Most Popular Hard Science Fiction Books of 2026

Discover popular Hard Science Fiction books published in 2026, with reader ratings and new favorites to explore.

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Books in this list

Undying Mercenaries #25

Hell World

B. V. Larson

Science Fiction · Hard Science Fiction · Space Opera

March 28, 2026

9.2/10 11 awaiting ratings

The Nibelung series #2

Wolfpack Hunt

Taylor M. S. Thomson

Science Fiction · Hard Science Fiction

September 29, 2026

8.5/10 2 awaiting ratings

Rich Man's Sky #4

Thieves' Sky

Wil McCarthy

Science Fiction · Hard Science Fiction

July 7, 2026

8/10 2 awaiting ratings

The Delivery

Gregg Hurwitz

Science Fiction · Hard Science Fiction · Psychological Thriller · Suspense Thriller · Thriller

July 1, 2026

8/10 1 ratings

Undying Mercenaries #26

Spawn World

B. V. Larson

Science Fiction · Hard Science Fiction · Space Opera

September 19, 2026

8/10 1 awaiting ratings

Merchants of Light #1

Faster Than Light

Craig Martelle, Robert G. Williscroft

Science Fiction · Hard Science Fiction

November 8, 2026

The Nibelung series #3

Royal Scout

Taylor M.S. Thomson

Science Fiction · Hard Science Fiction

October 13, 2026

Epic of Atlantis #4

Echoes of the Void

Douglas E. Richards, Brandon Ellis

Science Fiction · Hard Science Fiction

August 18, 2026

Epic of Atlantis #3

Echoes of the Fall

Douglas E. Richards, Brandon Ellis

Science Fiction · Hard Science Fiction

February 13, 2026

The Language of Liars

S. L. Huang

Science Fiction · Hard Science Fiction · Novella

April 21, 2026

Galaxy Raiders #2

Battlestorm

Ian Douglas

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

May 5, 2026

Bionic Frontier #2

The Sands of Mars

Robert E. Hampson

Science Fiction · Hard Science Fiction

September 1, 2026

Relic Wars #1

The Signal Beneath the Sand

Hank Garner

Science Fiction · Hard Science Fiction

April 14, 2026

Ballistic #2

Apogee

Travis S. Taylor

Science Fiction · Hard Science Fiction · Thriller

March 3, 2026

Plausibly Deniable

Jamie Ibson

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

March 3, 2026

Gothic Fantasy

Wars in the Stars Short Stories

Lisa Yaszek

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

October 20, 2026

The Europa Protocol #2

I Thought Charlie Was Gone?

John Bailey

Science Fiction · Hard Science Fiction

January 19, 2026

The Europa Protocol #1

Graveyard Shift on Europa

John Bailey

Science Fiction · Hard Science Fiction

January 12, 2026