Sci fi is a type of speculative fiction that looks ahead and asks “what’s next?” You can also check out these subcategories (a-g):
alien invasion | alien races | alternate/parallel reality / alternative history | atompunk | biopunk | candlepunk | christian | cli-fi | clockpunk | colonization | comedy | cyberpunk | cyberspace | decopunk | detective | dieselpunk | dying earth | dystopian & post-apocalyptic | first contact | frontier | furry | galactic empire | gothpunk | greenpunk
Note: these books are currently sorted by release date, with newest first.
Word Count: 102000
Summary: Ancient voices reveal a terrible secret: human scientists created the kresnas, devourers of life and sanity. Not only created, but also used in terrible, torturous experiments, turning them against their creators. Romenel's dilemmas pile up until he's lost in them. How can he destroy all the hordes of kresnas at once and is it morally defensible to do so? What other solution is there if humans are to survive? What should he do about the beautiful warrior, Kyliki, since he has no place in her world and she has none in his? And, hang it all, if he can resolve these things, what in blazes is he going to do about the mess of a succession war raging back home?
Word Count: 90000
Summary: Biology professor Roman Janz was walking across campus and planning his next plant-collecting trip to Brazil, when something stung him on the neck. And now… now he’s wandering in the dark, in the blue, floating, disembodied, and confused. There has to be a good explanation, if he can just find someone, anyone, he can actually talk to about it. Xavier Faulkner is intelligent, creative, and made millions when he sold his tech-security company. But all his wealth and skills couldn’t keep his sister Tam from being poisoned by food contamination. She lived, but her health was damaged, and her job as a cop is gone. In the antebellum house he moved them to, Xavier hopes to find both a distraction and maybe a purpose for their lives. But the old house seems to come with strange noises, and odd blue lights, and maybe― if Xavier isn’t just going crazy― a naked guy, walking away into the blue… This story was written as a part of the M/M Romance Group's "Love’s Landscapes" event. Group members were asked to write a story prompt inspired by a photo of their choice. Authors of the group selected a photo and prompt that spoke to them and wrote a short story. Dear Author, I just moved into this old antebellum home I bought with the intentions of restoring. I often find myself awoken in the night by strange noises I cannot identify or hear during the day. At first, I think it’s just a dream… this seemingly phantom always walking away. Who is he and how can I get him to finally turn around and see me? 79,000 words
Word Count: 15400
Summary: Space ship Lieutenant Matthew Ferris has desired Daniel Peters, his ship’s newest recruit, from the moment he saw him. But Peters is a lowly private and as the senior officer, Ferris knows he must wait for a sign that his feelings are returned before making an approach. When Peters follows him into a two-man capsule after a mission, Ferris thinks all his dreams are about to come true. What he doesn’t expect is to discover a scandal that could tear his ship apart. Some call it rough play, he calls it unacceptable. A novella in the Aurigan Space Series. Gay sci-fi romance.
Word Count: Information not available
Summary: 
Ten years ago, roboticist Forbes Pohle received a visit from time-traveler Oliver Lennox. “Wait for me,” Oliver said. Now a decade has come and gone, and Oliver has returned. However, Forbes never dreamed Oliver would reappear as the point man for a gang of technology thieves breaking into his lab. He finds the younger Oliver just as sexy and even more annoying; still, he must convince him their happily-ever-after is meant to be—but he only has the time it takes his robotic cat Jeepers to thwart the thieves to do it. After waiting so long, he could lose everything in the span of seconds.
Word Count: 69300
Summary: Vassily Belikov, composer and pampered son of privilege, suffered neurological damage in the accident that killed his father. Resentful of being treated as an invalid, he lives as a recluse, dependent on his mother. That changes the day she brings home a new husband with two sons of his own. When deep-space pirates capture Vassily's mother, he's left to the mercy of his cruel, amoral stepfather. Fighting addiction and his physical shortcomings, he's forced to seek out the criminal mastermind Baba Yaga for a crucial piece of equipment. While she agrees to deal with him if he beats his Exoticus addiction, paranoia and mysterious intentions infuse her household. Drawn to her fierce, suspicious youngest son, certain his actions are all carefully observed, Vassily must find the courage to face both his fears and his desires if he expects to survive.
Word Count: 39865
Summary: The boys desperately need a vacation. With the not-quite-ill-gotten gains from the Frog incident, Shax takes the Brimstone's crew to the exclusive resort planet, Opal, for some much needed rest and relaxation. The resort has everything a demon prince and his crew could want, but an incident on the Trauma Ball court has Ness stalking off in anger and sends events swiftly spiraling out of control. Loving a demon isn't easy, as Ness has discovered, and harder still for a newly fallen who's still sorting out what that means. A new friend lending a sympathetic ear helps until Ness learns too late that friendship was the last thing on BJ's mind. Shax will need every bit of his cunning and his legendary luck to save his Ness as he’s drawn into a web of criminal experiments and…pink hedgehogs?
