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The Object: Hard Science Fiction Best Value Audible 
Flashforward 
Contact: Echoes in the Dark: Hard Science Fiction 
Exodus (The Exodus Trilogy Book 1) Hard-SF.com 
The Frozen Planet: Hard Science Fiction (The Marchenko Logfiles Book 2) 
The Receiver: A Hard Sci-Fi First Contact Techno-Thriller Primordial Press 
Primordial Threat: A Hard Science Fiction Thriller (The Exodus Series Book 1) Hard-SF.com The Enceladus Mission: Hard Science Fiction (Ice Moon Book 1) The Europa Sequence: A Hard Science Fiction Short Story of First Contact and Survival The Shackleton Signal: Hard SF Thriller Hard-SF.com The Torn Planet: Hard Science Fiction (The Marchenko Logfiles Book 1) Hard-SF.com The Atacama Incident: Hard Science Fiction Futureword Publishing Blue SunRise: A Riveting Character-driven Hard Sci-fi Adventure (Blue Sun Space Opera Book 1) Hard-SF.com The Triton Disaster: Hard Science Fiction (Solar System Series Book 4) Uphill Downhill Press, LLC Wine Dark Deep: A Hard Science Fiction Space Opera - Book One: 1 Exodus Blue: A Posthumanism Hard Science Fiction Novel with AI and Mystery (The Colour of Blood Book 1) Hard-SF.com The Disturbance: Hard Science Fiction The Mars Anomaly: Hard Science Fiction Pygmalion Media Generations: A Science Fiction Mystery Thriller CYI Publishing MY DIGITAL SOUL: A Genre-Bending Hard Science Fiction/Mythological Horror Novel Yesterday's Thief: An Eric Beckman Paranormal Sci-Fi Thriller Quartermaster Press Darwin's Dilemma: A Metaphysical Hard Sci-fi AI Technothriller Stephen Arseneault HADRON Dark Matter: (Book 1) A7L Thrilling Books Limited The Genesis Signal: Science Fiction Thriller Reaper Press Plague Wars: Infection Day: The First Trilogy: Three apocalyptic sci-fi technothriller adventures (Plague Wars Series Bo Exemplar: Hard Science Fiction: The Autonomous Sequence (Book 1) Primordial Press Freedom's Last Gasp: A Hard Science Fiction Thriller (The Exodus Series Book 2) Harmsworth Publishing Ltd. The Visitor: First Contact Hard Science Fiction Hard-SF.com The Hole: Hard Science Fiction (Solar System Series Book 1) BEYOND PROXIMA CHRONICLES BOOK ONE: THE LAST MIGRATION: A Hard Science Fiction Novella Hard-SF.com Andromeda: The Encounter: Hard Science Fiction (The Long Journey Book 1) Endeavour (A Sleeping Gods Novel Book 1) Instrumental: Hard Science Fiction: The Autonomous Sequence (Book 2) Hard-SF.com The Luna Monolith: Hard Science Fiction (The Black Monolith Book 1) Aethon Books The Eighth Continent: A Hard Science Fiction Thriller Science Fiction Books Phantom 500: A Hard Science Fiction Space Opera Epic (The Origin Series Book 1) Hard-SF.com Marchenko's Children: Hard Science Fiction (Proxima Logfiles Book 1) Green Hill Publishing Homo Machina: A Post-Apocalyptic Hard Sci-fi Genetic Engineering Thriller Hard-SF.com Mars Nation 2: Hard Science Fiction (Mars Trilogy) Outer Planet Media Colony One Mars: Fast Paced Scifi Thriller (Colony Mars Series Book 1) Hard-SF.com Marchenko's Children: Hard Science Fiction (Proxima Logfiles Book 1) Hard-SF.com The Disturbance 2: The Answer: Hard Science Fiction A. Nation Books FOUND (Hard Science Fiction with Deep space exploration - Domino Book 4): The Lost Ones Griffyn Ink Resonance: An Action Packed, Hard Science Fiction Thriller (Relentless Suspense) Hard-SF.com Silent Sun: Hard Science Fiction (Solar System Series Book 2) Hard-SF.com Ice Moon (Boxset): Hard Science Fiction Cosmic Entanglement Media The Foundry: A Hard-Science Fiction Space Opera (Book 1) Hard-SF.com The Luna Monolith 2: Hard Science Fiction (The Black Monolith) Hard-SF.com Runaway: Hard Science Fiction (Proxima Logfiles Book 