Book picks similar to
Sigil by Addison Cain


dark
sci-fi
reverse-harem
fantasy

Gladiator


Anna Hackett - 2016
    Dumped into an arena on a desert planet on the outer rim, she finds herself face to face with a big, tattooed alien gladiator…the champion of the Kor Magna Arena. A former prince abandoned to the arena as a teen, Raiden Tiago has long ago earned his freedom. Now he rules the arena, but he doesn’t fight for the glory, but instead for his own dark purpose—revenge against the Thraxian aliens who destroyed his planet. Then his existence is rocked by one small, fierce female fighter from an unknown planet called Earth. Harper is determined to find a way home, but when she spots her best friend in the arena—a slave of the evil Thraxian aliens—she’ll do anything to save her friend…even join forces with the tough, alpha male who sets her body on fire. But as Harper and Raiden step foot onto the blood-soaked sands of the arena, Harper worries that Raiden has his own dangerous agenda…

Kidnapped By Her Husbands


Rebecca Royce - 2016
    The unborn child growing inside her is all that keeps them from making her pay for the sins she's committed--sins she cannot recall. But when five sexy strangers, claiming to be her husbands, kidnap her and bring her to safety, Melissa fears she can't trust them. All she can remember is what she was taught under the prison's watchful, vengeful eye: to hate them. But how can she hate--or love--what she can't remember?

Ruth's Bonded


V.C. Lancaster - 2015
    At first. But when she's forced to get along with her furry, tailed cellmate (and her clothes get stolen) things slowly start to change between them. After they escape onto an unknown alien planet, they're finally free to explore their feelings and each other, but can they survive with only each other to rely on and no way of communicating? Gron is from a matriarchal society where the males obey their Queens, so when a beautiful but strange female is dropped into his cell, he doesn't know what to think. Is she a victim like him, or is she being used by his captors to control him? Either way, he knows he must control his instincts or he will end up inescapably Bonded to her. The delicate Queen needs his help to survive, and it is his duty to serve her, but can he do it without losing his heart?

Born of Night


Sherrilyn Kenyon - 1995
    Expertly trained and highly valued, the League Assassins are the backbone of the government. But not even the League is immune to corruption . . .Command Assassin Nykyrian Quikiades once turned his back on the League—and has been hunted by them ever since. Though many have tried, none can kill him or stop him from completing his current mission: to protect Kiara Zamir, a woman whose father’s political alliance has made her a target. As her world becomes even deadlier, Kiara must entrust her life to the same kind of beast who once killed her mother and left her for dead. Old enemies and new threaten them both and the only way they can survive is to overcome their suspicions and learn to trust in the very ones who threaten them the most: each other.

Mercenary Instinct


Ruby Lionsdrake - 2014
    But Ankari Markovich needs a few archaeological samples for her latest business venture, a venture that might prove lucrative enough to move her family off the impoverished planet where she grew up. Unfortunately, she has no sooner collected her samples than she’s captured by a band of brawny mercenaries. The captain might be handsome, but he’s intent on turning her over to some finance lord who has, for reasons unknown, put a bounty on her head, a ridiculously large one at that. If she can’t figure out a way to escape before she’s delivered to the lord’s home world, she could be forced into a life of indentured servitude—or worse.Captain Viktor Mandrake doesn’t usually take on piddling bounty hunting gigs, but when his intelligence officer informs him of a criminal on a nearby planet, he decides it wouldn’t hurt to take a shuttle down to collect the woman. But Ankari Markovich is trouble from the start, nearly eluding his elite forces, then fighting and tricking his people left and right. He finds himself admiring her spirit, but according to her warrant, she’s a criminal. The safest thing is to keep her in the brig and ignore her until she can be handed off to the man who wants her.But the situation grows more complicated when other bounty hunters show up, wanting to claim Ankari for themselves. Thanks to this woman, Viktor’s ship is in danger, his crew members are going missing, and he’s fighting enemies he never asked for in a jungle in the middle of a hurricane. He’s either going to strangle Ankari… or fall in love. Either scenario could get him killed.Mercenary Instinct is a full-length, stand-alone novel of 90,000 words. It is part of the “Mandrake Company” series of science fiction romance stories and is recommended for readers who enjoy space-based adventure (such as Firefly) and steamy love stories (in the style of Linnea Sinclair).

Brianna


Judy Mays - 2004
    In the process, she was captured by an alien scientist and became a experiment herself-a sexual experiment. Captain Alalakan don al' Chardadon was not about to let Dr. Rodak don al' Bakom conduct his ridiculous sexual experiments on an inhabitant from a newly discovered world. Even if it meant he had to marry the Earth woman to protect her. Marriages were easily dissolved on his planet, and this alien was very beautiful. Besides, he wanted her-in his bed, on the floor, against the wall, or anywhere else he could think of. Brianna had to choose-marry the captain or try to find another way to escape Bakom. Easy choice. Even though he was an alien, Char was the most desirable man she'd ever met. So, Brianna finds herself hurtling through space married to a very sexy alien-with a very flexible tail-from a planet where hedonism is the norm and there are three sexes: male, female, and hermaphrodite. But Bakom wanted Brianna too, and is willing to do anything to get her back.

The Forgotten Commander


K. Webster - 2019
    Our future is bleak.Longevity is a luxury we can’t afford.The most we can hope for is survival.We’ve all but given up when an opportunity presents itself.Five females—a chance at a future.Procuring these women went against everything I’d been taught, but desperate times call for desperate measures.They’re ours now.Asleep and made ready for breeding.We won’t die out—lost and forgotten.It’s our destiny to grow and once again inhabit our lonely planet.I am Breccan Aloisius, the forgotten commander.My people will have the future they deserve.I’ll make sure of it.My mind is made up…until she wakes and nothing goes as planned.

