Book picks similar to
A Matter of Oaths by Helen S. Wright


science-fiction
sci-fi
space-opera
fiction

The Outside


Ada Hoffmann - 2019
    But when she activates it, reality warps, destroying the space station and everyone aboard. The AI Gods who rule the galaxy declare her work heretical, and Yasira is abducted by their agents. Instead of simply executing her, they offer mercy – if she’ll help them hunt down a bigger target: her own mysterious, vanished mentor. With her homeworld’s fate in the balance, Yasira must choose who to trust: the gods and their ruthless post-human angels, or the rebel scientist whose unorthodox mathematics could turn her world inside out.

The First Sister


Linden A. Lewis - 2020
    As a priestess of the Sisterhood, she travels the stars alongside the soldiers of Earth and Mars—the same ones who own the rights to her body and soul. When her former captain abandons her, First Sister’s hopes for freedom are dashed when she is forced to stay on her ship with no friends, no power, and a new captain—Saito Ren—whom she knows nothing about. She is commanded to spy on Captain Ren by the Sisterhood, but soon discovers that working for the war effort is so much harder to do when you’re falling in love.Lito val Lucius climbed his way out of the slums to become an elite soldier of Venus, but was defeated in combat by none other than Saito Ren, resulting in the disappearance of his partner, Hiro. When Lito learns that Hiro is both alive and a traitor to the cause, he now has a shot at redemption: track down and kill his former partner. But when he discovers recordings that Hiro secretly made, Lito’s own allegiances are put to the test. Ultimately, he must decide between following orders and following his heart.

Sisters of the Vast Black


Lina Rather - 2019
    Now, the sisters of the Order of Saint Rita are on an interstellar mission of mercy aboard Our Lady of Impossible Constellations, a living, breathing ship which seems determined to develop a will of its own.When the order receives a distress call from a newly-formed colony, the sisters discover that the bodies and souls in their care—and that of the galactic diaspora—are in danger. And not from void beyond, but from the nascent Central Governance and the Church itself.

The Vanished Birds


Simon Jimenez - 2020
    Decades of travel through the stars are condensed into mere months for her, though the years continue to march steadily onward for everyone she has ever known. Her friends and lovers have aged past her; all she has left is work. Alone and adrift, she lives only for the next paycheck, until the day she meets a mysterious boy, fallen from the sky.A boy, broken by his past.The scarred child does not speak, his only form of communication the beautiful and haunting music he plays on an old wooden flute. Captured by his songs and their strange, immediate connection, Nia decides to take the boy in. And over years of starlit travel, these two outsiders discover in each other the things they lack. For him, a home, a place of love and safety. For her, an anchor to the world outside of herself.For both of them, a family.But Nia is not the only one who wants the boy. The past hungers for him, and when it catches up, it threatens to tear this makeshift family apart.

Behind the Throne


K.B. Wagers - 2016
    Gunrunner. Fugitive.Quick, sarcastic, and lethal, Hailimi Bristol doesn't suffer fools gladly. She has made a name for herself in the galaxy for everything except what she was born to do: rule the Indranan Empire. That is, until two Trackers drag her back to her home planet to take her rightful place as the only remaining heir.But trading her ship for a palace has more dangers than Hail could have anticipated. Caught in a web of plots and assassination attempts, Hail can't do the one thing she did twenty years ago: run away. She'll have to figure out who murdered her sisters if she wants to survive.A gun smuggler inherits the throne in this Star Wars-style science fiction adventure from debut author K. B. Wagers. Full of action-packed space opera exploits and courtly conspiracy - not to mention an all-out galactic war - Behind the Throne will please fans of James S. A Corey, Becky Chambers and Lois McMaster Bujold, or anyone who wonders what would happen if a rogue like Han Solo were handed the keys to an empire . . .

Unconquerable Sun


Kate Elliott - 2020
    The legendary queen-marshal did what everyone thought impossible: expel the invaders and build Chaonia into a magnificent republic, one to be respected—and feared.But the cutthroat ambassador corps and conniving noble houses have never ceased to scheme—and they have plans that need Sun to be removed as heir, or better yet, dead.To survive, the princess must rely on her wits and companions: her biggest rival, her secret lover, and a dangerous prisoner of war.Take the brilliance and cunning courage of Princess Leia—add in a dazzling futuristic setting where pop culture and propaganda are one and the same—and hold on tight:This is the space opera you’ve been waiting for.

The Long Way to a Small, Angry Planet


Becky Chambers - 2014
    While the patched-up ship has seen better days, it offers her a bed, a chance to explore the far-off corners of the galaxy, and most importantly, some distance from her past. An introspective young woman who learned early to keep to herself, she’s never met anyone remotely like the ship’s diverse crew, including Sissix, the exotic reptilian pilot, chatty engineers Kizzy and Jenks who keep the ship running, and Ashby, their noble captain.Life aboard the Wayfarer is chaotic and crazy—exactly what Rosemary wants. It’s also about to get extremely dangerous when the crew is offered the job of a lifetime. Tunneling wormholes through space to a distant planet is definitely lucrative and will keep them comfortable for years. But risking her life wasn’t part of the plan. In the far reaches of deep space, the tiny Wayfarer crew will confront a host of unexpected mishaps and thrilling adventures that force them to depend on each other. To survive, Rosemary’s got to learn how to rely on this assortment of oddballs—an experience that teaches her about love and trust, and that having a family isn’t necessarily the worst thing in the universe.

