Adult Science Fiction Releases of the Second Half of 2021

The last time I did one of my book release features was last month when I shared middle-grade sci-fi releases of the second half of 2021, and I really liked doing that type of post despite the fact that it took me ages to go through all the books coming out.

Why adult and why science fiction? Well, I happened to reorganise my bookshelves yesterday and I was sorely disappointed by the number of physical adult sci-fi books on my shelves! I had quite a few YA and some that were just miscellaneous overall, but adult sci-fi? Almost none! This is almost laughable because I have been obsessed with adult sci-fi reads since I started book blogging with a passion–I have been hooked on Tammy’s reviews over at Books, Bones & Buffy!

And that brings by rant-y introduction to an end! Also, note that there aren’t any sequels or next-in-series listed here, because that would just create a hole I cannot climb out of haha! I hope you find something interesting in this long list of adult science fiction releases coming out soon!

release date: July 6

This psychological sci-fi thriller from a debut author follows one doctor who must discover the source of her crew’s madness… or risk succumbing to it herself.

Misanthropic psychologist Dr. Grace Park is placed on the Deucalion, a survey ship headed to an icy planet in an unexplored galaxy. Her purpose is to observe the thirteen human crew members aboard the ship—all specialists in their own fields—as they assess the colonization potential of the planet, Eos. But frictions develop as Park befriends the androids of the ship, preferring their company over the baffling complexity of humans, while the rest of the crew treats them with suspicion and even outright hostility.

Shortly after landing, the crew finds themselves trapped on the ship by a radiation storm, with no means of communication or escape until it passes—and that’s when things begin to fall apart. Park’s patients are falling prey to waking nightmares of helpless, tongueless insanity. The androids are behaving strangely. There are no windows aboard the ship. Paranoia is closing in, and soon Park is forced to confront the fact that nothing—neither her crew, nor their mission, nor the mysterious Eos itself—is as it seems. 

release date: July 6

From the critically acclaimed author of Jennifer Government and Lexicon comes mind-bending speculative psychological suspense about a serial killer pursuing his victim across time and space, and the woman who is determined to stop him, even if it upends her own reality.

I love you. In every world.

Young real estate agent Madison May is shocked when a client at an open house says these words to her. The man, a stranger, seems to know far too much about her, and professes his love–shortly before he murders her.

Felicity Staples hates reporting on murders. As a journalist for a midsize New York City paper, she knows she must take on the assignment to research Madison May’s shocking murder, but the crime seems random and the suspect is in the wind. That is, until Felicity spots the killer on the subway, right before he vanishes.

Soon, Felicity senses her entire universe has shifted. No one remembers Madison May, or Felicity’s encounter with the mysterious man. And her cat is missing. Felicity realizes that in her pursuit of Madison’s killer, she followed him into a different dimension–one where everything about her existence is slightly altered. At first, she is determined to return to the reality she knows, but when Madison May–in this world, a struggling actress–is murdered again, Felicity decides she must find the killer–and learns that she is not the only one hunting him.

Traveling through different realities, Felicity uncovers the opportunity–and danger–of living more than one life.

release date: July 13

Hugo Award-winner Becky Chambers’s delightful new series gives us hope for the future.

It’s been centuries since the robots of Earth gained self-awareness and laid down their tools.
Centuries since they wandered, en masse, into the wilderness, never to be seen again.
Centuries since they faded into myth and urban legend.

One day, the life of a tea monk is upended by the arrival of a robot, there to honor the old promise of checking in. The robot cannot go back until the question of “what do people need?” is answered.

But the answer to that question depends on who you ask, and how.
They’re going to need to ask it a lot.

Becky Chambers’ new series asks: in a world where people have what they want, does having more matter?

release date: July 13

Hawai‘i author Chris McKinney’s first entry in a brilliant new sci-fi noir trilogy explores the sordid past of a murdered scientist, deified in death, through the eyes of a man who once committed unspeakable crimes for her.

Year 2142: Earth is forty years past a near-collision with the asteroid Sessho-seki. Akira Kimura, the scientist responsible for eliminating the threat, has reached heights of celebrity approaching deification. But now, Akira feels her safety is under threat, so after years without contact, she reaches out to her former head of security, who has since become a police detective.

