Most Popular Science Fiction Books of 2025

Him

JD Kirk

Horror · Science Fiction · Crime Fiction · Suspense Thriller · Mystery

February 10, 2025

Warhammer 40,000

Krakenblood

Marc Collins

Science Fiction · Military Science Fiction · Warhammer

November 2025

Monsters in the Woods

Mated In The Woods

Lola Blix

Science Fiction · Alien Romance · Monster Romance · Adult · Romance

August 28, 2025

Wild Apocalypse Protectors #3

My Apocalypse Lumberjack

Celia Skye

Science Fiction · HEA Ending · Instalove Romance · Post-Apocalyptic · Zombies

October 27, 2025

Wild Apocalypse Protectors #2

My Apocalypse Cowboy

Celia Skye

Science Fiction · HEA Ending · Instalove Romance · Post-Apocalyptic · Zombies

October 27, 2025

Wild Apocalypse Protectors #1

My Apocalypse Mountain Man

Celia Skye

Science Fiction · HEA Ending · Instalove Romance · Post-Apocalyptic · Zombies

October 27, 2025

Black Hole Heart and Other Stories

K. A. Teryna

Science Fiction · Collection · Short Stories

October 14, 2025

Galaxy Raiders #1

Abyss

Ian Douglas

Science Fiction · Hard Science Fiction · Military Science Fiction · Space Opera

February 4, 2025

The Deep Man Trilogy #3

The Presence Malign

Michael Mersault

Science Fiction · Military Science Fiction · Space Opera

July 1, 2025

Esperance

Adam Oyebanji

Science Fiction · Hard Science Fiction · Thriller

May 20, 2025

The Last Sanctuary #7

The Last Sanctuary

Kyla Stone

Science Fiction · Dystopia · Post-Apocalyptic · Young Adult

October 31, 2025

Warhammer 40,000: The Twice Dead King

The Twice Dead King

Nate Crowley

Science Fiction · Military Science Fiction · Collection · Novella · Short Stories

December 2, 2025

Uncivil War #3

Uncivil War Reckoning

Bradley Wright, Jon Dudycha

Horror · Science Fiction · Post-Apocalyptic

June 30, 2025

Uncivil War #2

Uncivil War Evolution

Bradley Wright, Jon Dudycha

Horror · Science Fiction · Post-Apocalyptic

May 31, 2025

Uncivil War #1

Uncivil War

Bradley Wright, Jon Dudycha

Horror · Science Fiction · Post-Apocalyptic

April 30, 2025

Beyond and Within

Black Friday

Cheryl S. Ntumy

Science Fiction · Dystopia · Social Science Fiction · Anthology · Short Stories

April 15, 2025

Beyond and Within

Creative Futures

Allen Stroud

Science Fiction · Hard Science Fiction · Social Science Fiction · Anthology · Short Stories

November 11, 2025

Of Blood and Conquest

Dusk & Desire

Liana Valerian

Science Fiction · LGBTQ+ · Post-Apocalyptic · Adult · Romance

June 6, 2025

Of Blood and Conquest #1

Scars & Starlight

Liana Valerian

Science Fiction · Alien Romance · Fated Mates · Post-Apocalyptic · Adult

September 14, 2025

Warhammer 40,000

Interceptor City

Dan Abnett

Science Fiction · Military Science Fiction · Warhammer

November 18, 2025

Warhammer 40,000: Astra Militarum

Death and Duty

Uncredited

Science Fiction · Military Science Fiction · Anthology · Short Stories · Warhammer

November 18, 2025

The Billion Worlds #3

The Miranda Conspiracy

James L. Cambias

Science Fiction

February 4, 2025

The Greatest Comic Book Tale Ever Told

Michael Colon

Fantasy · Science Fiction · Superheroes

June 6, 2025

Nexus House #3

The End of Time

Rick Campbell

Science Fiction · Space Opera

October 14, 2025

Nexus House #2

Descent into Hellios

Rick Campbell

Science Fiction · Space Opera

July 15, 2025

Nexus House #1

The Final Stand

Rick Campbell

Science Fiction · Space Opera

April 22, 2025

Alien Universe

Alien: Perfect Organisms

Shaun Hamill

Horror · Science Fiction · Alien

November 18, 2025

Alien Universe

Alien: Cult

Gavin G. Smith

Horror · Science Fiction · Alien

December 30, 2025

Alien Abduction of the Month

An Alien Ambassador for August

Lindy Moonhill

Science Fiction · Alien Romance · Adult · Romance

December 2, 2025

Drakarn Mates #7

Daring the Drakarn Warrior Lord

Kate Rudolph

Fantasy · Science Fiction · Alien Romance · Fated Mates · Paranormal Romance

November 26, 2025

Kingdom Come #3

Abomination

Mark Goodwin

Science Fiction · Post-Apocalyptic

December 26, 2025

Ander Rade #2

Ghost Cell

Zac Topping

Science Fiction · Thriller

July 15, 2025

Celestial Matchmaking #1

Matched to the Warlord

Eden Ember

Fantasy · Science Fiction · Alien Romance · Enemies To Lovers · Fated Mates

December 8, 2025

Celestial Matchmaking #2

Matched to the Navigator

Eden Ember

Fantasy · Science Fiction · Alien Romance · Romantasy · Romance

December 12, 2025

Celestial Matchmaking #3

Matched to the Hunter

Eden Ember

Fantasy · Science Fiction · Alien Romance · Fated Mates · Romantasy

December 29, 2025

Celestial Matchmaking #4

Matched to the Diplomat

Eden Ember

Fantasy · Science Fiction · Alien Romance · Forced Proximity · Romantasy

December 12, 2025