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Category: Science Fiction Books

Also called SF, Sci Fi, Scifi and sci-fi. A genre of speculative fiction with imaginative concepts, especially futuristic ones.

All Sci-Fi Books Giveaway #Cyberpunk #Dystopian #SciFi #PostApocalypse #Aliens

Kayelle Allen

All Sci-Fi Books Giveaway #Cyberpunk #Dystopian #SciFi #PostApocalypse #Aliens

Sci-Fi Book Fair for Free books

A bundle of high-caliber authors for lovers of SF/F.

This special event showcases all subgenres of sci-fi and may include cyberpunk, dystopian, fantasy, young adult, hard scifi, military, paranormal, post-apocalyptic, robots, sci-fi romance, soft scifi, space opera, technothrillers, time travel, urban fantasy, and more.

Join us! SF Free Book Event

[bctt tweet="All Sci-Fi Books Giveaway #Cyberpunk #Dystopian #SciFi #PostApocalypse #Aliens https://storyoriginapp.com/to/5Ts3tJy" username="KayelleAllen"]

 

 

 

Pick up the first story in the Bringer of Chaos series, Lights Out, free by signing up for my newsletter!
https://kayelleallen.com/reader-groups

Lights Out

Lights Out: Bringer of Chaos #SpaceOpera #SciFi

Origin of Pietas

Origin of Pietas: Bringer of Chaos #SpaceOpera #SciFi

Forged in Fire

Forged in Fire: Bringer of Chaos #SpaceOpera #SciFi

You'll find these characters mentioned in many books in my story universe.
Download a printable book list and check them off as you read.

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Summer Sci-Fi and Space Opera Book Fair Giveaway #SciFi #Books

Kayelle Allen

Summer Sci-Fi and Space Opera Book Fair Giveaway #SciFi #Books

Sci-Fi Book Fair for Free books

A bundle of high-caliber authors for lovers of SF/F.

This special event showcases all subgenres of sci-fi and may include cyberpunk, dystopian, fantasy, young adult, hard scifi, military, paranormal, post-apocalyptic, robots, sci-fi romance, soft scifi, space opera, technothrillers, time travel, urban fantasy, and more.

Join us! SF Free Book Event

[bctt tweet="Summer Sci-Fi and Space Opera Book Fair Giveaway #SciFi #Books https://storyoriginapp.com/to/pSu5kEd?via=kayelle" username="KayelleAllen"]

 

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Read some SF/F books for zero dollars #FreeBooks #BookFair #SciFi

Kayelle Allen

Free Science Fiction and Fantasy

Pick up now ~ ends May 15, 2021
Read some SF/F books for zero dollars #FreeBooks #BookFair #SciFi

A Book Fair for Lovers of SF/F Romance

A bundle of high-caliber authors for lovers of SF/F Romance.

This special event showcases all subgenres and flavors of sci-fi romance and may include cyberpunk, dystopian, fantasy, young adult, hard scifi, military, paranormal, post-apocalyptic, robots, sci-fi romance, soft scifi, space opera, technothrillers, time travel, urban fantasy, and more.

Join us! Romance Book Event

[bctt tweet="Read some SF/F books for zero dollars #FreeBooks #BookFair #SciFi https://storyoriginapp.com/to/FhMfPu3" username="KayelleAllen"]

 

Tales of the Chosen

Pick up Wulf for $0.00 -- This book is permafree on all retailers.
Then pre-order Alitus and Jawk to claim the entire Tales of the Chosen series.

These books are in the same universe as the Antonello Brothers, and Antonello Brothers: Immortal books.
Click the cover for a universal buy link. Click the title for the book page on this website.

You'll find these characters mentioned in many books in my story universe.
Download a printable book list and check them off as you read.

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Grab a book for zero moolah with this #SciFi #SpaceOpera #Giveaway

Kayelle Allen

Grab a book for zero moolah with this #SciFi #SpaceOpera #Giveaway Multiple authors and many genres

Sci-Fi Book Fair for Free books

A bundle of high-caliber authors for lovers of SF/F.

This special event showcases all subgenres of sci-fi and may include cyberpunk, dystopian, fantasy, young adult, hard scifi, military, paranormal, post-apocalyptic, robots, sci-fi romance, soft scifi, space opera, technothrillers, time travel, urban fantasy, and more.

