A Space Adventure
by Ell Leigh Clarke
5.00 · 1 ratings
book · first-contact · colonization · adult · dystopia · fiction · humor · galactic-empire · space-opera
A Space Adventure: Similar series
Old Man's War
by John Scalzi
4.02 · 552 ratings
sci-fi · space-opera · fiction · space · audiobook · book · military · violent-conflict · adult · aliens · war · colonization · space-travel · action-adventure · humor · soldiers · exploration · genetic-engineering · galactic-empire · politics
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The Legend of ZERO
by Sara King
4.33 · 138 ratings
book · aliens · fiction · action-adventure · space-opera · sci-fi · post-apocalyptic · space · violent-conflict · first-contact · invasion · dystopia · war · futuristic · military · galactic-empire · adult · journey · horror · humor
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The Human Division
by John Scalzi
4.07 · 243 ratings
adult · violent-conflict · military · space-opera · space-travel · sci-fi · fiction · aliens · space · soldiers · humor · action-adventure · exploration · war · genetic-engineering · audiobook · galactic-empire · colonization · book · first-contact
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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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Alien Invasion
by Sean Platt
3.83 · 96 ratings
adult · violent-conflict · first-contact · horror · sci-fi · aliens · action-adventure · fiction · apocalyptic · dystopia · audiobook · colonization · book · post-apocalyptic · invasion · comedy · humor · space-fleet · military · space
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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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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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The Siege of Terra
by Dan Abnett
4.18 · 116 ratings
adult · violent-conflict · military · sci-fi · exploration · action-adventure · fiction · space · audiobook · space-fleet · space-opera · soldiers · grim-dark · genetic-engineering · book · first-contact · aliens · galactic-empire · colonization · invasion
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Children of a Dead Earth
by Patrick S. Tomlinson
3.86 · 28 ratings
colonization · invasion · book · audiobook · space · dystopia · action-adventure · mystery · aliens · fiction · crime · violent-conflict · adult · sci-fi · space-opera · dying-earth · police-procedural · conspiracies · political-intrigue · humor
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Stratification
by Julie E. Czerneda
4.11 · 28 ratings
space · psychics · aliens · fiction · sci-fi · space-opera · female-author · adult · book · urban-fantasy · colonization · epic · galactic-empire · dystopia · cyberpunk · anthologies · hard-sci-fi · invasion · industrial-era · post-apocalyptic
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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
colonization · exploration · fiction · invasion · aliens · book · audiobook · military · first-contact · violent-conflict · space · space-fleet · adult · soldiers · epic · sci-fi · space-travel · space-opera · galactic-empire · action-adventure
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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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Gateway to the Galaxy
by Jonathan Yanez
4.23 · 36 ratings
fiction · sci-fi · military · adult · violent-conflict · humor · super-powered · soldiers · space-opera · space · aliens · first-contact · invasion · book · supernatural · colonization · galactic-empire · action-adventure · space-fleet · genetic-engineering
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Fated Mates of the Titan Empire
by Tammy Walsh
4.15 · 27 ratings
aliens · fiction · humor · sci-fi · colonization · book · invasion · romance · adult · genetic-engineering · violent-conflict · first-contact · galactic-empire · space-travel · space-opera · paranormal · action-adventure · military · new-adult · prison
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The Reluctant Adventures of Fletcher Connolly on the Interstellar Railroad
by Felix R. Savage
3.85 · 20 ratings
exploration · fiction · humor · sci-fi · space-travel · audiobook · adult · space · book · action-adventure · galactic-empire · anti-hero · cyberpunk · dystopia · colonization · supernatural · literary · space-opera · classics · aliens
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Blackstone Fortress
by Darius Hinks
3.73 · 11 ratings
violent-conflict · fiction · sci-fi · adult · dystopia · military · book · invasion · aliens · exploration · colonization · supernatural · galactic-empire · space-opera · space-travel · soldiers · space · genetic-engineering · first-contact · space-fleet
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Torian Reclamation
by Andy Kasch
3.67 · 9 ratings
military · first-contact · space · violent-conflict · adult · sci-fi · space-opera · galactic-empire · aliens · fiction · book · dystopia · space-travel · colonization · exploration · invasion · spirituality
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Outer Settlement Agency
by Lyn Brittan
3.67 · 9 ratings
military · adult · sci-fi · action-adventure · aliens · fiction · romance · book · humor · paranormal · space-fleet · soldiers · dystopia · space-opera · galactic-empire · poc-mc · colonization · billionaire · black-mc · enemies-to-lovers
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Black Library Celebration 2020
by Miles A. Drake
4.00 · 8 ratings
adult · fiction · book · fantasy · dystopia · high-fantasy · space · genetic-engineering · myths · galactic-empire · colonization · supernatural · scandinavia · invasion · historical · space-fleet · violent-conflict · first-contact · military · retellings
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Armada Wars
by R. Curtis Venture
3.80 · 5 ratings
invasion · adult · violent-conflict · book · colonization · aliens · fiction · space-opera · galactic-empire · military · space · space-fleet · dystopia · action-adventure · soldiers · sci-fi · first-contact · genetic-engineering · futuristic · war
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Antonello Brothers
by Kayelle Allen
4.20 · 5 ratings
book · adult · fiction · dystopia · romance · space-opera · sci-fi · genetic-engineering · galactic-empire · paranormal · colonization · mlm · first-contact · military · dark · action-adventure · humor · royalty · shapeshifters · steamy
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