fiction futuristic explicit-plentiful length-short -
-
Brilliant Starlight by Anna Carven
Rated: 4.36 of 5 stars · 17 ratingsAbbey We're back on Silence , orbiting the Dark Planet while my husband handles unfinished business on Kythia. For some reason, he seems a little bit tense. According to Tarak, Kythian politics can be complicated, especially when the entire Kordolian Empire has just been destroyed. I hope things don't get too complicated, because I don't want to be stuck here for too long... -
Guardian by Anna Hackett
Rated: 4.40 of 5 stars · 15 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... -
Emperor by Anna Hackett
When an experimental starship test goes horribly wrong, a scientist from Earth finds herself fighting for her survival, and her only lifeline is a wild, powerful alien king.Waking on an alien world, wracked by pain, Dr. Poppy Ellison is confused and adrift…until his voice calls to her in the darkness...Categorized as:
aliens sweet heroine cold hero m-f science fiction futuristic explicit-open-door length-medium -
The Arcav Captain's Queen by Hope Hart
She wants her planet back... ... But all he wants is her. Forced to become a monster to survive her father’s cruelties, Saria wants only one thing: To convince the Arcav King to help her lead her people out of the darkness and into the light. She has no intention of mating anyone. Least of all Roax- the bossy bodyguard who the Arcav King ordered to be her shadow...Categorized as:
military aliens non-human-hero m-f science fiction futuristic creative-anatomy explicit-plentiful -
Rescued by her Alien Protector by Mina Carter
Prepared to put her life on the line, she didn’t expect to lose her heart. Vice President Madison Cole is used to having a target on her back. Being captured by aliens? An acceptable risk to get what she needs. What she didn’t count on was falling for the ‘enemy’, a handsome alien warrior with a hero’s heart...Categorized as:
military aliens career professional alpha male non-human-hero futuristic science fiction suspense -
Dark Strength by Cynthia Sax, Amanda Kelsey
Rated: 4.56 of 5 stars · 9 ratingsThe Bigger They Are, The Harder They Fall. Balvan, the Refuge’s Gatekeeper, is huge, green, and has a reputation for crushing skulls. He’s a modified humanoid, genetically designed to be the ultimate warrior. One of a kind and considered monstrous by many, he never expects to find his mate, the one female meant for him... -
Legacy by Tana Stone
The Drexian Academy has four schools and four rules. Beware of the Assassins.Don't cross the Blades.Trust the Irons.The Wings go as one.Break them at your peril.Ariana is the first human instructor at the Drexian Academy and the first female to teach flight to cocky cadets. She’s the best Earth has to offer with a lot to prove...Categorized as:
aliens m-f competent heroine non-human-hero explicit-open-door futuristic dual-pov first-person-pov -
The Arcav Commander's Human by Hope Hart
A lifetime of duty to his people… …Or the woman who could be his? Jaret has been completely dedicated to the Arcav race for centuries. His only focus is the continuation of his species. Known for being cold and remote, no one is more surprised than Jaret when he insists on leading the mission to rescue the humans kidnapped for slavery...Categorized as:
aliens non-human-hero m-f futuristic science fiction explicit-plentiful length-short -
The Arcav Guard's Female by Hope Hart
Rated: 4.31 of 5 stars · 16 ratingsShe’s on a quest for revenge… ...But he’s on a mission to make her his... After being abducted by aliens and rescued by the Arcav, all Peyton wants is revenge. Well, that, and a trip straight back home to Earth where she belongs. She’s not interested in the handsome Arcav Guard who stares at her so intently. Even if he does make her wish she’d met him before her captivity... -
Dark Minds by Michelle Diener
The mind is the most powerful weapon of all . . . Imogen Peters knows she's a pawn. She's been abducted from Earth, held prisoner, and abducted again. So when she gets a chance at freedom, she takes it with both hands, not realizing that doing so will turn her from pawn to kingmaker...Categorized as:
aliens competent heroine non-human-hero science fiction futuristic dual-pov open-door -
-
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... -
Home World by Erin Raegan
