Spartan Company
by Toby Neighbors
4.36 · 14 ratings
violent-conflict · book · aliens · fiction · young-adult · soldiers · sci-fi · first-contact · military · colonization · exploration · epic · space-travel · space-fleet · space
Spartan Company: Similar series
Undying Mercenaries
by B.V. Larson
4.28 · 383 ratings
space-opera · colonization · invasion · book · audiobook · space · galactic-empire · aliens · fiction · war · military · space-fleet · adult · violent-conflict · soldiers · sci-fi · first-contact · space-travel · hard-sci-fi · exploration
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The Adventures of a Xeno-Archaeologist
by Jenny Schwartz
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
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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Blood on the Stars
by Jay Allan
4.33 · 243 ratings
fiction · aliens · exploration · first-contact · military · space-fleet · adult · violent-conflict · soldiers · sci-fi · space-travel · space-opera · invasion · book · space · galactic-empire · colonization · war · audiobook · action-adventure
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Drop Trooper
by Rick Partlow
4.38 · 152 ratings
book · invasion · aliens · fiction · colonization · galactic-empire · soldiers · adult · space-fleet · violent-conflict · military · exploration · action-adventure · space-travel · sci-fi · space · space-opera · first-contact · war · audiobook
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Delphi in Space
by Bob Blanton
4.38 · 134 ratings
space-fleet · violent-conflict · first-contact · military · book · aliens · fiction · action-adventure · young-adult · space-travel · sci-fi · space · audiobook · exploration · invasion · space-opera · colonization · ai · coming-of-age · slavery
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Aurora Rising
by G.S. Jennsen
4.13 · 66 ratings
first-contact · military · sci-fi · space-opera · space-travel · fiction · action-adventure · cyberpunk · galactic-empire · colonization · book · space-fleet · violent-conflict · aliens · exploration · space · ai · romance · adult · soldiers
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AI Reborn
by Isaac Hooke
4.10 · 36 ratings
colonization · exploration · fiction · aliens · invasion · book · apocalyptic · military · first-contact · violent-conflict · space · cyberpunk · cyborgs · adult · soldiers · space-fleet · sci-fi · ai · space-opera · space-travel
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Crimson Worlds Refugees
by Jay Allan
4.29 · 60 ratings
exploration · fiction · soldiers · galactic-empire · sci-fi · space-travel · space-opera · first-contact · audiobook · military · space-fleet · adult · violent-conflict · space · invasion · book · colonization · aliens · action-adventure · war
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The Lost Fleet
by Raymond L. Weil
4.31 · 42 ratings
space · invasion · book · colonization · exploration · fiction · aliens · soldiers · galactic-empire · sci-fi · space-opera · space-travel · first-contact · audiobook · military · space-fleet · adult · violent-conflict · war · historical-fiction
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SSG Vanhorn
by Toby Neighbors
4.46 · 31 ratings
military · violent-conflict · space · space-fleet · soldiers · sci-fi · galactic-empire · action-adventure · young-adult · aliens · fiction · book · first-contact · space-travel · colonization · exploration · war
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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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The Bad Company
by Craig Martelle
4.52 · 58 ratings
genetic-engineering · space-fleet · military · violent-conflict · first-contact · space-opera · soldiers · fiction · book · space · space-travel · sci-fi · exploration · young-adult · audiobook · aliens · adult · paranormal · action-adventure · fantasy
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Valerie’s Elites
by Justin Sloan
4.51 · 31 ratings
action-adventure · aliens · exploration · fiction · colonization · book · invasion · genetic-engineering · space · space-fleet · audiobook · military · violent-conflict · first-contact · space-travel · galactic-empire · soldiers · sci-fi · young-adult · vampires
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Ace Evans
by Toby Neighbors
4.39 · 30 ratings
space-travel · colonization · aliens · exploration · fiction · young-adult · book · military · space-fleet · space · violent-conflict · soldiers · sci-fi · action-adventure · children-books · war
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Omega War
by Jason Córdova
4.45 · 80 ratings
literary-fiction · book · invasion · aliens · exploration · fiction · action-adventure · colonization · galactic-empire · space-travel · soldiers · sci-fi · adult · space-fleet · space · violent-conflict · first-contact · military · space-opera · audiobook
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A.I. Destiny
by Timothy Ellis
4.25 · 40 ratings
coming-of-age · galactic-empire · space · cyberpunk · book · young-adult · supernatural · space-travel · space-opera · soldiers · epic · sci-fi · violent-conflict · space-fleet · military · first-contact · exploration · fiction · invasion · colonization
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Stellar Conquest
by David VanDyke
4.31 · 26 ratings
space · hard-sci-fi · invasion · book · colonization · aliens · exploration · fiction · soldiers · galactic-empire · sci-fi · space-travel · space-opera · first-contact · military · space-fleet · adult · violent-conflict · ai
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Shadow Corps
by Justin Sloan
4.00 · 17 ratings
violent-conflict · book · invasion · fiction · aliens · super-powered · young-adult · space · space-fleet · first-contact · military · audiobook · post-apocalyptic · exploration · colonization · space-travel · soldiers · sci-fi · litrpg · genetic-engineering
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Alpha Alien
by Flora Dare
3.37 · 19 ratings
romance · steamy · aliens · fiction · adult · sci-fi · book · contemporary · inter-galactic · paranormal · space · colonization · invasion · genetic-engineering · galactic-empire · action-adventure · humor · exploration · fated-mates · military
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Blackstone Fortress
by Darius Hinks
3.73 · 11 ratings
adult · violent-conflict · fiction · sci-fi · military · dystopia · space · invasion · book · colonization · supernatural · exploration · aliens · soldiers · galactic-empire · space-travel · space-opera · first-contact · space-fleet · genetic-engineering
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Dead Enders
by Mike Resnick
3.11 · 9 ratings
espionage · space-opera · violent-conflict · galactic-empire · political-intrigue · aliens · exploration · military · fiction · sci-fi · first-contact · book · soldiers · space-fleet · action-adventure · space · quest · survival · audiobook · space-travel
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Mech. Chronicles
by Adam Moon
3.70 · 10 ratings
space · sci-fi · space-fleet · book · violent-conflict · space-opera · soldiers · aliens · exploration · fiction · super-powered · space-travel · young-adult · military · first-contact · galactic-empire · colonization · romantic-love · mlm · action-adventure
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Lone Wolf Squadron
by Jamie Davis
4.83 · 6 ratings
soldiers · fiction · space-travel · galactic-empire · space-opera · violent-conflict · book · space-fleet · military · space · genetic-engineering · exploration · sci-fi · first-contact · invasion · supernatural · young-adult · aliens · adult · action-adventure
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