When he arrives at her deep-sea home and finds Akira methodically dismembered, this detective will risk everything—his career, his family, even his own life—and delve back into his shared past with Akira to find her killer. With a rich, cinematic voice and burning cynicism, Midnight, Water City is both a thrilling neo-noir procedural and a stunning exploration of research, class, climate change, the cult of personality, and the dark sacrifices we are willing to make in the name of progress.

release date: July 13

The Freedom Race, Lucinda Roy’s explosive first foray into speculative fiction, is a poignant blend of subjugation, resistance, and hope.

In the aftermath of a cataclysmic civil war known as the Sequel, ideological divisions among the states have hardened. In the Homestead Territories, an alliance of plantation-inspired holdings, Black labor is imported from the Cradle, and Biracial “Muleseeds” are bred.

Raised in captivity on Planting 437, kitchen-seed Jellybean “Ji-ji” Lottermule knows there is only one way fto escape. She must enter the annual Freedom Race as a runner.

Ji-ji and her friends must exhume a survival story rooted in the collective memory of a kidnapped people and conjure the voices of the dead to light their way home.

release date: July 20

Golden Girls meets The Expanse with a side of Babylon Five

Murder forces unlikely allies

On the eve of the planet Ileri’s historic vote to join the Commonwealth, the assassination of a government minister threatens to shatter everything. Private investigator Noo Okereke and spy Meiko Ogawa join forces with police chief Toiwa to investigate – and discover clues that point disturbingly toward a threat humanity thought they had escaped.

A threat that could destroy Ileri and spark an interplanetary war… unless the disparate team can work together to solve the mystery. 

release date: July 20

Catherynne M. Valente, the bestselling and award-winning creator of Space Opera and The Girl Who Circumnavigated Fairyland returns with The Past is Red, the enchanting, dark, funny, angry story of a girl who made two terrible mistakes: she told the truth and she dared to love the world.

The future is blue. Endless blue…except for a few small places that float across the hot, drowned world left behind by long-gone fossil fuel-guzzlers. One of those patches is a magical place called Garbagetown.

Tetley Abednego is the most beloved girl in Garbagetown, but she’s the only one who knows it. She’s the only one who knows a lot of things: that Garbagetown is the most wonderful place in the world, that it’s full of hope, that you can love someone and 66% hate them all at the same time.

But Earth is a terrible mess, hope is a fragile thing, and a lot of people are very angry with her. Then Tetley discovers a new friend, a terrible secret, and more to her world than she ever expected.

release date: July 20

From one of the most imaginative writers of her generation comes an extraordinary vision of the future…

Ven was once a holy man, a keeper of ancient archives. It was his duty to interpret archaic texts, sorting useful knowledge from the heretical ideas of the Burning Age—a time of excess and climate disaster. For in Ven’s world, such material must be closely guarded so that the ills that led to that cataclysmic era can never be repeated.

But when the revolutionary Brotherhood approaches Ven, pressuring him to translate stolen writings that threaten everything he once held dear, his life will be turned upside down. Torn between friendship and faith, Ven must decide how far he’s willing to go to save this new world—and how much he is willing to lose.

Notes from the Burning Age is the remarkable new novel from the award-winning Claire North that puts dystopian fiction in a whole new light.

release date: August 3

The year is 2072. At the lunar farside radio observatory, an old-school radio broadcast is detected, similar to those broadcast on Earth in the 1940s, but in an unknown language, coming from an impossible source, and originating at an equally impossible location—Proxima Centauri. While the nations of Earth debate making first contact, they learn that the Proximans are facing an extinction-level disaster, forcing a decision: will Earth send a ship on a multiyear trip to provide aid?

Interstellar travel is not easy, and by traveling at the speeds required to arrive before disaster strikes at Proxima, humans will learn firsthand the effects of Einstein’s Special Relativity and be forced to ponder the ultimate questions: Are we alone in the universe? What does it mean to be human?

release date: August 10

Diamond-sharp and savagely wry, The Body Scout is a timely science fiction thriller debut set in an all-too-possible future, perfect for readers of William Gibson.

