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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.

Will you stand with the planet? Or is Earth Alone #SciFi by Daniel Arenson @DanielArenson #Military

Kayelle Allen

Will you stand with the planet? Or is it Earth Alone #Military #SciFi by Daniel Arenson @DanielArenson

They came from deep space.

They came to destroy us.

Fifty years ago, bloodthirsty aliens devastated the Earth.

Most of humanity perished.

We fell into darkness.

Now, we rise from the ashes.

Earth Alone by Daniel Arenson

Now we fight back.

Marco Emery was born into the war. After his mother is killed, he joins the Human Defense Force, Earth's ragtag army.

Emery must survive basic training, become a soldier, and finally face the aliens in battle.

Against the alien onslaught, Earth stands alone.

But we will fight.

We will rise.

We will win.

If you loved Ender's Game, Starship Troopers, and Old Man's War, you'll love Earthrise, a new military science fiction series from a USA Today bestselling author.

Available on Amazon

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

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~ 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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A new book fair for #SciFi #Speculative #PostApocalypse #Dystopian and other books

Kayelle Allen

A new book fair for #SciFi #Speculative #PostApocalypse #Dystopian and other 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="A new book fair for #SciFi #Speculative #PostApocalypse #Dystopian and other books https://storyoriginapp.com/to/jVm2Q3h?via=kayelle" 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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Time to come out of hiding. Aurora Burning by Amie Kaufman @AmieKaufman and Jay Kristoff @misterkristoff #SciFi #YA #Read

Kayelle Allen

Time to come out of hiding. Aurora Burning by Amie Kaufman @AmieKaufman and Jay Kristoff @misterkristoff #SciFi #YA #Read

Usually, if there's a series, I share info about book one. But today, I'm showing you book two. Why? Because the cover is just so... yum.

As you know, tall blond heroes are my jam *cough Pietas cough*, and this image is too appealing for me to pass up.

Who says you can't judge a book by its cover? Oh yes you can.

Check out Aurora Burning by Amie Kaufman and Jay Kristoff.

Genre - YA SciFi, Space Opera

I featured this book in my newsletter some time back, and thought I'd share it with you too. Enjoy!

First, the bad news: an ancient evil--you know, your standard consume-all-life-in-the-galaxy deal--is about to be unleashed.

The good news? Squad 312 is standing by to save the day.

They've just got to take care of a few small distractions first.

Like the clan of gremps who'd like to rearrange their favorite faces.

And the cadre of illegit GIA agents with creepy flowers where their eyes used to be, who'll stop at nothing to get their hands on Auri.

Then there's Kal's long-lost sister, who's not exactly happy to see her baby brother, and has a Syldrathi army at her back.

With half the known galaxy on their tails, Squad 312 has never felt so wanted.

When they learn the Hadfield has been found, it's time to come out of hiding. Two centuries ago, the colony ship vanished, leaving Auri as its sole survivor. Now, its black box might be what saves them.

But time is short, and if Auri can't learn to master her powers as a Trigger, the squad and all their admirers are going to be deader than the Great Ultrasaur of Abraaxis IV.

Shocking revelations, bank heists, mysterious gifts, inappropriately tight bodysuits, and an epic firefight will determine the fate of the Aurora Legion's most unforgettable heroes--and maybe the rest of the galaxy as well.

Available on Amazon

[bctt tweet="Time to come out of hiding. Aurora Burning by Amie Kaufman @AmieKaufman and Jay Kristoff @misterkristoff #SciFi #YA #Read" 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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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.

Read more →

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.

Read more →

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.

Read more →