Cosmic Bounty


Angela Castle - 2012
    Her pale beauty stirs their lust, and her accepting nature softens their hearts. All four brothers agree she belongs to them—forever.Stolen from Earth by greedy alien traders, Kat is sold to not one, but four, large muscled, alien soldiers. She’s shocked to discover they plan to share her!With their sexy red skin and gentle seduction, Kat finds it impossible to resist. All too soon, she loses her heart to the brothers. When they take her to Galafrax, she struggles to learn about her newly adopted planet, but other forces seek to tear her from the men. Her quads will do anything to get her back between them, where she belongs.

Omega's Deception


Lillian Sable - 2018
     Ianthe keeps her freedom because her dynamic is a carefully guarded secret. Omegas are rare and highly prized, but they have no rights. An Omega is the property of whatever Alpha is strong enough to claim her. Ianthe toils in the slums, pretending to be Beta, so she can hide from a world that wants to make her a pet in a gilded cage. Legion, the Alpha and brutal cartel boss, believes her to be Beta. When he discovers her deception, nothing will stop him from claiming her. Omega's Deception is the first in a brand new series, featuring an over the top Alpha hero in a dystopian world. This book is for anyone who likes their romance with power exchange and a splash of darkness, especially fans of Addison Cain, Zoe Blake and Loki Renard.

Under His Heel


Adara Wolf - 2018
    His life has been one bad decision after the other, and now he's forced to work off his debt with a spaceship captain or risk a fate worse than death. Captain Tracht is respected and well-connected. Unfortunately, he also has some very questionable private interests, and makes no secret that he intends Alex to participate in them, whether he likes it or not. It's an experience of pain, humiliation, and tears, but somehow Alex finds himself growing less and less interested in his eventual release...

The Savage King


Michelle M. Pillow - 2005
    When his father unexpectedly dies, it’s his destiny to take the throne and all of the responsibility that entails. What he hadn’t prepared for is the troublesome prisoner that’s now his to deal with. Undercover Agent Ulyssa is no man’s captive. Trapped in a primitive forest awaiting pickup, she’s going to make the best out of a bad situation…which doesn’t include falling for the seductions of a king.

Kríe Captivity


Kora Knight - 2016
    Astrum Industries’ newest charted planet. Freshly discovered. Wholly unexplored. But that won’t be the case for long. Led by Captain Alec Hamlin, a team of explorers make an emergency landing and are soon confronted by their first Niran native. A huge male Kríe packed with muscle, baring small, black horns and fangs. Fortunately, he’s friendly. Or so he lets them believe. With the help of his pack, the Kríe takes Alec’s team captive, intending to sell them for profit. But these Nirans aren’t just shrewd, they’re arrogant and domineering. And most of all, extremely sexual. Which explains why, on their journey to peddle their new wares, they feed Alec’s team a powerful aphrodisiac. Nothing like some decadent entertainment on the side. Soon the team finds themselves feverishly trying to resist the growing urge to mount their seductive captors. But as passion prevails and unexpected bonds form, so much more is suddenly at stake. With no time left, will a shift in Kríe perspective be enough to change the fate of Alec’s team? Warning: Contains explicitly scorching gay sex with exotic and shamelessly kinky males of otherworldly descent.

Snow and the Seven Huntsmen


Zoe Blake - 2018
    Not one, but seven. They plan to steal my beauty, my innocence. Seven Hunters to track me down and claim me as theirs. I try to run, but it is hopeless. They have caught me. I am their prey, their prize, to do with as they please. But I will capture something far more precious… the Huntsmen’s hearts. Warning: In our Fairytales, there is danger in the shadows, the beasts bite and no Heroine is truly safe. If dark tales of danger, forced attraction and multiple partners offend you then please do not purchase.

The Breaker's Concubine


Ann Mayburn - 2011
    He vows to do everything he can to escape and keep from forming a psychic bond with his captors that would render him absolutely and totally in love. This proves difficult to do when the female Breaker assigned to turn him into a Concubine, Melania, is the epitome of his perfect woman. Melania has been raised and trained to help reluctant and abused Novices to break through their personal blocks and attain the ultimate prize of becoming a Concubine. When she is given Devnar to train, she finds herself in danger of doing the forbidden and falling in love with her Novice. This angry, scarred, and utterly seductive male tests her self-control like no other. Devnar and Melania find themselves at the heart of a galaxy wide political battle that will test a love that they must not acknowledge, and cannot live without, to its very limits.

Rees


Allyson James - 2005
    Males created to be tall, muscled, sexy, and… enhanced. They come in one of three levels pure sensual pleasure, games and wicked fun, or the ultimate barbarian complete with whip. They know how to bring a woman to ecstasy and exactly how to keep her there.When Lady Talan d'Urvey reads the diary of a woman who spent one wicked week with a Shareem, she longs to experience the same carnality in one last fling before she takes her vow of celibacy. She goes in search of a Shareem and finds Rees, tall and blond, with Shareem-blue eyes. Just looking into those eyes makes Talan wild with need.But Rees is a Shareem experiment that never should have been made. Rees is all the Shareem levels rolled into one, and then some. Rees is uncontrollable, Rees is unpredictable. Even Rees's creators could never, ever be sure exactly what he would do.