Rated: 4.22 of 5 stars · 21 ratingsPeyton I fell in love with an alien. Our world was invaded by carnivorous freaks and the Dahk swooped in and saved me and my friends. They want to save the Earth but we are our own worst enemy, or so I thought. The truth is we have no idea what's out there. Now I'm on my way to Home World. The Dahk's world. An alien world. I had no choice, it was taken from me... -
Holmes by Anna Hackett
Rated: 4.36 of 5 stars · 14 ratingsThe battle of survival against the invading aliens heats up…but Hell Squad never quits. General Adam Holmes’ life is dedicated to keeping his small band of survivors alive. On the run, with only Hell Squad and the other soldiers for protection, they are making their last dangerous drive to the secret stronghold of the Enclave... -
Fated to the Alien Rebel by Erin Hale
SageI’ve built a new life on the planet Tavikh, spending every day seeking penance. And despite witnessing three of my new-found friends find their fated mate, I don’t dare hope to find mine. Not when there’s a chance someone from Earth will arrive to take me back to face the consequences for what I did...Categorized as:
aliens m-f caretaking competent heroine sweet-hero science fiction futuristic tortured heroine -
A Very Arcav Christmas by Hope Hart
Rated: 4.39 of 5 stars · 10 ratingsBabies, weddings, and Christmas... oh my! For the human women on Arcavia, there's plenty to celebrate during the holidays. Sure, the Grivath are a constant threat, but with a surprise wedding to plan, a baby on the way, and even a visit from Santa, the first Arcav Christmas is sure to be incredible... -
Sagitta by Ruby Lionsdrake
Rated: 4.20 of 5 stars · 17 ratingsDr. Tala Matapang thought the most challenging part about getting kidnapped by slavers from another planet would be escaping, not butting heads with the obstinate Star Guardian captain who rescued her. She’s been working in his sickbay, and it's refreshing not having to deal with the politics and bureaucracy she faced as a surgeon back home, but Captain Sagitta is as infuriating as he is handsome... -
Heart of Eon by Anna Hackett
Okay, 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...Categorized as:
military alpha male from hate to love aliens competent heroine m-f science fiction futuristic -
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... -
Roth by Anna Hackett
Rated: 4.21 of 5 stars · 15 ratingsIn the aftermath of a deadly alien invasion, a band of survivors fights on… Roth Masters is a protector to the bone. Driven by the losses of his past, he fights side-by-side with Hell Squad to protect the human survivors of the alien invasion. As leader of Squad Nine, he and his team are known for their perfect timing in a firefight... -
Manu by Anna Hackett
Rated: 4.28 of 5 stars · 11 ratingsAs the battle against the invading aliens intensifies, a group of bad boy bikers and mercenaries will stand and fight for humanity’s survival… When former berserker Manu Rahia lost his leg on a mission, he was forced to leave his squad... -
-
The Arcav King's Obsession by Hope Hart
He Stole Her Life... ...Can he Win Her Heart? Just a few weeks ago, Harlow was living her life on Earth- locking up bad guys and drinking beers with her fellow cops after shift. She never wanted to be the Arcav King's mate. Unfortunately, she was outplayed. Now, Harlow must learn how to rule over an alien species, while making room for her mate's giant... ego...Categorized as:
aliens non-human-hero m-f futuristic science fiction explicit-plentiful length-short -
Niko: Scifi Alien Invasion Romance by Anna Hackett
Rated: 4.23 of 5 stars · 13 ratingsIn the aftermath of a deadly alien invasion, a band of survivors fights on… Mackenna Carides is tough, strong, and excellent at her job as second-in-command of Squad Nine. She often works side by side with Hell Squad on some of the toughest missions to fight back against the alien raptors. Now she’s helping the survivors of Blue Mountain Base settle into their new home at the Enclave... -
Hemi by Anna Hackett
Rated: 4.30 of 5 stars · 10 ratingsIn the middle of an alien invasion, a big, tough, tattooed former mercenary is finally going to chase down his woman. Camryn McNab knows love is a lie. Okay, maybe not for everybody--her fellow soldiers on Squad Nine have managed to fall in love in the middle of a vicious alien attack. But it's not for her. She comes from two people incapable of love... -
Torrvok by Alana Khan
Rated: 4.60 of 5 stars · 5 ratingsTorrvok, a cunning and skilled warrior, protects Sierra from enemies who hunt them without mercy. But can he keep her safe from the raging beast writhing under his skin?SierraHe rescued me—twice—then protected me on a dangerous chase across a continent.Despite his warnings not to trust him, when we’re together I’m only aware of the pounding desire his presence ignites... -
