Battlefield Mars
by David Robbins
3.75 · 4 ratings
soldiers · aliens · fiction · book · invasion · adult · violent-conflict · first-contact · military · colonization · space · action-adventure · exploration · sci-fi · monsters · horror · galactic-empire · space-travel
Battlefield Mars: Similar series
Legacy Fleet Trilogy
by Nick Webb
4.10 · 89 ratings
action-adventure · supernatural · soldiers · sci-fi · galactic-empire · space-opera · first-contact · space-travel · military · audiobook · adult · space-fleet · space · violent-conflict · invasion · war · book · technothriller · colonization · exploration
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Undying Mercenaries
by B.V. Larson
4.28 · 383 ratings
war · aliens · soldiers · fiction · sci-fi · space-opera · military · violent-conflict · space-fleet · adult · invasion · book · colonization · galactic-empire · audiobook · space · first-contact · space-travel · hard-sci-fi · exploration
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First Colony
by Ken Lozito
4.19 · 153 ratings
space · violent-conflict · invasion · book · aliens · exploration · fiction · soldiers · sci-fi · space-opera · first-contact · military · adult · colonization · space-travel · audiobook · war · action-adventure · space-fleet · mystery
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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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Rise of the Republic
by James Rosone
4.38 · 89 ratings
book · invasion · fiction · aliens · space-opera · soldiers · adult · space-fleet · space · violent-conflict · first-contact · military · audiobook · colonization · galactic-empire · sci-fi · war · hard-sci-fi · action-adventure · exploration
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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
military · space-fleet · adult · violent-conflict · soldiers · galactic-empire · colonization · aliens · fiction · invasion · book · space · sci-fi · space-travel · action-adventure · exploration · first-contact · space-opera · war · audiobook
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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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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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Crimson Worlds
by Jay Allan
4.11 · 172 ratings
fiction · war · violent-conflict · adult · military · sci-fi · book · space · space-opera · soldiers · aliens · space-fleet · audiobook · first-contact · galactic-empire · action-adventure · exploration · invasion · space-travel · colonization
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The Lost Fleet
by Raymond L. Weil
4.31 · 42 ratings
space · invasion · book · colonization · aliens · exploration · fiction · 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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Forsaken Mercenary
by Jonathan Yanez
4.37 · 101 ratings
book · space · action-adventure · fiction · sci-fi · adult · post-apocalyptic · colonization · violent-conflict · genetic-engineering · cyberpunk · space-opera · historical · invasion · steampunk · industrial-era · aliens · first-contact · supernatural · soldiers
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Dawn of Fire
by Guy Haley
3.97 · 37 ratings
space · exploration · fiction · soldiers · sci-fi · military · space-fleet · adult · violent-conflict · book · genetic-engineering · grim-dark · aliens · action-adventure · first-contact · invasion · colonization · galactic-empire · space-opera · audiobook
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Omega War
by Jason Córdova
4.45 · 80 ratings
aliens · exploration · fiction · action-adventure · sci-fi · colonization · literary-fiction · book · invasion · adult · space-fleet · space · violent-conflict · first-contact · military · galactic-empire · space-travel · soldiers · space-opera · friendship
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The Pike Chronicles
by G.P. Hudson
4.00 · 26 ratings
fiction · action-adventure · soldiers · galactic-empire · sci-fi · space-travel · space-opera · first-contact · military · adult · violent-conflict · space · invasion · book · colonization · aliens · exploration · supernatural
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Stellar Conquest
by David VanDyke
4.31 · 26 ratings
space-fleet · invasion · hard-sci-fi · book · colonization · aliens · exploration · fiction · soldiers · sci-fi · space-opera · space-travel · galactic-empire · military · first-contact · space · violent-conflict · adult · ai
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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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The Eurynome Code
by K. Gorman
4.27 · 22 ratings
adult · book · space · fiction · sci-fi · space-opera · military · female-author · violent-conflict · first-contact · space-fleet · colonization · galactic-empire · audiobook · genetic-engineering · female-mc · action-adventure · aliens · soldiers · space-travel
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Lunar Free State
by John E. Siers
4.40 · 15 ratings
literary-fiction · book · invasion · aliens · exploration · fiction · action-adventure · colonization · galactic-empire · space-opera · space-travel · soldiers · sci-fi · space-fleet · space · violent-conflict · first-contact · military · war · adult
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Ambassador
by Patty Jansen
4.08 · 38 ratings
fiction · book · adult · space-opera · aliens · space · sci-fi · colonization · violent-conflict · military · first-contact · invasion · space-travel · exploration · galactic-empire · soldiers · alternate-history · politics · genetic-engineering · space-fleet
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Alpha Alien
by Flora Dare
3.37 · 19 ratings
fiction · romance · steamy · sci-fi · adult · aliens · paranormal · contemporary · inter-galactic · book · space · humor · galactic-empire · exploration · genetic-engineering · invasion · colonization · soldiers · space-travel · first-contact
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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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Lost on the Last Continent
by John C. Wright
4.00 · 5 ratings
galactic-empire · space-travel · soldiers · adult · space-fleet · space · first-contact · violent-conflict · military · time-travel · literary-fiction · book · invasion · fiction · aliens · exploration · action-adventure · colonization · sci-fi · male-author
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