Word Count: Information not available
Summary: A solar powered girl. A ballerina vigilante. A boy with an alien sharing his brain. A girl with a black hole for her heart. And, a werewolf with confidence issues. This is the next generation of heroes Doc Silence has gathered together, a random collection of amazing kids he hopes to train to make the world a better place. But Silence isn't the only one collecting super-powered teenagers. In the shadows, a dark organization — long thought destroyed — has been building a better monster, combining sentient hurricanes with car crash survivors, crafting designer cyborgs, girls made of fire and boys made of pure rage. What is this mysterious organization's goal? And what does it have to do with Doc's past, and his team's future? Will Doc Silence have enough time to teach them to be heroes before they are called upon to save the world — and will his team be ready to accept the mantle as their generation's brightest stars? The Indestructibles introduces Jane, Kate, Billy, Titus, and Emily— Solar, Dancer, Straylight, Fury, and Entropy — to the world as they learn how to use their bizarre powers. Along the way, they also discover something about themselves and whether they have what it takes to save the world. Meanwhile, the mercenary Agent Black and the mysterious Rose find themselves pawns of a villainous organization who plan on changing the world, starting with the creation of a living, breathing, sentient storm system they're able to bend to their will. The Indestructibles, coming soon to a neighborhood near you.
Word Count: 100300
Summary: Traveling has always frightened Marya, but when the Ktar chooses her to protect the heir on his confirmation journey, she fights panic. A prophecy concerning the heir's death, ominous dreams of a mysterious city, and news that one of the heir's companions will betray him all point to disaster. Unfortunately, the discovery of the assassin's identity is only the beginning. His menace pales in comparison to the ancient evil lurking in the mountains. When Marya is trapped and the men with her enslaved, she is faced with two choices: surrender to the alien being who offers her power, or ally with the handsome assassin she sought to thwart. One way she loses her soul, the other she may lose her heart.
Word Count: 31368
Summary:
While Shax recovers from a near fatality, his shipmates have been busy. He's rather proud of them for taking the initiative and finding them a lucrative cargo run. His pride turns to outright horror, though, when he finds out what sort of cargo. Frogs. The one thing in the universe that incites mindless panic in Shax. Unfortunately, he also soon discovers that a healthy fear of frogs doesn't prevent frog-driven disasters.
An unlikely series of overlapping mishaps hurls the Brimstone back to an even more unlikely point in history for a couple of demons and a fallen angel in a spaceship. Somehow they need to repair and refuel, and puzzle out how to get home. Time travel has never been so messy.
Word Count: 23000
Summary: Shax, the Demon Prince of Thieves, has reconciled himself to exile. He has a grand time careening around the galaxy as a high-end, intergalactic purloiner of pretties. Everything's going just fine, thank you very much. All right, fine, the anti-gravity cows are a bit problematic and some of his buyers are bad for his health, but he manages until he comes across an injured angel in a psychedelic alien jungle. He only rescues the wing boy for his golden feathers, but what Shax doesn’t know about angels could fill an intergalactic encyclopedia. Ness, since his full, angelic name is too much to deal with, is shockingly naïve and seems convinced that Shax and Verin have brought him aboard to torture him or perhaps eat him. Little by little, Shax begins to earn his trust in the quest to wheedle a golden feather or two from him until to Shax's dismay, the yearning after pretties becomes a different sort of yearning entirely.
Word Count: 11000
Summary: Any landing you can crawl away from is a good one. A data privateer crash-lands on a barely habitable moon where he's rescued by a research scientist who refuses to show his face. Though suspicious and paranoid by necessity, Rhodi finds himself drawn to the soft-spoken man behind the mask. Professor Covington prefers being isolated with his research. He has good reason to limit human contact, but he can’t abandon anyone to the ravages of a fickle and dangerous environment. He knows Rhodi’s hiding things. It’s none of his business and his mysterious guest will leave once a nasty native virus has run its course. Strange how the thought makes him less happy by the hour.
Word Count: 43000
Summary: Lieutenant Jack Alexander has wasted years, waiting for his best friend, Marc Duran, to return his affections. Perhaps it is time to finally move on and find someone new. However, when Major Ethan Pattisson is sent to the planet Mayia to investigate the theft of hundreds of illegal weapons, Marc comes under suspicion, and Jack can’t help stepping in to save him. When Jack finds himself caught in the middle between Ethan and Marc, he discovers that unrequited love might soon be the least of his problems.
Word Count: Information not available
Summary: Part of the four-volume \"Bubbas of the Apocalypse\" series. Can\'t get much weirder than this.