Knightmaster by Anna Hackett
She was sent to forge an alliance with the deadly Oronis knights…and instead finds herself framed for abducting their queen.Xenoanthropologist Kennedy Black loves exploring new cultures with Space Corps. Everyone in her life has left her, so she happily fills the void with exciting adventures...Categorized as:
aliens military alpha male m-f forced proximity science fiction futuristic length-short -
Rogue by Anna Hackett
Rated: 4.19 of 5 stars · 15 ratingsAbducted by alien slavers and taken to a lawless desert world, the last thing she expects is to be claimed by a handsome alien rogue. Rogue contains two action-packed novellas in the Galactic Gladiators series. Information Rogue: arrogant information merchant Zhim doesn’t know what hits him when he collides with feisty human hacker Ryan... -
Craved by Tana Stone
Rated: 4.13 of 5 stars · 20 ratingsShe thinks the gorgeous, silver fox alien is a hologram. He’s not. The only alien warrior True isn’t intimidated by is the one in her holodeck simulation. Not only is True a virgin, she’s barely been kissed, so the huge, hunky Drexian warriors terrify her. But the guy in her simulation doesn’t. He may be as big and built as the rest of them, but she knows he’s not real...Categorized as:
military aliens non-human-hero science fiction futuristic virgin heroine shy heroine -
The Arcav General's Woman by Hope Hart
How do you choose between honor and love? Harmless, fun Methi, can always be counted on to get into trouble. But the cocky Arcav with a heart of gold is slowly being replaced with a cold, bitter male who fights his demons at every turn. Some Arcav can wait for their mates for centuries before risking insanity. But others can’t. Methi knows who is mate is...Categorized as:
aliens non-human-hero m-f science fiction futuristic explicit-plentiful length-short -
Bonded To The Alien Centurion by Mina Carter
Behind ‘enemy lines’ the last thing she expects is a sexy alien warrior determined to make her his… When things screw up in diplomatic talks with the Lathar Dani Black finds herself lined up for the one thing every dyed in the wool soldier dreads… a diplomatic function... -
Mark of Eon by Anna Hackett
Oil 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... -
-
The Vanished Specialist by K. Webster, Nicole Blanchard
Rated: 4.19 of 5 stars · 11 ratingsMy lilapetal is dying...and I can’t save her. The woman who brought me back to life may not live long enough to see me truly happy. All the tests, the experiments have failed me...and I have failed her. If I don’t devise a cure to save my alien, I’ll spend the rest of my existence on Mortuus alone. The others believe my mate isn’t strong enough to survive...Categorized as:
non-human-hero aliens m-f sweet heroine possessive hero sweet-hero survival caretaking -
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... -
Edge of Insanity: The Alliance Book 6 by S.E. Smith
Rated: 4.22 of 5 stars · 9 ratingsScorching hot and sexy stories set in science fiction and paranormal worlds that come alive in your hands. Internationally acclaimed for her writing, S.E. Smith's stories are unapologetic happily-ever-afters. They are also full of alpha heroes, heroines with a brain, action, adventure, and humor...Categorized as:
military aliens non-human-hero science fiction multicultural futuristic length-medium -
Gift of the Beast: Holiday Starrs by Sonia Nova
Rated: 4.22 of 5 stars · 9 ratingsGarr is a wreck. His years of torture has left him almost unable to speak or interact normally. He tries and tries to get back into the military where life is simple and regulated, but he's denied because of his mental trauma. Shea is a single mom who has moved in next door where she is close to family... -
Kol: Alien Abduction Romance by Vi Voxley
Rated: 4.25 of 5 stars · 8 ratingsForever is no time at all, sometimes. Jackie Hooper is all out of time. An incurable illness at her side, she's trying to make the best of the opportunities she has left. Getting abducted by a Nayanor warlord was not on that list of things to do. But then again, spending your last moments with the hottest man in the universe can't be all bad.. -
Ash by Anna Hackett