Join us! SF Free Book Event

[bctt tweet="Grab a book for zero moolah with this #SciFi #SpaceOpera #Giveaway Multiple authors and many genres https://storyoriginapp.com/to/AQQvfOY" username="KayelleAllen"]

 

Pick up the first story in the Bringer of Chaos series, Lights Out, free by signing up for my newsletter!
https://kayelleallen.com/reader-groups

Lights Out

Lights Out: Bringer of Chaos #SpaceOpera #SciFi

Origin of Pietas

Origin of Pietas: Bringer of Chaos #SpaceOpera #SciFi

Forged in Fire

Forged in Fire: Bringer of Chaos #SpaceOpera #SciFi

You'll find these characters mentioned in many books in my story universe.
Download a printable book list and check them off as you read.

Read more →

Join multiple authors in a Kindle Unlimited #BookFair designed to beat the winter blues #Read #Books

Kayelle Allen

Join multiple authors in a Kindle Unlimited #BookFair designed to beat the winter blues #Read #Books

Book Fair for Kindle Unlimited books

Beat the winter blues with a book fair for Kindle Unlimited books. Check out this bundle of multiple authors for book lovers.

This special event showcases all genres, and focuses on books in a series. Once you try one, you can read many more.

Join us! Kindle Unlimited Event

Relax! Sit back with a cup of tea and read a good book #BookFair #Books #Read

[bctt tweet="Join multiple authors in a Kindle Unlimited #BookFair designed to beat the winter blues #Read #Books https://storyoriginapp.com/to/8mxU6zm" username="KayelleAllen"]

 

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Good Sci-Fi to Read: Winter World (Long Winter Trilogy #1) by AG Riddle @Riddlist #SciFi #Survival

Kayelle Allen

Read Winter World (Long Winter Trilogy Book 1) by AG Riddle @Riddlist #SciFi #Survival

A new ice age...

and a shocking discovery...

will change humanity forever.

From the Amazon Charts and Wall Street Journal bestselling author with over FOUR MILLION COPIES sold worldwide comes an epic novel with an unforgettable twist.

* Longlisted for the Wilbur Smith Award for best published novel. *

In the near future, a new ice age has begun.

Humanity stands on the brink of extinction.

Desperate for answers, scientists send probes into the solar system to take readings. Near Mars, they identify a mysterious object moving toward the Sun. Is it the cause of the ice age? Or could it be humanity's only hope of survival?

With time running out, NASA launches a mission to make contact. But the object isn't what anyone thought. In the dark of space, alone, the team makes a discovery that will change the course of human history—and possibly end it.

Filled with real science and fascinating details, Winter World is that unique blend of fact and fiction that could completely change how you see our planet—and humanity's future. For those intrepid souls starting this bestselling trilogy, be warned: you may well be up late into the night turning the pages.

Get this book on Amazon

https://amzn.to/382S1vN

[bctt tweet="Read Winter World (Long Winter Trilogy Book 1) by AG Riddle @Riddlist #SciFi #Survival https://amzn.to/382S1vN" username="KayelleAllen"]

Download a printable book list or a list of trigger warnings for all books. Claim your immortality by signing up for my newsletter

Immortal Reviews Rock & Rule - Join the Review Team

~ Copyright ©2025 Kayelle Allen. All rights reserved ~ Kayelle Allen participates in the Amazon Services LLC Associates program, an affiliate advertising program which provides the means for sites to earn fees by advertising and linking to Amazon.com. Amazon and the Amazon logo are trademarks of Amazon.com. If you purchase an item listed on the site from Amazon.com, Kayelle will earn a small commission. Other sites might be affiliate links as well. These will not result in higher prices for you. Thank you for your support!

My characters may be found in multiple books in my story universe. Pietas images from Nik Nitsvetov Pietas cosplays.

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Legionnaire (Galaxy’s Edge Book 1) Jason Anspach and Nick Cole #SciFi #SpaceOpera

Kayelle Allen

Legionnaire (Galaxy's Edge Book 1) Jason Anspach and Nick Cole #SciFi #SpaceOpera

The Galaxy is a Dumpster Fire

A hot, stinking, dumpster fire. And most days I don’t know if the legionnaires are putting out the flames, or fanning them into an inferno.

A hostile force ambushes Victory Company during a reconnaissance-in-force deep inside enemy territory. Stranded behind enemy lines, a sergeant must lead a band of survivors against merciless insurgents on a deadly alien world somewhere along the galaxy’s edge. With no room for error, the Republic’s elite fighting force must struggle to survive under siege while waiting on a rescue that might never come.

Join Victory Company as they fight for their lives. When you think you’ve surrounded the Legion... you’ve just made your last mistake.