4) Tachyon: The Weapon: Hard Science Fiction Cosmic Entanglement Media The Foundry: A Hard-Science Fiction Space Opera (Book 1) Tachyon: The Weapon: Hard Science Fiction The Wooden Pen Press The Proteus Bridge - A Hard Science Fiction AI Adventure (The Sentience Wars) Hard-SF.com Proxima Rising: Hard Science Fiction (Proxima Trilogy Book 1) Hard-SF.com The Luna Monolith 3: Hard Science Fiction (The Black Monolith) Hard-SF.com The Krill Enigma: Hard Science Fiction Hard-SF.com The Clouds of Venus: Hard Science Fiction (Solar System Series Book 5) Hard-SF.com Mars Nation 1: Hard Science Fiction (Mars Trilogy) Hard-SF.com Proxima Trilogy: Part 1-3: Hard Science Fiction Hard-SF.com Proxima Dreaming: Hard Science Fiction (Proxima Trilogy Book 3) The Wooden Pen Press Lyssa's Dream - A Hard Science Fiction AI Adventure (The Sentience Wars Book 1) Hard-SF.com The Portal 2: Hard Science Fiction (Portal to Xibalbá) Hard-SF.com The Factory of God: Hard Science Fiction (The Dark Cloud Book 1) Hard-SF.com Proxima Dreaming: Hard Science Fiction (Proxima Trilogy Book 3) Hard-SF.com The Portal: Hard Science Fiction (Portal to Xibalbá Book 1) Hard-SF.com The Bastion of God: Hard Science Fiction (The Dark Cloud Book 2) Hard-SF.com The Disturbance 3: The Truth: Hard Science Fiction The Breakthrough Effect: A Science-Fiction Thriller J Triptych Publishing Vortex: A Hard Sci Fi Thriller (Transcendence Book 4) Hard-SF.com The Pluto Debacle: Hard Science Fiction (Solar System Series Book 8) Hard-SF.com The Pluto Debacle: Hard Science Fiction (Solar System Series Book 8) Tachyon 3: The Planet: Hard Science Fiction The Breakthrough Effect: A Science-Fiction Thriller Hard-SF.com Amphitrite: The Black Planet: Hard Science Fiction (Planet Nine Book 1) Hard-SF.com The Io Encounter: Hard Science Fiction (Ice Moon Book 3) Tachyon 2: The Ship: Hard Science Fiction J Triptych Publishing Vortex: A Hard Sci Fi Thriller (Transcendence Book 4) Hard-SF.com The Beacon: Hard Science Fiction (Solar System Series Book 7) Hard-SF.com The Jupiter Catastrophe: Hard Science Fiction (Ice Moon Book 5) The Rift: A Science-Fiction Thriller Neon Mess Press Artificial Selection: A Near-Future Science Fiction Mystery Novel (The ArkTech Series Book 1) Hard-SF.com The Death of the Universe: Hard Science Fiction (Big Rip Book 1) Aethon Books This Alien Earth: The Complete Series: A Dystopian Sci-fi Box Set (This Alien Earth Box Sets Book 1) Hard-SF.com The Dark Spring: Hard Science Fiction (Solar System Series Book 6) The Brightest Stars: A Hard Sci-Fi Spy Thriller Hard-SF.com The Death of the Universe: Ghost Kingdom: Hard Science Fiction (Big Rip Book 2) Hard-SF.com Andromeda: The Arrival: Hard Science Fiction (The Long Journey Book 3) Hard-SF.com The Death of the Universe: Rebirth: Hard Science Fiction (Big Rip Book 3) The Meteor: Science Fiction Thriller Hard-SF.com Andromeda: The Sojourn: Hard Science Fiction (The Long Journey Book 2) Epic Realms Press Stranded (Starship of the Ancients Book 1): A Space Opera Adventure Hard-SF.com Proxima Dying: Hard Science Fiction (Proxima Trilogy Book 2) A Hard Reset (The System Integration Chronicles Book 1) Anthem Press Paragon (Extended 2025 Edition) (Cade Korbin New Editions Book 3) Hard-SF.com The Uranus Fiasco: Hard Science Fiction (Solar System Series Book 9) AudioText The Year's Top Hard Science Fiction Stories 2 Infinivox The Year's Top Hard Science Fiction Stories 7 The Fossil: Science Fiction Thriller (Secrets Of Mars Book 1) The Wooden Pen Press Lyssa's Call - A Hard Science Fiction AI Adventure (The Sentience Wars Book 4) The Wooden Pen Press Lyssa's Run - A Hard Science Fiction AI Adventure (The Sentience Wars Book 2)