Kobo has some problems. His cybernetics are a decade out of date, he’s got a pair of twin sister loan sharks knocking on his door, and his work scouting for a baseball league run by pharmaceutical companies is about to go belly-up. Things couldn’t get much worse.

Then his childhood best friend-Monsanto Mets slugger J.J. Zunz-is murdered at home plate.

Determined to find the killer, Kobo plunges into the dark corners and glittering cloud condos of a world ravaged by climate change and repeat pandemics, and where genetic editing and advanced drugs mean you can have any body you want–as long as you can afford it. But even among the philosophical Neanderthals, zootech weapons, and genetically modified CEOs, there’s a curveball he never could have called.

release date: August 17

In this claustrophobic science fiction thriller, a woman begins to doubt her own sanity and reality itself when she undergoes a dangerous experiment.

The Ganymede compound is a fresh start. At least that’s what Senna tells herself when she arrives to take part in a cutting-edge scientific treatment, where participants have traumatic memories erased.

And Senna has reasons for wanting to escape her past.

But almost as soon as the treatment begins, Senna finds more than just her traumatic memories disappearing. She hardly recognizes her new life or herself. Even though the symptoms for the process might justify the cure, Senna knows that something isn’t right. As her symptoms worsen, Senna will need to band together with the other participants to unravel the mystery of her present, and save her future.

release date: August 24

In Peter F. Hamilton and Gareth L. Powell’s action-packed sci-fi adventure Light Chaser, a love powerful enough to transcend death can bring down an entire empire.

Amahle is a Light Chaser – one of a number of explorers, who travel the universe alone (except for their onboard AI), trading trinkets for life stories.

But when she listens to the stories sent down through the ages she hears the same voice talking directly to her from different times and on different worlds. She comes to understand that something terrible is happening, and only she is in a position to do anything about it.

And it will cost everything to put it right.

release date: August 31

In the Watchful City explores borders, power, diaspora, and transformation in an Asian-inspired mosaic novella that melds the futurism of Lavie Tidhar’s Central Station with the magical wonder of Catherynne M. Valente’s Palimpsest.

The city of Ora uses a complex living network called the Gleaming to surveil its inhabitants and maintain harmony. Anima is one of the cloistered extrasensory humans tasked with watching over Ora’s citizens. Although ær world is restricted to what æ can see and experience through the Gleaming, Anima takes pride and comfort in keeping Ora safe from all harm.

All that changes when a mysterious visitor enters the city carrying a cabinet of curiosities from around the world, with a story attached to each item. As Anima’s world expands beyond the borders of Ora to places—and possibilities—æ never before imagined to exist, æ finds ærself asking a question that throws into doubt ær entire purpose: What good is a city if it can’t protect its people?

release date: September 7

A diverse team of broken, diminished former criminals get back together to solve the mystery of their last, disastrous mission and to rescue a missing and much-changed comrade… but they’re not the only ones in pursuit of the secret at the heart of the planet Dimmuborgir. The highly-evolved AI of the universe have their own agenda and will do whatever it takes to keep humans from ever controlling the universe again. This band of dangerous women, half-clone and half-machine, must battle their own traumas and a universe of sapient ageships who want them dead, in order to settle their affairs once and for all. 

Cassandra Khaw’s debut novel is a page-turning exploration of humans and machines that is perfect for readers of Ann Leckie, Ursula Le Guin, and Kameron Hurley.

release date: September 14

She lost everything. Now, she’s fighting back.

When Jaya Mill’s parents were killed and her brother was kidnapped in an attack on her childhood home, she saw only one future for herself: enlist in the Union Starfleet and learn to defend herself.

Now, as a lieutenant commander aboard the UNS Avalon, Jaya and her elite counterterrorism unit enlist the help of Tynan Vasuda, an alien scientist from the Szacante Federation, to investigate the potentially sinister research of the new and mysteriously well-funded Sons of Priam.

Across the stars, a bounty hunter named Marantos accepts a high-paying assassination job in hopes of putting more distance between herself and her estranged royal family. But that job draws her straight into the web that the Sons of Priam are weaving to capture the highest office of the United Human Nations.