Get this book on Amazon

https://amzn.to/30oLlEo

[bctt tweet="Legionnaire (Galaxy's Edge Book 1) Jason Anspach and Nick Cole #SciFi #SpaceOpera https://amzn.to/30oLlEo" username="KayelleAllen"]

Download a printable book list or a list of trigger warnings for all books. Claim your immortality by signing up for my newsletter

Immortal Reviews Rock & Rule - Join the Review Team

~ Copyright ©2025 Kayelle Allen. All rights reserved ~ Kayelle Allen participates in the Amazon Services LLC Associates program, an affiliate advertising program which provides the means for sites to earn fees by advertising and linking to Amazon.com. Amazon and the Amazon logo are trademarks of Amazon.com. If you purchase an item listed on the site from Amazon.com, Kayelle will earn a small commission. Other sites might be affiliate links as well. These will not result in higher prices for you. Thank you for your support!

My characters may be found in multiple books in my story universe. Pietas images from Nik Nitsvetov Pietas cosplays.

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#BookFair for Sci-Fi & Fantasy Ends Mar 31 #SciFi #Books

Kayelle Allen

#BookFair for Sci-Fi & Fantasy Bargains Feb 25-Mar 31 #SciFi #Books

Sci-Fi Special Price Book Fair

A bundle of high-caliber authors for lovers of SF/F. All books are at a sale price.

This special event showcases all subgenres of sci-fi and may include cyberpunk, dystopian, fantasy, young adult, hard scifi, military, paranormal, post-apocalyptic, robots, sci-fi romance, soft scifi, space opera, technothrillers, time travel, urban fantasy, and more.

Join us! Special Price Book Event

[bctt tweet="#BookFair for Sci-Fi & Fantasy Bargains Feb 25-Mar 31 #SciFi #Books https://storyoriginapp.com/to/VTYBslh" username="KayelleAllen"]

 

Pick up Lights Out

 

Get a Free Book

Pick up a Bringer of Chaos starter set when you subscribe to my newsletter.
You'll get Lights Out, plus Lights Out: Behind the Scenes
Start your Immortal Journey by becoming a Citizen of Tarth.

KayelleAllen.com/Reader-Groups

Behind the Scenes of Lights Out

free space opera

If you prefer Science Fiction, Space Opera, and Fantasy, subscribe to this newsletter.

free space opera

If you prefer Romance themes in Science Fiction, Space Opera, and Fantasy, subscribe to this newsletter.

Each newsletter gets the opportunity to read my books for free. I also share news about exclusive contests and giveaways, and provide members-only links. You can unsubscribe at any time.

For the Citizen's Journey, you'll get one email each week for six weeks from the Empress of Tarth* with inside secrets and info unavailable anywhere else. Once you qualify as a citizen, you can start your Immortal Journey. In that series, you'll get emails each week for six weeks from the immortal king, Pietas*, himself.

 

*It's really just me. WiFi between here and Tarth is killer expensive. 😉

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Read the Reijorling in the Sinister Delites series by Leona Windwalker @ShroudedDancer #MMRomance #OmegaVerse

Kayelle Allen

Read the Reijorling in the Sinister Delites series by Leona Windwalker @ShroudedDancer #MMromance #Omegaverse

The Reijorling by Leona Windwalker

I've lived my entire life on Kleptha IV, on my family's elmgern ranch.

With my davatir away serving the Empire, I will have no one to preside over my Year of Seeking.

When the raids begin, it becomes obvious that war is on the horizon. My only parent is recalled to active duty, to fly one of the great warships of the Kordolian Empire.

I'm twenty-three and like my age-peers, the next year should have been filled with chaperoned parties, short-term internships, and social introductions, called the Year of Seeking. At the end, my twenty-fourth natal day party would have seen two announcements.

One, which of the internships piqued my interest enough for me to pursue it as my specialty.

The second, a betrothal to a social and, hopefully, romantic match.

The Reijorling is a sci fi m/m omegaverse tale based on the classic tale, A Little Princess. Grim and Sinister Delights is a dark romance series based on classic fairy tales and stories.

You will find standalone tales of gay romance that range in darkness and kinks. If you dare to take the challenge, read them all to find yourself lost in a classic that you think you know. These stories are for adult readers and may contain morally ambiguous themes.

[bctt tweet="Read the Reijorling in the Sinister Delites series by Leona Windwalker @ShroudedDancer #MMRomance #OmegaVerse https://storyoriginapp.com/swaps/84f0e186-55a8-11eb-84f0-7f60304fdcb0" username="KayelleAllen"]

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