Winter's Orbit


Everina Maxwell - 2021
    When tragedy befalls Imperial Prince Taam, his Thean widower, Jainan, is rushed into an arranged marriage with Taam's cousin, the disreputable Kiem, in a bid to keep the rising hostilities between the two worlds under control.But when it comes to light that Prince Taam's death may not have been an accident, and that Jainan himself may be a suspect, the unlikely pair must overcome their misgivings and learn to trust one another as they navigate the perils of the Iskat court, try to solve a murder, and prevent an interplanetary war... all while dealing with their growing feelings for each other.

Docile


K.M. Szpara - 2020
    To be a Docile is to forget, to disappear, to hide inside your body from the horrors of your service. To be a Docile is to sell yourself to pay your parents' debts and buy your children's future.Elisha Wilder’s family has been ruined by debt, handed down to them from previous generations. His mother never recovered from the Dociline she took during her term as a Docile, so when Elisha decides to try and erase the family’s debt himself, he swears he will never take the drug that took his mother from him. Too bad his contract has been purchased by Alexander Bishop III, whose ultra-rich family is the brains (and money) behind Dociline and the entire Office of Debt Resolution. When Elisha refuses Dociline, Alex refuses to believe that his family’s crowning achievement could have any negative side effects—and is determined to turn Elisha into the perfect Docile without it.

Amberlough


Lara Elena Donnelly - 2017
    The radical One State Party—nicknamed the Ospies—is gaining popular support to unite Gedda's four municipal governments under an ironclad, socially conservative vision.Not everyone agrees with the Ospies' philosophy, including master spy Cyril DePaul and his lover Aristide Makricosta, smuggler and emcee at the popular Bumble Bee Cabaret. When Cyril's cover is blown on a mission, however, he must become a turncoat in exchange for his life. Returning to Amberlough under the Ospies' watchful eye, Cyril enters a complex game of deception. One of his concerns is safeguarding Aristide, who refuses to let anyone—the crooked city police or the homophobic Ospies—dictate his life.Enter streetwise Cordelia Lehane, top dancer at the Bee and Aristide’s runner, who could be the key to Cyril’s plans—if she can be trusted. As the twinkling lights of nightclub marquees yield to the rising flames of a fascist revolution, these three will struggle to survive using whatever means—and people—necessary. Including each other.

The Luminous Dead


Caitlin Starling - 2019
    She also thought that the fat paycheck—enough to get her off-planet and on the trail of her mother—meant she’d get a skilled surface team, monitoring her suit and environment, keeping her safe. Keeping her sane.Instead, she got Em.Em sees nothing wrong with controlling Gyre’s body with drugs or withholding critical information to “ensure the smooth operation” of her expedition. Em knows all about Gyre’s falsified credentials, and has no qualms using them as a leash—and a lash. And Em has secrets, too . . .As Gyre descends, little inconsistencies—missing supplies, unexpected changes in the route, and, worst of all, shifts in Em’s motivations—drive her out of her depths. Lost and disoriented, Gyre finds her sense of control giving way to paranoia and anger. On her own in this mysterious, deadly place, surrounded by darkness and the unknown, Gyre must overcome more than just the dangerous terrain and the Tunneler which calls underground its home if she wants to make it out alive—she must confront the ghosts in her own head.But how come she can't shake the feeling she’s being followed?

Bonds of Brass


Emily Skrutskie - 2020
    He's spent seven years putting himself back together under its rule, joining an Umber military academy and becoming the best pilot in his class. Even better, he's met Gal Veres--his exasperating and infuriatingly enticing roommate who's made the Academy feel like a new home. But when dozens of classmates spring an assassination plot on Gal, a devastating secret comes to light: Gal is the heir to the Umber Empire. Ettian barely manages to save his best friend and flee the compromised Academy unscathed, rattled both that Gal stands to inherit the empire that broke him and that there are still people willing to fight back against Umber rule. As they piece together a way to deliver Gal safely to his throne, Ettian finds himself torn in half by an impossible choice. Does he save the man who's won his heart and trust that Gal's goodness could transform the empire? Or does he throw his lot in with the brewing rebellion and fight to take back what's rightfully theirs?

Persephone Station


Stina Leicht - 2021
    However, exactly two types of people drink at Monk’s back bar: members of a rather exclusive criminal class and those who seek to employ them.Angel—ex-marine and head of a semi-organized band of beneficent criminals, wayward assassins, and washed up mercenaries with a penchant for doing the honorable thing—is asked to perform a job for Rosie. What this job reveals will affect Persephone and put Angel and her squad up against an army. Despite the odds, they are rearing for a fight with the Serrao-Orlov Corporation. For Angel, she knows that once honor is lost, there is no regaining it. That doesn’t mean she can’t damned well try.

The Doors of Eden


Adrian Tchaikovsky - 2020
    She and Mal were chasing rumours of monsters when they found something all too real. Now Mal is back, but where has she been, and who is she working for?When government physicist Kay Amal Khan is attacked, the security services investigate. This leads MI5’s Julian Sabreur deep into terrifying new territory, where he clashes with mysterious agents of an unknown power ­who may or may not be human. And Julian’s only clue is some grainy footage ­– showing a woman who supposedly died on Bodmin Moor.Khan’s extradimensional research was purely theoretical, until she found cracks between our world and countless others. Parallel Earths where monsters live. These cracks are getting wider every day, so who knows what might creep through? Or what will happen when those walls finally come crashing down...

Ascension


Jacqueline Koyanagi - 2013
    When the desperate crew of a cargo vessel stops by her shipyard looking for her spiritually advanced sister Nova, Alana stows away. Maybe her boldness will land her a long-term gig on the crew. But the Tangled Axon proves to be more than star-watching and plasma coils. The chief engineer thinks he's a wolf. The pilot fades in and out of existence. The captain is all blond hair, boots, and ego . . . and Alana can't keep her eyes off her. But there's little time for romance: Nova's in danger and someone will do anything--even destroying planets--to get their hands on her.