As Marantos claws free from the Sons of Priam, her path intersects with Jaya and Tynan, and she must decide whether to keep running from her past or turn and fight this new threat. And as Jaya pushes to uncover the identity of the shadowy figure at the helm of the Sons of Priam, she begins to reveal what truly happened the night she lost her family.

What Jaya discovers will challenge everything she knows…

Don’t miss the first book in a space opera thrill ride for the ages, filled with explosive action, characters that leap off the pages, and plenty of mystery. It’s perfect for fans of The Expanse and Mass Effect.

release date: September 14

David Mitchell’s Cloud Atlas meets Octavia Butler’s Earthseed series, as acclaimed author Monica Byrne (The Girl in the Road) spins a brilliant multigenerational saga spanning two thousand years, from the collapse of the ancient Maya to a far-future utopia on the brink of civil war.

The Actual Star takes readers on a journey over thousands of years and six continents —collapsing three separate timelines into one cave in the Belizean jungle.

An epic saga of three reincarnated souls, this novel demonstrates the entanglements of tradition and progress, sister and stranger, love and hate. The book jumps forward and backward in time among a pair of twins who ruled a Maya kingdom, a young American on a trip of self-discovery, and two dangerous charismatics in a conflict that will determine the fate of the few humans left on Earth after massive climate change.

In each era, age-old questions about existence and belonging and identity converge deep underground. Because only in complete darkness can one truly see the stars.

release date: September 28

Good Omens meets The Long Way to a Small, Angry Planet in this defiantly joyful adventure set in California’s San Gabriel Valley, with cursed violins, Faustian bargains, and queer alien courtship over fresh-made donuts.

Shizuka Satomi made a deal with the devil: to escape damnation, she must entice seven other violin prodigies to trade their souls for success. She has already delivered six.

When Katrina Nguyen, a young transgender runaway, catches Shizuka’s ear with her wild talent, Shizuka can almost feel the curse lifting. She’s found her final candidate.

But in a donut shop off a bustling highway in the San Gabriel Valley, Shizuka meets Lan Tran, retired starship captain, interstellar refugee, and mother of four. Shizuka doesn’t have time for crushes or coffee dates, what with her very soul on the line, but Lan’s kind smile and eyes like stars might just redefine a soul’s worth. And maybe something as small as a warm donut is powerful enough to break a curse as vast as the California coastline.

As the lives of these three women become entangled by chance and fate, a story of magic, identity, curses, and hope begins, and a family worth crossing the universe for is found.

release date: September 28

The Murderbot Diaries makes first contact in this new, futuristic, standalone novel exploring sentience and artificial intelligence through the lenses of conflicted robot hero Unit Four, from Marina Lostetter, critically acclaimed author of Noumenon, Noumenon Infinity, and Noumenon Ultra.

When Unit Four—a biological soft robot built and stored high above the Jovian atmosphere—is activated for the first time, it’s in crisis mode. Aliens are attacking the Helium-3 mine it was created to oversee, and now its sole purpose is to defend Earth’s largest energy resource from the invaders in ship-to-ship combat.

But something’s wrong. Unit Four doesn’t feel quite right.

There are files in its databanks it can’t account for, unusual chemical combinations roaring through its pipes, and the primers it possesses on the aliens are suspiciously sparse. The robot is under orders to seek and destroy. That’s all it knows.

According to its handler, that’s all it needs to know.

Determined to fulfill its directives, Unit Four launches its ship and goes on the attack, but it has no idea it’s about to get caught in a downward spiral of misinformation, reprograming, and interstellar conflict.

Most robots are simple tools. Unit Four is well on its way to becoming something more….

release date: September 28

From the Pulitzer Prize–winning author of All the Light We Cannot See, perhaps the most bestselling and beloved literary fiction of our time, comes the highly anticipated Cloud Cuckoo Land.

Set in Constantinople in the fifteenth century, in a small town in present-day Idaho, and on an interstellar ship decades from now, Anthony Doerr’s gorgeous third novel is a triumph of imagination and compassion, a soaring story about children on the cusp of adulthood in worlds in peril, who find resilience, hope—and a book. In Cloud Cuckoo Land, Doerr has created a magnificent tapestry of times and places that reflects our vast interconnectedness—with other species, with each other, with those who lived before us, and with those who will be here after we’re gone.

