Roger Zelazny's Alien Speedway
by Jeffrey A. Carver
3.20 · 5 ratings
action-adventure · fiction · sci-fi · adult · book · young-adult · aliens · invasion · first-contact · violent-conflict · space-opera · anthologies · hard-sci-fi
Roger Zelazny's Alien Speedway: Similar series
Zombie Fallout
by Mark Tufo
4.37 · 374 ratings
zombies · fiction · monsters · apocalyptic · horror · book · post-apocalyptic · dystopia · audiobook · action-adventure · adult · humor · vampires · sci-fi · supernatural · paranormal · urban-fantasy · graphic-violence · epidemy · medical
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Fallen Empire
by Lindsay Buroker
4.19 · 315 ratings
space-opera · adult · action-adventure · fiction · sci-fi · space · book · romance · military · cyborgs · audiobook · space-fleet · female-author · galactic-empire · space-travel · exploration · humor · futuristic · female-mc · aliens
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Star Wars: The Han Solo Trilogy
by A.C. Crispin
3.90 · 70 ratings
audiobook · space-opera · sci-fi · action-adventure · fiction · violent-conflict · space · female-author · literary · aliens · classics · war · adult · military · young-adult · mystery · book · anthologies · university · box-set
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The Ember War Saga
by Richard Fox
4.25 · 170 ratings
space-opera · soldiers · sci-fi · space · violent-conflict · adult · military · audiobook · space-fleet · book · war · invasion · aliens · fiction · action-adventure · ai · dystopia · cyborgs · galactic-empire · post-apocalyptic
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Area 51
by Bob Mayer
3.95 · 192 ratings
first-contact · violent-conflict · adult · sci-fi · aliens · action-adventure · fiction · war · paranormal · book · military · soldiers · audiobook · mystery · conspiracies · political-intrigue · supernatural · technothriller · alternate-history · 20th-century
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Skylark
by E.E. "Doc" Smith
3.80 · 50 ratings
space · adult · literary · space-opera · sci-fi · fiction · classics · action-adventure · book · pulp · single-planet · male-author · space-fleet · contemporary · audiobook · military · violent-conflict · golden-age-mystery · aliens · literary-fiction
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Geostorm
by Bobby Akart
4.51 · 71 ratings
disaster · dystopia · book · apocalyptic · hard-sci-fi · post-apocalyptic · technothriller · action-adventure · fiction · sci-fi · audiobook · horror · survival · adult · male-mc · literary-fiction · suspense · natural-disaster · historical-fiction · family
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Empire Rising
by D.J. Holmes
4.49 · 102 ratings
exploration · fiction · soldiers · sci-fi · space-opera · space-travel · military · space · violent-conflict · adult · space-fleet · book · galactic-empire · colonization · action-adventure · invasion · war · aliens · suspense · audiobook
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Deadland
by Rachel Aukes
4.19 · 38 ratings
post-apocalyptic · book · audiobook · paranormal · zombies · action-adventure · fiction · futuristic · family · apocalyptic · horror · adult · sci-fi · epic · alpha-mc · survival · dystopia · suspense · female-mc · epidemy
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Galactogon
by Vasily Mahanenko
4.17 · 24 ratings
audiobook · book · fiction · galactic-empire · space-opera · sci-fi · adult · space-fleet · space · violent-conflict · litrpg · cyberpunk · military · first-contact · invasion · aliens · action-adventure · colonization · space-travel · soldiers
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Z-Burbia
by Jake Bible
4.17 · 48 ratings
apocalyptic · monsters · horror · audiobook · adult · zombies · sci-fi · fiction · humor · post-apocalyptic · book · dystopia · survival · paranormal · urban-fantasy · action-adventure · comedy · disaster
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Supreme Constellations
by Gun Brooke
4.07 · 31 ratings
adult · romance · space-opera · fiction · sci-fi · action-adventure · lgbtq · wlw · book · space · contemporary · suspense · age-gap · steamy · audiobook · military · enemies-to-lovers · lesbian-mc · soldiers · outlaws
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Catalyst
by J.K. Franks
4.40 · 20 ratings
action-adventure · sci-fi · adult · survival · post-apocalyptic · apocalyptic · book · fiction · zombies · military · audiobook · genetic-engineering · violent-conflict · dystopia · hard-sci-fi · crime · literary-fiction · humor · politics · disaster
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Alien Slave Masters
by Samantha Cayto
3.76 · 36 ratings
futuristic · lgbtq · aliens · fiction · dark · sci-fi · sexual-assault · adult · captivity · romance · steamy · book · abuse · mlm · enemies-to-lovers · dystopia · space · slavery · action-adventure · military
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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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Survivors Heart
by Debbie Cassidy
3.92 · 13 ratings
adult · aliens · dark · fiction · book · reverse-harem · sci-fi · romance · horror · action-adventure · space-opera · polyamory · steamy
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Alien Dragon Shifters
by Cara Bristol
4.14 · 21 ratings
aliens · fiction · paranormal · adult · romance · shapeshifters · fantasy · dragons · futuristic · book · sci-fi · steamy · action-adventure · suspense · conspiracies · political-intrigue · space-opera · secrets · betrayal · space
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The Outlands Pentalogy
by Rebecca Crunden
4.20 · 10 ratings
action-adventure · sci-fi · dystopia · oppression · post-apocalyptic · futuristic · apocalyptic · book · fiction · slavery · adult · romance · young-adult · steampunk · new-adult · suspense · lgbtq · contemporary · disability · mental-illness
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The Companion Chronicles
by Martin Day
3.68 · 37 ratings
audiobook · adult · sci-fi · fiction · book · action-adventure · time-travel · historical-fiction · historical · myths · crime · arizona · germany · usa · western-central-europe · urban · europe · north-america
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Space Portal Vector
by A. Phallus Si
3.44 · 9 ratings
sci-fi · book · steamy · lgbtq · romance · fiction · mlm · aliens · space-opera · adult · futuristic · action-adventure · coming-of-age · comedy · alternate-universe · assassins · political-intrigue · incest · bdsm · space
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Cryo Crisis
by Deiri Di
4.09 · 22 ratings
sci-fi · adult · aliens · fiction · military · romance · steamy · book · violent-conflict · apocalyptic · action-adventure · humor · time-travel · first-contact · space-fleet · space · colonization · box-set · medical · galactic-empire
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The Endure
by S.A. Huchton
4.00 · 4 ratings
fiction · sci-fi · romance · contemporary · book · new-adult · action-adventure · adult · young-adult · dystopia · military
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The Hunts
by Vardan Partamyan
4.83 · 6 ratings
action-adventure · adult · fiction · suspense · sci-fi · apocalyptic · book · dystopia · anthologies · post-apocalyptic
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