Proving Grounds Trilogy
by Martin Delrio
3.50 · 12 ratings
book · sci-fi · violent-conflict · adult · fiction · military · space-opera · galactic-empire · soldiers · invasion · hard-sci-fi · space
Proving Grounds Trilogy: Similar series
Island in the Sea of Time
by S.M. Stirling
4.00 · 54 ratings
apocalyptic · war · wlw · action-adventure · fiction · alternate-history · romantic-love · sci-fi · violent-conflict · historical · adult · military · book · historical-fiction · time-travel · post-apocalyptic · audiobook · steampunk · industrial-era · alternate-universe
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Eisenhorn
by Dan Abnett
4.20 · 179 ratings
grim-dark · fiction · sci-fi · book · adult · space-opera · audiobook · military · violent-conflict · pulp · action-adventure · mystery · dystopia · space · dark · horror · war · demons · dark-fantasy · political-intrigue
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The Company Wars
by C.J. Cherryh
4.00 · 141 ratings
fiction · sci-fi · space-opera · space · female-author · adult · audiobook · hard-sci-fi · book · dystopia · violent-conflict · military · historical · anthologies · futuristic · action-adventure · 20th-century · colonization · aliens · far-future
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Halo
by Eric S. Nylund
4.06 · 532 ratings
sci-fi · action-adventure · fiction · violent-conflict · military · audiobook · book · space · adult · soldiers · aliens · space-opera · war · space-fleet · young-adult · first-contact · invasion · anthologies · university · female-author
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Black Tide Rising
by John Ringo
4.26 · 185 ratings
post-apocalyptic · action-adventure · fiction · sci-fi · horror · adult · zombies · apocalyptic · military · violent-conflict · urban-fantasy · audiobook · alternate-history · book · suspense · war · dystopia · humor · anthologies · contemporary
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Dread Empire's Fall
by Walter Jon Williams
3.90 · 92 ratings
fiction · war · adult · violent-conflict · military · space-opera · sci-fi · book · space · action-adventure · space-fleet · galactic-empire · aliens · audiobook · female-mc · hard-sci-fi · first-contact · space-travel · invasion · suspense
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Reality Benders
by Michael Atamanov
4.42 · 102 ratings
invasion · book · audiobook · litrpg · space · cyberpunk · action-adventure · aliens · fiction · first-contact · violent-conflict · sci-fi · alternate-history · super-powered · adult · magic · space-opera · galactic-empire · contemporary · war
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Atlas
by Isaac Hooke
3.94 · 34 ratings
first-contact · audiobook · military · space-fleet · adult · violent-conflict · space · soldiers · sci-fi · space-opera · fiction · action-adventure · war · book · dystopia · galactic-empire · robots · aliens · hard-sci-fi · invasion
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Starfist
by David Sherman
3.88 · 147 ratings
space-opera · sci-fi · adult · space · violent-conflict · military · war · fiction · soldiers · book · action-adventure · workplace · cyberpunk · dystopia · post-apocalyptic · technology · hard-sci-fi · aliens · time-travel · space-travel
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Призрачный Сервер
by Andrei Livadny
3.90 · 30 ratings
adult · dystopia · historical · book · violent-conflict · virtual-reality · wuxia · ancient-civilization · aliens · fiction · ancient-china · sci-fi · space-opera · audiobook · military · litrpg · space · cyberpunk · male-mc · space-fleet
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Sector 64
by Dean M. Cole
4.01 · 29 ratings
aliens · fiction · action-adventure · post-apocalyptic · invasion · apocalyptic · book · military · audiobook · adult · space · violent-conflict · sci-fi · space-opera · alternate-history · hard-sci-fi · first-contact · technothriller · dystopia
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The Siege of Terra
by Dan Abnett
4.18 · 116 ratings
space · audiobook · violent-conflict · adult · military · sci-fi · action-adventure · exploration · fiction · genetic-engineering · book · space-fleet · space-opera · soldiers · grim-dark · galactic-empire · colonization · invasion · first-contact · aliens
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The Originator Wars
by Raymond L. Weil
4.43 · 28 ratings
space-opera · galactic-empire · space-travel · soldiers · sci-fi · space · space-fleet · adult · audiobook · military · violent-conflict · first-contact · book · invasion · aliens · exploration · fiction · colonization · ai · male-author
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Outlaws of the Midwest
by Jack Hunt
4.46 · 26 ratings
pulp · suspense · sci-fi · violent-conflict · survival · dystopia · male-mc · military · adult · horror · book · apocalyptic · post-apocalyptic · action-adventure · terrorism · fiction · female-mc · death
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Star Trek: Terok Nor
by S.D. Perry
4.00 · 22 ratings
space-opera · sci-fi · adult · space · genetic-engineering · violent-conflict · first-contact · book · invasion · aliens · fiction · action-adventure · military · journey
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Seas of Venus
by David Drake
3.59 · 22 ratings
action-adventure · fiction · sci-fi · violent-conflict · adult · military · book · war · dystopia · horror · crime · anthologies · aliens · colonization · pulp · politics · box-set · space · audiobook
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The Alliance Trilogy
by Michael Wallace
4.15 · 20 ratings
book · first-contact · military · adult · space-fleet · space · violent-conflict · sci-fi · galactic-empire · space-opera · space-travel · aliens · fiction · action-adventure · invasion · audiobook · soldiers · exploration · colonization
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Voittaja
by Jerry Ahern
3.81 · 72 ratings
book · dystopia · survival · post-apocalyptic · violent-conflict · audiobook · fiction · action-adventure · adult · apocalyptic · sci-fi · political-intrigue · pulp · war · terrorism · military · 20th-century · historical · alternate-history · horror
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The Shadow Order
by Michael Robertson
3.95 · 39 ratings
violent-conflict · space · military · space-opera · sci-fi · aliens · fiction · book · invasion · adult · soldiers · galactic-empire · space-fleet · first-contact · space-travel · exploration · action-adventure · colonization · super-powered · disaster
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Battle Earth
by Nick S. Thomas
3.79 · 53 ratings
action-adventure · space-opera · military · adult · space · violent-conflict · book · aliens · fiction · soldiers · invasion · galactic-empire · sci-fi · box-set · audiobook · war · first-contact · space-fleet · futuristic
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Scifi Alien Human Romance
by Deiri Di
4.08 · 12 ratings
sci-fi · adult · book · romance · aliens · fiction · violent-conflict · space · military · invasion · action-adventure · paranormal · new-adult · contemporary · first-contact · slow-burn · futuristic · colonization
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Warriors of Risnar
by Tracy St. John
3.60 · 10 ratings
book · romance · action-adventure · aliens · fiction · sci-fi · paranormal · adult · invasion · female-mc · violent-conflict · military · steamy · kind-mc · enemies-to-lovers · alpha-mc · expert
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Outlanders
by James Axler
3.78 · 59 ratings
book · post-apocalyptic · fiction · adult · action-adventure · sci-fi · audiobook · apocalyptic · horror · violent-conflict · dystopia · military · male-mc · contemporary · aliens · steamy · invasion · pulp · first-contact · fantasy
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The Ephialtes Series
by Gavin E. Parker
4.00 · 5 ratings
colonization · military · violent-conflict · space · space-fleet · adult · fiction · sci-fi · space-opera · book · anthologies · box-set
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