Earth's Only Hope
by Joynell Schultz
4.09 · 11 ratings
fiction · futuristic · post-apocalyptic · book · first-contact · dystopia · sci-fi · galactic-empire · colonization · action-adventure · young-adult · aliens · romance · military · paranormal · soldiers · space-opera · invasion · age-gap · apocalyptic
Earth's Only Hope: Similar series
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romance · space · audiobook · paranormal · aliens · fiction · action-adventure · psychics · futuristic · female-author · space-opera · space-travel · epic · sci-fi · young-adult · supernatural · book · invasion · female-mc · family
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Catteni
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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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The Atlantis Grail
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space-travel · sci-fi · futuristic · fiction · aliens · exploration · dystopia · audiobook · book · post-apocalyptic · romance · young-adult · action-adventure · female-mc · galactic-empire · royalty · colonization · space-opera · military · apocalyptic
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In Her Name: Redemption
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4.18 · 73 ratings
invasion · romance · galactic-empire · space · action-adventure · aliens · fiction · space-opera · sci-fi · violent-conflict · military · first-contact · book · dystopia · war · adult · post-apocalyptic · futuristic · warriors · space-travel
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Aldebarian Alliance
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4.37 · 89 ratings
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The Adventures of a Xeno-Archaeologist
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4.33 · 84 ratings
adult · first-contact · military · space-opera · sci-fi · action-adventure · aliens · fiction · futuristic · space · ai · supernatural · exploration · super-powered · cyberpunk · galactic-empire · book · romance · space-fleet · space-travel
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Ascension Wars
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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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Aurora Rising
by G.S. Jennsen
4.13 · 66 ratings
sci-fi · space-travel · space-opera · first-contact · military · fiction · action-adventure · galactic-empire · cyberpunk · colonization · space-fleet · violent-conflict · aliens · exploration · ai · space · romance · book · soldiers · adult
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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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Mail-Order Brides of Crakair
by Ava Ross
4.19 · 82 ratings
action-adventure · humor · romance · book · sci-fi · adult · fiction · aliens · galactic-empire · audiobook · invasion · colonization · violent-conflict · dystopia · steamy · insta-love · first-contact · paranormal · new-adult · soldiers
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Shamans & Shifters Space Opera
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4.33 · 46 ratings
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Valerie’s Elites
by Justin Sloan
4.51 · 31 ratings
action-adventure · soldiers · sci-fi · galactic-empire · space-travel · first-contact · military · audiobook · space-fleet · space · genetic-engineering · violent-conflict · invasion · book · colonization · aliens · exploration · fiction · young-adult · shapeshifters
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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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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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AMP
by Stephen Arseneault
4.04 · 48 ratings
space-travel · galactic-empire · sci-fi · genetic-engineering · space · space-fleet · adult · violent-conflict · military · book · post-apocalyptic · exploration · fiction · colonization · soldiers · first-contact · invasion · futuristic · aliens · space-opera
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The Slave Girl Chronicles
by J.C. Andrijeski
3.82 · 21 ratings
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OMEGA
by Stephen Arseneault
4.08 · 36 ratings
galactic-empire · sci-fi · genetic-engineering · space · space-fleet · adult · violent-conflict · military · book · post-apocalyptic · aliens · fiction · space-travel · soldiers · first-contact · invasion · futuristic · exploration · colonization · space-opera
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Unexpected
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4.06 · 18 ratings
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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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Dead Enders
by Mike Resnick
3.09 · 11 ratings
space-opera · soldiers · sci-fi · violent-conflict · space-fleet · military · first-contact · espionage · action-adventure · aliens · exploration · fiction · galactic-empire · political-intrigue · space · book · space-travel · lgbtq · quest · genetic-engineering
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Earth's Only Hope
by Joynell Schultz
4.09 · 11 ratings
fiction · futuristic · post-apocalyptic · book · first-contact · dystopia · sci-fi · galactic-empire · colonization · action-adventure · young-adult · aliens · romance · military · paranormal · soldiers · space-opera · invasion · age-gap · apocalyptic
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Alien Fated Mates for Ajnara Warriors
by Pearl Tate
4.40 · 20 ratings
paranormal · romance · adult · aliens · fiction · humor · post-apocalyptic · military · sci-fi · fated-mates · zombies · book · violent-conflict · first-contact · action-adventure · kind-mc · invasion · space-opera · soldiers · poc-mc
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Blue Planet Warriors
by Maia Starr
3.93 · 14 ratings
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Outer Settlement Agency
by Lyn Brittan
3.67 · 9 ratings
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