Free Hard Sci-Fi Audiobooks Download

Unabridged audiobook download for free in following below:

Greybeard - Brian W. Aldiss

Category: (Post)apocalyptic  Adults  Sci-Fi 
Language: EnglishKeywords: Adventure  Hard Sci-Fi 

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Brian W. Aldiss Greybeard

Posted: 3 Feb 2026
Format: M4B / Bitrate: ?
File Size: 222.99 MBs

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Sunward - William Alexander

Category: Novel  Sci-Fi 
Language: EnglishKeywords: Alexander  Hard Sci-Fi  Science Fiction  Sunward  William Alexander 

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William Alexander Sunward

Posted: 11 Oct 2025
Format: M4B / Bitrate: 64 Kbps
File Size: 159.85 MBs

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The Rift 03 (Trilogy) - Douglas E. Richards, Joshua T. Calvert

Category: Adults  Sci-Fi  Thriller 
Language: EnglishKeywords: First Contact  Hard Sci-Fi  Hard Science Fiction  Mystery  Suspense  Technothriller  Thriller 

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Douglas E. Richards, Joshua T. Calvert The Rift 03 (Trilogy)

Posted: 9 Oct 2025
Format: M4B / Bitrate: Variable
File Size: 371.46 MBs

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Heorot Series [1-4] Legacy of Heorot, Secret of Black Ship Island, Beowulf’s Children, Starborn and Godsons - Larry Niven, Jerry Pournelle, Steven Barnes

Category: Action  Adults  Sci-Fi 
Language: EnglishKeywords: Epic  First Contact  Hard Sci-Fi  Science Fiction 

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Larry Niven, Jerry Pournelle, Steven Barnes Heorot Series [1-4] Legacy of Heorot, Secret of Black Ship Island, Beowulf's Children, Starborn and Godsons

Posted: 7 Aug 2025
Format: M4B / Bitrate: Mixed
File Size: 1.56 GBs

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The Rift - Book 1 - Douglas E. Richards, Joshua T. Calvert

Category: Adults  Sci-Fi  Thriller 
Language: EnglishKeywords: First Contact  Hard Sci-Fi  Hard Science Fiction  Mystery  Technothriller  Thriller & Suspense 

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Douglas E. Richards, Joshua T. Calvert The Rift - Book 1

Posted: 17 Jul 2025
Format: M4B / Bitrate: Variable
File Size: 396.56 MBs

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Neptune (The Grand Tour #25) - Ben Bova

Category: Sci-Fi 
Language: EnglishKeywords: Hard Sci-Fi  Outer Planets  Space Opera  True Decrypt 

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Ben Bova Neptune (The Grand Tour #25)

Posted: 16 Dec 2024
Format: M4B / Bitrate: 128 Kbps
File Size: 465.18 MBs

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Uranus (The Grand Tour #24) - Ben Bova

Category: Sci-Fi 
Language: EnglishKeywords: Hard Sci-Fi  Outer Planets  Space Opera  True Decrypt 

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Ben Bova Uranus (The Grand Tour #24)

Posted: 16 Dec 2024
Format: M4B / Bitrate: 128 Kbps
File Size: 482.16 MBs

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Earth (The Grand Tour #23) - Ben Bova

Category: Sci-Fi 
Language: EnglishKeywords: Hard Sci-Fi  Space Opera  Space Quest  True Decrypt 

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Ben Bova Earth (The Grand Tour #23)

Posted: 16 Dec 2024
Format: M4B / Bitrate: 128 Kbps
File Size: 420.74 MBs

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The Yesterday’s Kin Trilogy - Nancy Kress

Category: Sci-Fi 
Language: EnglishKeywords: Books 1-3  First Contact  Hard Sci-Fi  True Decrypt 

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Nancy Kress The Yesterday's Kin Trilogy

Posted: 21 Jun 2024
Format: M4B / Bitrate: 64 Kbps
File Size: 895.74 MBs

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