Most Popular Science Fiction Books of 2026

Tower of Somnus #6

Ascendant

Cale Plamann

Science Fiction · Cyberpunk · LitRPG

September 9, 2026

In Death #62

Stolen in Death

J. D. Robb

Science Fiction · Romance · Thriller

February 3, 2026

Ascending Carbon Series #2

Second Ascent

Douglas Phillips

Science Fiction

April 17, 2026

Mutant Mates #2

Subject Thirteen

Venus Nox

Science Fiction · Alien Romance · Slow Burn Romance · Adult · Romance

2026

Time's Shadow #2

Dark Agent

Neal Asher

Science Fiction

May 14, 2026

Martin Hench #4

Martin Hench Book 4

Cory Doctorow

Science Fiction · Mystery

2026

Hunter Squad #3

Marc

Anna Hackett

Science Fiction · Dystopia · Romance

March 24, 2026

Dorothy Gentleman #2

Nobody's Baby

Olivia Waite

Science Fiction · Mystery

March 10, 2026

Starship's Mage #18

Shadow of Mars

Glynn Stewart

Science Fiction · Space Opera

January 22, 2026

Splinter Effect #2

Double Shadow

Andrew Ludington

Science Fiction · Adventure · Thriller

April 21, 2026

The Galaxy's Worst Mercenaries #2

The Calypso Enigma

Skyler Ramirez

Science Fiction

April 28, 2026

Dogs of War #4

Dogs of War Book 4

Adrian Tchaikovsky

Science Fiction

2026

Starship Omega #3

Infinite Warship

Scott Bartlett, Joshua James

Science Fiction · Military Science Fiction · Space Opera

April 15, 2026

Prototype #2

Prototype 2

Jez Cajiao

Fantasy · Science Fiction · Dark Fantasy · LitRPG

2026

TransDimensional Hunter #4

Beyond the Rift

John Ringo

Fantasy · Science Fiction · Urban Fantasy · Young Adult

February 3, 2026

Laundry Files #14

The Regicide Report

Charles Stross

Horror · Science Fiction

January 27, 2026

Poor Man's Fight #7

Life After Hell

Elliott Kay

Science Fiction · Space Opera

June 21, 2026

The Wardens #2

The Wardens Book 2

Steve J. McHugh

Science Fiction · Space Opera

2026

Astra Black #3

A City Dreaming

Maurice Broaddus

Science Fiction · Space Opera

June 30, 2026

The Dreambird Chronicles #3

The Bird Tribe

Lucinda Roy

Science Fiction · Dystopia

July 7, 2026

A Liaden Universe Constellation #6

A Liaden Universe Constellation Volume VI

Steve Miller, Sharon Lee

Science Fiction · Space Opera · Short Stories

May 5, 2026

On the Calculation of Volume #4

On the Calculation of Volume 4

Solvej Balle

Science Fiction · Translation

April 9, 2026

Portal

Brian Andrews

Science Fiction · Thriller

July 18, 2026

On the Calculation of Volume #5

On the Calculation of Volume 5

Solvej Balle

Science Fiction · Translation

November 17, 2026

Rogue Team International #5

Red Empire

Jonathan Maberry

Horror · Science Fiction

March 10, 2026

Terrible Worlds: Transformations #2

Preaching to the Choir

Adrian Tchaikovsky

Horror · Science Fiction · Novella

August 11, 2026

The Cosmic Dryad Series #1

Botanical Mischief

T.A. White

Fantasy · Science Fiction · Space Opera

July 15, 2026

The Traveler

Joseph Eckert

Fantasy · Science Fiction · Dystopia · Adult

June 9, 2026

Rome's Revolution Universe

Rei's Road to the Stars: The Birth of Rome's Revolution

Michael Brachman, Stephen Fisch

Science Fiction

January 2026

Blue Star Enterprises #3

Forged Unity

M.J. Markgraf

Science Fiction · Space Opera · Self-published

March 24, 2026

Detour #1

Detour

Jeff Rake, Rob Heart

Science Fiction · Mystery · Thriller

January 13, 2026

The Nexus Twins Trilogy #1

Psionic Heart

Ash Leo Reed

Science Fiction · Slow Burn Romance · Romance

June 17, 2026

Terrible Worlds: Destinations

Terrible Worlds: Destinations

Adrian Tchaikovsky

Science Fiction · Collection

May 5, 2026

Riverworld

Riverworld Odyssey

Philip José Farmer

Science Fiction · Anthology · Short Stories · Non-fiction

July 30, 2026

Remotes

Jeffrey Wilson, Brian Andrews

Science Fiction · War & Military · Short Stories · Thriller

December 15, 2026

Snapback

Jeffrey Wilson, Brian Andrews

Science Fiction · Short Stories · Thriller

September 15, 2026