Word Count: 24500
Summary: Heir to a wealthy shipping family, Adam S Hayes has his life carefully mapped out. Career, marriage, family. After establishing himself successfully as Captain of the Patrol Ship Revel, it is time for the next step. Marriage to Fiona Becker, daughter of the Capella space station manager, might not be the biggest romance of the year but there are strategic advantages in the alliance, and no-one is surprised when Fiona accepts his proposal. Everything is going according to plan ... until he meets Danyel King. Tall, dark and handsome and as open about himself as he is about his homosexuality, King throws all his plans into total confusion. Trapped underground together after an explosion, Hayes seizes the opportunity to try something he’s only dreamed of, but finds he is totally unprepared for the consequences - and the passion that flares between them. King knows exactly what he wants, and it isn’t to be someone’s secret lover! Troubled and confused, Hayes risks losing his chance for love as he finds himself torn between his heart and his head. Revised edition released 31st March 2016
Word Count: 10360
Summary: While the cell is sparse and cold, at least this one has a bed. The figure resting there is too thin; too still, the prominent bones the result of long starvation, the stillness the product of too much anguish and abuse. He watches, though. An anxious, intelligent mind still occupies this frail and failing body, one that watches and wonders about the new guard occupying his cell each night.
Word Count: 16500
Summary: Spaceship Captain Luke Matthews has kept his sexuality a secret. What happens when the crew finds out? Is Lieutenant Kent as straight as he always believed? Will he hit him or kiss him, or both?
Word Count: 96000
Summary: Three women, two planets, and a whale. For Marianne Woolsey, linguist and tutor, being empathically bonded to the leader of the Tolari turns out to be a bed of roses – complete with thorns. Especially thorns. With diplomatic relations severed and humans kicked out of Tolari space, the Earth Fleet ship Alexander is gone … for now … but Earth Central Command hasn’t given up trying to get Marianne back. As she struggles with surprises, nightmares, and a bond-partner who can’t be tamed, she just wants to figure out where she fits in a society that isn’t quite human. Laura Howard, the Admiral’s widow, only desires to be left in peace to gather the fragments of a shattered heart, but Central Command has plans for her, too. Meanwhile, the Sural’s apothecary is a serene and gifted healer who knows what – and who – she wants. Circumstances have conspired to deny her the man she’s always loved, but in the pursuit of his heart, she has an unexpected ally – in the depths of Tolar’s oceans. Daughters of Suralia is a sweet scifi romance.
Word Count: 24000
Summary: 1915. Teddy Roosevelt is building an empire. Only Pancho Villa stands in his way. The American Expeditionary Force under the command of General "Black Jack" Pershing has invaded Northern Mexico. Pancho Villa leads his revolutionary army in a desperate raid against the American force only to be outflanked. Just as Pershing's airships prepare to deliver the death blow, Pancho Villa is transported to a parallel Earth where he finds an unexpected ally and the technology that might just turn defeat into victory. Revolution of Air and Rust is a stand-alone novella set in the Empires of Steam and Rust world created by Robert E. Vardeman and Stephen D. Sullivan. A story filled with military action, espionage and gadgetry that's sure to satisfy fans of steampunk and alternate history.
Word Count: 41099
Summary: Terra is overcrowded, but a solution may have been found -- tucked away in Roswell is alien technology that leads to the creation of a method of space travel known as portaling . A party of soldiers and scientists led by Dr. Emma Bradley, Colonel John Berger, and Dr. Layton Tremayne are about to take what they believe is the first step into the unknown. But what they discover is not only a wonder but a puzzle. The city of Eden on the distant planet Nibiru has obvious Terran influences. Who was there before them? When Emma, John, and Layton return to Terra, they're dismayed to find things are even worse than they were when the trio left. The atmosphere is on the verge of toxicity and the population is reaching Malthusian proportions. Worse, there are plans afoot to portal the excess population off Terra to planets which may not be what their new inhabitants expect. Most won't survive. Then they learn that a platoon of soldiers were portaled to Eden for a planned invasion of Nibiru and the surrounding planets. Emma, John, and Layton scramble to stop the military action, but will they be able to take back the city that’s become their home?
Word Count: Information not available
Summary: We have always been here. For as long as there's been such a thing as sex, alternate sexual identities have been a fact of life. So why have we been so nearly invisible in recorded history and historical fiction? Connie Wilkins,the editor of this book, has assembled fourteen stories that span the centuries from ancient times to the Renaissance to the modern era, and explore alternate versions of our past. Their queer protagonists, who bend history in ways dramatic enough to change the world and subtle enough to touch hearts and minds, rescue our past from invisibility, and affirm our place and importance throughout all of history, past, present, and future. From Lethe Press