Rated: 4.22 of 5 stars · 9 ratingsIn the middle of an alien invasion, will the bad boy berserker catch the geeky tech genius? Computer genius Marin Mitchell is doing her part to help humanity survive the raptor invasion, working tirelessly to decrypt alien data. She spends her days working and drooling over a certain tattooed, biker berserker from Squad Three. But Marin knows the rules: geeks do not snag sexy bad boys... -
Embrace the Passion by S.E. Smith, Anna Hackett
Rated: 4.25 of 5 stars · 8 ratingsPets in Space is back! Join us as we unveil eleven original, never-before-published action-filled romances that will heat your blood and warm your heart! New York Times, USA Today and Award-winning authors S.E... -
Tansy's Titan by S.E. Smith
Tansy 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...Categorized as:
alpha male aliens military possessive hero non-human-hero sweet-hero m-f science fiction -
Warlord Sky by Cynthia Sax
Rated: 4.40 of 5 stars · 5 ratingsNo one grounds a barbarian warrior. Qulpa, a Chamele warrior, lost everyone he loved in the brutal Succession Wars. Flying is the only thing that brings him joy. Serving as his team’s pilot is the sole duty he has left. Then a horrific crash leaves him injured and unable to fly. The one being who can help him is also his gerel, the female destined to be his... -
Karzin by Elin Wyn
Science Fiction Adventure Romance The Xathi may be defeated. But the battle to rebuild is just beginning. For geologist Annie Parker, all she can hope for is helping her shattered family heal while she works in her quiet laboratory. Until a mysterious seismic eruption shakes her entire world all over again. Teamed up with a surly Valorni, Annie just wants to get the job done... -
-
My Ant Monster Mate by Susan Trombley
YeseniaHunting giant ant aliens is never an easy job, but the opportunity to capture a male Menops before he imprints on a queen is too good to pass up. Even if it means putting up with a mouthy Artificial Intelligence and traveling to a planet restricted by the Cosmic Syndicate. Vengeance for humanity—for my family—is too important to let any obstacle stand in my way...Categorized as:
aliens alpha male monsters m-f non-human-hero science fiction creative-anatomy explicit-open-door -
Seized by Tana Stone
Rated: 4.16 of 5 stars · 11 ratingsHow unlucky do you have to be to get abducted by aliens. . . twice? Snatched from Earth to be a bride for a bad-ass race of warriors, Bridget has barely gotten used to her new life on the high-tech Drexian space station when she’s abducted again. This time the aliens are vicious and bloodthirsty, and they have very different plans for the pretty human...Categorized as:
aliens military non-human-hero science fiction multicultural futuristic length-short -
Cruz: Scifi Alien Invasion Romance by Anna Hackett
Rated: 4.07 of 5 stars · 18 ratingsBattle-hardened soldier Cruz Ramos is running on empty. As second-in-command of the deadliest commando squad fighting the invading aliens, he doesn't know why he’s fighting anymore. He’s seen too much destruction, devastation, and far too much death. Still, every day he goes out to protect those humans left, and every day the growing numbness threatens to take over...Categorized as:
aliens military alpha male m-f dystopian science fiction futuristic independent heroine -
Exposed by Tana Stone
Rated: 4.12 of 5 stars · 11 ratingsSuspected of kidnapping. Broke. Dumped. Katie thought things couldn’t get any worse. Then, she was abducted by aliens. Sure, they were hot warrior aliens, and the space station she was taken to was the coolest place she’d ever seen... -
Dark Deeds by Michelle Diener
Rescue might just be the death of her. Far from home . . . Fiona Russell has been snatched from Earth, imprisoned and used as slave labor, but nothing about her abduction makes sense. When she's rescued by the Grih, she realizes there's a much bigger game in play than she could ever have imagined, and she's right in the middle of it. Far from safe . .Categorized as:
aliens alpha male military competent heroine non-human-hero science fiction futuristic slow burn -
Dark Planet Warriors: Earth Files - Book 1 by Anna Carven
Rated: 4.08 of 5 stars · 12 ratingsAs much as Rykal thought she was sheer perfection in that outfit, he wanted to flick out a claw and gently slice the garment from top to bottom so he could pay homage to her naked form. Later. She wouldn’t escape his tender clutches. But he would behave himself for now, because this particular outing was apparently an important event in Human culture...
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.