Free Science Fiction Books

31 free science fiction books on Kindle right now. Updated daily.

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31 books

Hell's Rejects, Books 1-4 Box Set (M.R. Forbes Box Sets)
Hell's Rejects, Books 1-4 Box Set (M.R. Forbes Box Sets)

by M.R. Forbes

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4.6 (2,882)
Rust-Colored Rain: A Zombie Apocalypse Thriller (Wrack and Ruin Book 1)
Rust-Colored Rain: A Zombie Apocalypse Thriller (Wrack and Ruin Book 1)

by Otto Schafer

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4.5 (1,960)
Venom Spear: Blades of Grass Book 1
Venom Spear: Blades of Grass Book 1

by Austin Chambers

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4.5 (723)
Lost Souls: Sci-Fi Adventure with a sense of humor! (Get Lost Saga Book 1)
Lost Souls: Sci-Fi Adventure with a sense of humor! (Get Lost Saga Book 1)

by Noah Chinn

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4.5 (399)
The Forever Life (The Forever Series Book 1)
The Forever Life (The Forever Series Book 1)

by Craig Robertson

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4.4 (1,492)
Prepper: Book 1 (PREPPER: A GRID-DOWN POST-APOCALYPTIC/DYSTOPIAN SURVIVAL SERIES)
Prepper: Book 1 (PREPPER: A GRID-DOWN POST-APOCALYPTIC/DYSTOPIAN SURVIVAL SERIES)

by Tom Abrahams

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4.4 (1,333)
The Vacuum of Space: A Funny Sci Fi Mystery (Space Janitor Book 1)
The Vacuum of Space: A Funny Sci Fi Mystery (Space Janitor Book 1)

by Julia Huni

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4.4 (1,138)
The Growing Dark - End of Seasons 1: (A Post-Apoc/Disaster Thriller)
The Growing Dark - End of Seasons 1: (A Post-Apoc/Disaster Thriller)

by Mike Kraus

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4.4 (1,094)
Victory's Wake (Deception Fleet Book 1)
Victory's Wake (Deception Fleet Book 1)

by Daniel Gibbs

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4.4 (877)
Shadows of Empire: An Epic Space Opera (Cadicle Book 1)
Shadows of Empire: An Epic Space Opera (Cadicle Book 1)

by A.K. DuBoff

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4.4 (618)
Species Traitor: A Science Fiction Dystopian Novel
Species Traitor: A Science Fiction Dystopian Novel

by Kate L. Mary

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4.4 (293)
The Last Outpost (Frozen World Book 1)
The Last Outpost (Frozen World Book 1)

by Hannah Ross

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4.4 (237)
No Good Deed: A Psychological Thriller (The Mark Taylor Series Book 1)
No Good Deed: A Psychological Thriller (The Mark Taylor Series Book 1)

by M.P. McDonald

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4.3 (10,482)
Melody: A First Contact Techno-Thriller (The Unbound Duology Book 1)
Melody: A First Contact Techno-Thriller (The Unbound Duology Book 1)

by David Hoffer

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4.3 (1,791)
Stranded No Where: A Post-Apocalyptic Dystopian Thriller (The No Where Apocalypse Book 1)
Stranded No Where: A Post-Apocalyptic Dystopian Thriller (The No Where Apocalypse Book 1)

by e a lake

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4.3 (1,190)
The Emissary: A Military Sci-Fi Series (Omega Taskforce Book 1)
The Emissary: A Military Sci-Fi Series (Omega Taskforce Book 1)

by G J Ogden

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4.3 (431)
Devil to Pay: A naval military science fiction series (The Devil and the Dark Book 1)
Devil to Pay: A naval military science fiction series (The Devil and the Dark Book 1)

by R.M. Olson

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4.3 (250)
Forfeiture
Forfeiture

by JP Nebra

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4.7 (26)
The Seneca Scourge: A Medical Thriller
The Seneca Scourge: A Medical Thriller

by Carrie Rubin

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4.4 (63)
I, Starship: A Space Opera
I, Starship: A Space Opera

by Scott Bartlett

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4.2 (4,075)
Then the Night Got Weird: A Surreal Time-Bending Adventure
Then the Night Got Weird: A Surreal Time-Bending Adventure

by Greg Neeley

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4.5 (28)
Komodo
Komodo

by Cairo Smith

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4.8 (14)
Wish Book
Wish Book

by Laurel Veil

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4.2 (251)
Terradox: Fifth Anniversary Edition
Terradox: Fifth Anniversary Edition

by Craig A. Falconer

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4.1 (2,663)
The Disturbance: Hard Science Fiction Paperback – April 20, 2022
The Disturbance: Hard Science Fiction Paperback – April 20, 2022

by Brandon Q. Morris

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4.1 (1,700)
The Crucifier (The Adler Legacy Series Book 1)
The Crucifier (The Adler Legacy Series Book 1)

by Julia Derek

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4.5 (11)
Exodus (Mark of the Beast Book 1)
Exodus (Mark of the Beast Book 1)

by M. R. Parsons

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4.2 (19)
Dust to Dust: Deconstruction Book One (A Post-Apocalyptic Thriller)
Dust to Dust: Deconstruction Book One (A Post-Apocalyptic Thriller)

by Rashad Freeman

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4.0 (1,269)
The Twin Paradox
The Twin Paradox

by Charles Wachter

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4.0 (1,276)
Tales of Space and Time
Tales of Space and Time

by H. G. (Herbert George) Wells

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4.0 (285)
Hidden Gem
Void Contract (Gigaparsec Book 1)
Void Contract (Gigaparsec Book 1)

by Scott Rhine

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3.9 (50)
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