Thirteen-year-old Anna, an orphan, lives inside the formidable walls of Constantinople in a house of women who make their living embroidering the robes of priests. Restless, insatiably curious, Anna learns to read, and in this ancient city, famous for its libraries, she finds a book, the story of Aethon, who longs to be turned into a bird so that he can fly to a utopian paradise in the sky. This she reads to her ailing sister as the walls of the only place she has known are bombarded in the great siege of Constantinople. Outside the walls is Omeir, a village boy, miles from home, conscripted with his beloved oxen into the invading army. His path and Anna’s will cross.

Five hundred years later, in a library in Idaho, octogenarian Zeno, who learned Greek as a prisoner of war, rehearses five children in a play adaptation of Aethon’s story, preserved against all odds through centuries. Tucked among the library shelves is a bomb, planted by a troubled, idealistic teenager, Seymour. This is another siege. And in a not-so-distant future, on the interstellar ship Argos, Konstance is alone in a vault, copying on scraps of sacking the story of Aethon, told to her by her father. She has never set foot on our planet.

Like Marie-Laure and Werner in All the Light We Cannot See, Anna, Omeir, Seymour, Zeno, and Konstance are dreamers and outsiders who find resourcefulness and hope in the midst of gravest danger. Their lives are gloriously intertwined. Doerr’s dazzling imagination transports us to worlds so dramatic and immersive that we forget, for a time, our own. Dedicated to “the librarians then, now, and in the years to come,” Cloud Cuckoo Land is a beautiful and redemptive novel about stewardship—of the book, of the Earth, of the human heart.

release date: October 12

The Matrix meets an Afro-futuristic retelling of Persephone set in a science fiction underworld of aliens, refugees, and genetic engineering in Jennifer Marie Brissett’s Destroyer of Light.

Having destroyed Earth, the alien conquerors resettle the remains of humanity on the planet of Eleusis. In the three habitable areas of the planet–Day, Dusk, and Night–the haves and have nots, criminals and dissidents, and former alien conquerors irrevocably bind three stories:

*A violent warlord abducts a young girl from the agrarian outskirts of Dusk leaving her mother searching and grieving.
*Genetically modified twin brothers desperately search for the lost son of a human/alien couple in a criminal underground trafficking children for unknown purposes.
*A young woman with inhuman powers rises through the insurgent ranks of soldiers in the borderlands of Night.

Their stories skate across years, building to a single confrontation when the fate of all—human and alien—balances upon a knife’s-edge.

release date: October 26

Tense and thrilling, Arthur C. Clarke Award winner Tade Thompson’s new science fiction is an unforgettable vision of humanity’s future among the stars.

The colony ship Ragtime docks in the Lagos system, having traveled light-years from home to bring thousands of sleeping souls to safety among the stars.

Some of the sleepers, however, will never wake – and a profound and sinister mystery unfolds aboard the gigantic vessel as its skeleton crew make decisions that will have repercussions for the entire system – from the scheming politicians of Lagos station to the colony of Nightshade and the poisoned planet of Bloodroot, poised for a civil war.

release date: November 9

From Africanfuturist luminary Okorafor comes a new science fiction novel of intense action and thoughtful rumination on biotechnology, destiny, and humanity in a near-future Nigeria.

Anwuli Okwudili prefers to be called AO. To her, these initials have always stood for Artificial Organism. AO has never really felt…natural, and that’s putting it lightly. Her parents spent most of the days before she was born praying for her peaceful passing because even in-utero she was wrong. But she lived. Then came the car accident years later that disabled her even further. Yet instead of viewing her strange body the way the world views it, as freakish, unnatural, even the work of the devil, AO embraces all that she is: A woman with a ton of major and necessary body augmentations. And then one day she goes to her local market and everything goes wrong.

