Youngblood
by H. Peter Alesso
3.33 · 3 ratings
space · action-adventure · adult · dystopia · colonization · exploration · fiction · first-contact · book · space-travel · time-travel · sci-fi
Youngblood: Similar series
Salvation Sequence
by Peter F. Hamilton
4.27 · 97 ratings
mystery · action-adventure · sci-fi · space-opera · space-travel · first-contact · audiobook · adult · space · hard-sci-fi · book · colonization · fiction · aliens · exploration · dystopia · futuristic · epic · transhumanism · 21st-century
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Catteni
by Anne McCaffrey
3.96 · 124 ratings
adult · invasion · romance · violent-conflict · female-author · first-contact · space-opera · space-travel · sci-fi · aliens · fiction · action-adventure · futuristic · dystopia · space · audiobook · colonization · other-world · female-mc · survival
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Marsbound
by Joe Haldeman
3.50 · 64 ratings
violent-conflict · first-contact · sci-fi · action-adventure · aliens · fiction · space · dystopia · audiobook · book · invasion · post-apocalyptic · adult · space-travel · space-opera · exploration · hard-sci-fi · time-travel · historical · military
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Phule's Company
by Robert Lynn Asprin
3.84 · 124 ratings
comedy · space-travel · space-opera · soldiers · sci-fi · violent-conflict · military · war · humor · fiction · exploration · space · audiobook · book · adult · space-fleet · first-contact · aliens · invasion · colonization
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Linesman
by S.K. Dunstall
4.13 · 60 ratings
aliens · fiction · action-adventure · friendship · war · adult · space-fleet · violent-conflict · female-author · first-contact · military · space-opera · sci-fi · book · invasion · space · audiobook · exploration · futuristic · space-travel
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Aldebarian Alliance
by Dianne Duvall
4.37 · 89 ratings
romance · book · vampires · paranormal · audiobook · alpha-mc · female-mc · action-adventure · aliens · fiction · sci-fi · adult · space · humor · military · first-contact · steamy · urban-fantasy · suspense · contemporary
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Theirs Not to Reason Why
by Jean Johnson
4.07 · 88 ratings
invasion · time-travel · book · paranormal · space · futuristic · war · female-mc · aliens · action-adventure · fiction · soldiers · sci-fi · space-travel · space-opera · first-contact · military · magic · adult · violent-conflict
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Orbs
by Nicholas Sansbury Smith
3.94 · 94 ratings
invasion · post-apocalyptic · dystopia · audiobook · fiction · aliens · apocalyptic · violent-conflict · adult · sci-fi · book · survival · action-adventure · first-contact · horror · colonization · space · suspense · exploration · military
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Legacy Ship Trilogy
by Nick Webb
4.23 · 44 ratings
book · first-contact · technothriller · invasion · action-adventure · aliens · exploration · fiction · colonization · supernatural · space-travel · space-opera · galactic-empire · soldiers · sci-fi · violent-conflict · space · space-fleet · adult · audiobook
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The A.I.
by Vaughn Heppner
4.33 · 117 ratings
military · first-contact · violent-conflict · space · space-fleet · adult · soldiers · sci-fi · ai · space-opera · galactic-empire · space-travel · colonization · action-adventure · aliens · exploration · fiction · invasion · book · dystopia
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Ascension Wars
by Jasper T. Scott
3.86 · 58 ratings
industrial-era · genetic-engineering · space · galactic-empire · colonization · supernatural · invasion · post-apocalyptic · book · military · first-contact · violent-conflict · historical · adult · space-fleet · soldiers · sci-fi · space-travel · exploration · fiction
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Indian Hill
by Mark Tufo
4.49 · 102 ratings
sci-fi · first-contact · adult · violent-conflict · aliens · fiction · post-apocalyptic · invasion · book · soldiers · military · space-travel · space-fleet · exploration · action-adventure · zombies · audiobook · space · colonization · space-opera
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Portal Wars
by Jay Allan
3.99 · 38 ratings
soldiers · exploration · fiction · action-adventure · aliens · sci-fi · colonization · war · book · invasion · space-fleet · adult · dystopia · space · violent-conflict · first-contact · audiobook · military · galactic-empire · space-travel
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The Siege of Terra
by Dan Abnett
4.18 · 116 ratings
action-adventure · exploration · fiction · violent-conflict · adult · military · sci-fi · space · audiobook · grim-dark · space-fleet · space-opera · soldiers · book · genetic-engineering · aliens · first-contact · colonization · invasion · galactic-empire
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Shamans & Shifters Space Opera
by Jenny Schwartz
4.33 · 46 ratings
romance · shapeshifters · book · paranormal · space · aliens · fiction · action-adventure · sci-fi · space-travel · space-opera · first-contact · adult · futuristic · outlaws · space-fleet · magic · fae · colonization · galactic-empire
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Freedom's Fire
by Bobby Adair
4.10 · 52 ratings
adult · invasion · book · colonization · aliens · exploration · fiction · epic · soldiers · space-travel · space-opera · galactic-empire · sci-fi · audiobook · military · first-contact · violent-conflict · space · space-fleet · dystopia
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Warriors of Karal
by Harmony Raines
4.18 · 38 ratings
violent-conflict · adult · contemporary · first-contact · space-travel · galactic-empire · sci-fi · paranormal · action-adventure · aliens · exploration · colonization · fiction · book · steamy · invasion · romance · genetic-engineering · dystopia · warriors
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Eternal Frontier
by Anthony J. Melchiorri
4.18 · 33 ratings
soldiers · fiction · action-adventure · exploration · sci-fi · book · adult · genetic-engineering · space · violent-conflict · first-contact · audiobook · military · space-travel · space-opera · aliens · war · colonization · mystery · invasion
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Asterion Noir
by G.S. Jennsen
4.39 · 18 ratings
cyberpunk · genetic-engineering · space · audiobook · galactic-empire · politics · suspense · colonization · book · technothriller · invasion · romance · space-fleet · adult · violent-conflict · first-contact · horror · military · space-travel · space-opera
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Pennsylvania
by Michael Bunker
3.69 · 36 ratings
action-adventure · fiction · apocalyptic · book · post-apocalyptic · space · adult · dystopia · space-travel · sci-fi · exploration · colonization · supernatural · time-travel · violent-conflict · cyberpunk · military · galactic-empire · soldiers · spirituality
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Star One
by Raymond L. Weil
4.14 · 22 ratings
adult · sci-fi · space-opera · exploration · fiction · space · space-travel · colonization · action-adventure · book · military · space-fleet · violent-conflict · dystopia · survival · post-apocalyptic · anthologies
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SODIUM
by Stephen Arseneault
3.90 · 21 ratings
book · adult · sci-fi · fiction · genetic-engineering · space · galactic-empire · invasion · post-apocalyptic · military · first-contact · violent-conflict · space-fleet · aliens · colonization · soldiers · space-travel · exploration · space-opera · action-adventure
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Deserto rosso
by Rita Carla Francesca Monticelli
4.20 · 10 ratings
space-travel · colonization · exploration · fiction · hard-sci-fi · book · first-contact · technothriller · adult · space · sci-fi · action-adventure · mars · aliens · mystery · invasion · female-author · contemporary · violent-conflict · suspense
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The Black Library Novella Series 3
by David Guymer
3.75 · 4 ratings
book · supernatural · fiction · adult · genetic-engineering · dystopia · invasion · military · space · space-fleet · violent-conflict · colonization · aliens · exploration · soldiers · galactic-empire · sci-fi · space-travel · first-contact · europe
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