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  1. *** Science Fiction
  2. **The Book of Jared (Escaping Sanctuary Book 1) by Cher Jones. Price: Free. Genre: Science Fiction, Time Travel. Rated: 4.5 stars on 81 Reviews. 466 pages. ASIN: B08VHKCZBB.
  3. ***Starbreaker – Volume 1 (Deal, Not Free) by Luke Chmilenko. Price: $4.99. Genre: Space Opera Science Fiction Deal, Sponsor, The doors to the cosmos come crashing open. Rated: 4.6 stars on 999 Reviews. 445 pages. ASIN: B0DW7CGM5X. Also get the eBook version here or here, and the audiobook here or here, please.
  4. ***Time for PsyQ (Quantum Talents Series Book 1) (Deal, Not Free) by Marti Ward. Price: $2.99. Genre: Science Fiction & Mystery Deal, Sponsor, An engaging and imaginative sci-fi adventure that skillfully blends mystery, magic, and a touch of quantum science. Rated: 4.6 stars on 102 Reviews. 190 pages. ASIN: B0C2M4LL72. Also, get the eBook version here, and the paperback version here, or here, please.
  5. ***The Gray Emperor (The Crimson Deathbringer Book 6) (Repeat) by Sean Robins. Price: Free. Genre: Science Fiction, Military, Space Fleet. Rated: 4.6 stars on 135 Reviews. 371 pages. ASIN: B0BSL6YYDH.

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  1. *** Science Fiction
  2. **Breaking Orbit – Titan Run Trilogy Volume 1 by Robert Murray. Price: Free. Genre: Science Fiction, Military, Space Fleet. Rated: 4.0 stars on 50 Reviews. 282 pages. ASIN: B01M8LQ41J.
  3. *Zero Sum Galaxy (The Logic of Games Book 1) by Thomas Brookside. Price: Free. Genre: Science Fiction, Space Opera. Rated: 4.4 stars on 6 Reviews. 263 pages. ASIN: B0GX2VPQGD.
  4. ***The Aurora City (Cassiopia series Book 4) (Repeat) by E Mason. Price: Free. Genre: Science Fiction, Time Travel. Rated: 4.6 stars on 197 Reviews. 266 pages. ASIN: B06XD7WC4J.

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4 Mind-Blowing Free Kindle Science Fiction Books, Deals

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Free Kindle Books – Science Fiction

      1. Free Kindle Science Fiction Blog.
  1. *** Science Fiction
  2. *Gambit of Our Forefathers (The Infinite Cyclical Universe Book 1) by Ryan Pearcy. Price: Free. Genre: Hard Science Fiction, Adventure. Rated: 4.8 stars on 6 Reviews. 338 pages. ASIN: B0G2HKR2BW.
  3. ***Time for PsyQ (Quantum Talents Series Book 1) (Deal, Not Free) by Marti Ward. Price: $2.99. Genre: Science Fiction Action & Adventure Deal, Sponsor, A middle grade adventure set in Appearance of Magic universe. Rated: 4.6 stars on 102 Reviews. 190 pages. ASIN: B0C2M4LL72. Also, get the eBook version here, and the paperback version here, or here, please.
  4. ***The Inner Circle (Comet Clement Book 1) (Repeat) by Kevin George. Price: Free. Genre: Science Fiction, Adventure. Rated: 4.1 stars on 999 Reviews. 302 pages. ASIN: B004UHLJFO.
  5. *Infinite Graves (Deal, Not Free) by J. Morris. Price: $0.99. Genre: Science Fiction Deal, Sponsor, Mack swallowed a bottle of pills, she meant to die instead she woke up in a life she does not recognize. Rated: 4.8 stars on 11 Reviews. 419 pages. ASIN: B0GX32KZW4. Also, get the eBook version here, or here, please.

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      1. Free Kindle Science Fiction Blog.
  1. *** Science Fiction
  2. *Hallowed Panopticon – Catblade Book 2 by R Echevarria. Price: Free. Genre: Science Fiction, Cyberpunk, Action & Adventure. Rated: 4.6 stars on 8 Reviews. 193 pages. ASIN: B0CZVNCDNV.
  3. ***Scythian Dawn Book 1 (Repeat) by P Lentz. Price: Free. Genre: Science Fiction, Military, Action & Adventure, Space Fleet. Rated: 4.4 stars on 617 Reviews. 379 pages. ASIN: B07KFKMSBY.

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      1. Free Kindle Science Fiction Blog.
      1. *** Science Fiction
      2. *Acting Human (Interstellar Refugees Book 2) by Daniel Ellrick. Price: Free. Genre: Hard Science Fiction, Space Opera. Rated: 4.7 stars on 30 Reviews. 279 pages. ASIN: B0FKY1R8RJ.
      3. ***Time for PsyQ (Quantum Talents Series Book 1) (Deal, Not Free) by Marti Ward. Price: $2.99. Genre: Science Fiction & Mystery Deal, Sponsor, Airlie ends up in a desperate race to rescue one of her new friends. Rated: 4.6 stars on 102 Reviews. 190 pages. ASIN: B0C2M4LL72. Also, get the eBook version here, and the paperback version here, or here, please.
      4. **The League of Elder – Sygillis of Metatron by Ren Garcia. Price: Free. Genre: Science Fiction, Military, Space Fleet. Rated: 4.2 stars on 97 Reviews. 413 pages. ASIN: B075W65Q4P.
      5. ***Saving Paludis (Repeat) by Clayton Graham. Price: Free. Genre: Science Fiction, Colonization, Adventure. Rated: 4.3 stars on 105 Reviews. 369 pages. ASIN: B07CZBTKZX.

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      1. Free Kindle Science Fiction Blog.
      1. *** Science Fiction
      2. **Dialing Earth (Interstellar Refugees Book 1) by Daniel Ellrick. Price: Free. Genre: Hard Science Fiction, Adventure. Rated: 4.5 stars on 63 Reviews. 325 pages. ASIN: B0FKXSR698.
      3. ***Callisto 2.0 (Shambhala Saga Book 1) (Repeat) by Susan English. Price: Free. Genre: Science Fiction, Colonization. Rated: 4.3 stars on 161 Reviews. 403 pages. ASIN: B08MWN8YVG.

Free Science Fiction for May 21st, 2026

  1. *** Science Fiction
  2. *Blacktree Station by Tyson Koss. Price: Free. Genre: Science Fiction, Galactic Empire, Space Opera, Action & Adventure. Rated: 4.5 stars on 23 Reviews. 296 pages. ASIN: B0DQJ2QV2D.
  3. *Zero Sum Galaxy (The Logic of Games Book 1) by Thomas Brookside. Price: Free. Genre: Science Fiction, Space Opera. Rated: 5.0 stars on 4 Reviews. 263 pages. ASIN: B0GX2VPQGD.
  4. ***The Aurora City (Cassiopia series Book 4) (Repeat) by E Mason. Price: Free. Genre: Science Fiction, Time Travel, Adventure. Rated: 4.6 stars on 197 Reviews. 266 pages. ASIN: B06XD7WC4J.