Once on the run, she meets a Fulani herdsman named DNA and the race against time across the deserts of Northern Nigeria begins. In a world where all things are streamed, everyone is watching the reckoning of the murderess and the terrorist and the saga of the wicked woman and mad man unfold. This fast-paced, relentless journey of tribe, destiny, body, and the wonderland of technology revels in the fact that the future sometimes isn’t so predictable. Expect the unaccepted.

release date: November 16

The #1 New York Times bestselling author returns with a visionary technothriller about climate change.

Neal Stephenson’s sweeping, prescient new novel transports readers to a near-future world where the greenhouse effect has inexorably resulted in a whirling-dervish troposphere of superstorms, rising sea levels, global flooding, merciless heat waves, and virulent, deadly pandemics.

One man has a Big Idea for reversing global warming, a master plan perhaps best described as “elemental.” But will it work? And just as important, what are the consequences for the planet and all of humanity should it be applied?

As only Stephenson can, Termination Shock sounds a clarion alarm, ponders potential solutions and dire risks, and wraps it all together in an exhilarating, witty, mind-expanding speculative adventure.

release date: Novemver 16

In Adrian Tchaikovsky’s Elder Race, a junior anthropologist on a distant planet must help the locals he has sworn to study to save a planet from an unbeatable foe.

Lynesse is the lowly Fourth Daughter of the queen, and always getting in the way.

But a demon is terrorizing the land, and now she’s an adult (albeit barely) and although she still gets in the way, she understands that the only way to save her people is to invoke the pact between her family and the Elder sorcerer who has inhabited the local tower for as long as her people have lived here (though none in living memory has approached it).

But Elder Nyr isn’t a sorcerer, and he is forbidden to help, for his knowledge of science tells him the threat cannot possibly be a demon… 

release date: December 7

In his sci-fi debut, Bellecourt explores an alternate roaring 20s where a shell-shocked soldier must uncover latent telepathic abilities to save himself and the people around him.

Liam Mulcahey, a reclusive, shell-shocked veteran, remembers little of the Great War. Ten years later, when he is caught in a brutal attack on a Chicago speakeasy, Liam is saved by Grace, an alluring heiress who’s able to cast illusions. Though the attack appears to have been committed by the hated Uprising, Grace believes it was orchestrated by Leland De Pere–Liam’s former commander and the current President of the United States.

Meeting Grace unearths long-buried memories. Liam’s former squad, the Devil’s Henchmen, was given a serum to allow telepathic communication, transforming them into a unified killing machine. With Grace’s help, Liam begins to regain his abilities, but when De Pere learns of it, he orders his militia to eliminate Liam at any cost.

But Liam’s abilities are expanding quickly. When Liam turns the tables and digs deeper into De Pere’s plans, he discovers a terrible secret. The same experiment that granted Liam’s abilities was bent toward darker purposes. Liam must navigate both his enemies and supposed allies to stop the President’s nefarious plans before they’re unleashed on the world. And Grace is hiding secrets of her own, secrets that could prove every bit as dangerous as the President’s.

Go Marching In by Tamsyn Muir

[The book] isn’t simply under the sea, it’s about cyberpunk lesbian gunslingers at the end of the world. So I’ve got my heroine, who is a gunslinger retiree in her 40s who is completely done with that sh*t. Because I also love movies where they go to some guy in a cabin living out in the woods, and they’re like, “We need you back!” And he’s like, “No, all that’s behind me.”

That never gets to be a woman! Almost never. So I want to do that — dash of cyberpunk, big ol’ glop of cowboy — and I’m really looking forward to writing it.

From this Bustle interview

Prescribed Burn by Arkady Martine

A cyberpunk thriller climate-fiction procedural set in a future Los Angeles after the United States has fallen about “an arson investigator in a future LA torn apart by drought and wildfire who must uncover the secrets of the charred corpse of a water broker found at the site of her latest fire.”

Losing Gravity by Kameron Hurley

… pitched as Killing Eve meets Die Hard, in space

And that’s it so far! It took me hours and hours to compile this but it felt like it was so worth it since this is probably my first big project on this blog so far! I am planning on updating this list whenever new information comes in but sometimes life has sneaky ways of getting in the way of plans, so I’ll have to see how that goes!

Are there any titles that caught your eye? Any new adult science fiction releases I should add to this list?