Most Popular Science Fiction Books of the 2020s

Vaxxlian Alien Mail Order Brides #6

Myadd

Sue Mercury

Science Fiction · Alien Romance · Romance

November 5, 2020

Shatter Me: The New Republic #2

Release Me

Tahereh Mafi

Science Fiction · Dystopia · Young Adult · Romance

April 7, 2026

Exiles War #1

Fleet of the Forgotten

Dan Thornton

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

November 6, 2025

Codex Ananta #1

Eternal

Soham Kale

Science Fiction · Hard Science Fiction

August 29, 2025

The Vrix #2

The Delver

Tiffany Roberts

Science Fiction · Alien Romance · Romance

October 7, 2025

The Fourth Consort

Edward Ashton

Fantasy · Science Fiction

February 25, 2025

Starship of the Ancients #2

Lost Planet

A.K. DuBoff

Science Fiction · Space Opera

June 27, 2025

Battles of the Republic #1

The Intus Invasion

James Rosone, Brandon Ellis

Science Fiction · Space Opera

May 15, 2025

Alien Wolf Tales #1

Big, Bad Alien

Honey Phillips

Science Fiction · Alien Romance · Fairy Tale Retellings · Fated Mates · Adult

January 23, 2025

Alpha Blood - The Battle for Sanguis #1

Facing Recognition

C.M. James

Horror · Science Fiction · Alternate History · Mystery · Thriller

February 14, 2024

Mutant Mates #1

Mutant Mine

Venus Nox

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

October 14, 2024

Sublunary Devices #1

The Clockwork Pen

Jennifer Haskin

Fantasy · Science Fiction · Steampunk · Romance

August 2, 2024

Michael Vey #10

The Colony

Richard Paul Evans

Science Fiction · Young Adult

November 26, 2024

Mad Sisters of Esi

Tashan Mehta

Fantasy · Science Fiction

2023

The Frozen Planet Saga #1

Horizon

David W. Adams

Horror · Science Fiction

December 18, 2023

Backyard Starship #17

Ghost in the Deep

J.N. Chaney, Terry Maggert

Science Fiction · Space Opera

October 29, 2023

Delta-V #2

Critical Mass

Daniel Suarez

Science Fiction · Thriller

January 31, 2023

The Firebird Chronicles #4

Facets of Revolution

T.A. White

Fantasy · Science Fiction · Romance

September 27, 2022

Expeditionary Force #14

Match Game

Craig Alanson

Science Fiction

June 7, 2022

Expeditionary Force #15

Failure Mode

Craig Alanson

Science Fiction

December 6, 2022

36 Streets

T. R. Napper

Science Fiction

February 8, 2022

Expeditionary Force #13

Fallout

Craig Alanson

Science Fiction

December 5, 2021

Expeditionary Force #12

Breakaway

Craig Alanson

Science Fiction

June 1, 2021

Joseph Bridgeman #2

The Shadows of London

Nick Jones

Science Fiction · Mystery

June 1, 2021

Joseph Bridgeman #1

And Then She Vanished

Nick Jones

Science Fiction · Mystery

February 2, 2021

The Protectorate #3

Catalyst Gate

Megan E. O’Keefe

Science Fiction · Space Opera

June 22, 2021

The Expanse #9

Leviathan Falls

James S. A. Corey

Science Fiction · Space Opera

November 30, 2021

Treasured by the Alien #4

A Family for the Alien Warrior

Honey Phillips

Science Fiction · Romance

November 22, 2020

Treasured by the Alien #3

Daughter of the Alien Warrior

Honey Phillips

Science Fiction · Romance

June 21, 2020

The Firebird Chronicles #3

Threshold of Annihilation

T.A. White

Fantasy · Science Fiction · Romance

December 15, 2020

The Firebird Chronicles #2

Age of Deception

T.A. White

Fantasy · Science Fiction · Romance

February 5, 2020

Expeditionary Force #11

Brushfire

Craig Alanson

Science Fiction

December 15, 2020

Expeditionary Force #10

Critical Mass

Craig Alanson

Science Fiction

August 4, 2020

Sherlock Holmes (James Lovegrove)

Sherlock Holmes and the Beast of the Stapletons

James Lovegrove

Fantasy · Horror · Science Fiction · Crime Fiction · Sherlock Holmes

October 13, 2020

Red Rising Saga #7

Red God

Pierce Brown

Science Fiction · Dystopia

2027

Vaxxlian Alien Mail Order Brides #11

Draevan

Sue Mercury

Science Fiction · Alien Romance · HEA Ending · Adult · Romance

September 17, 2026