Survival of the Fittest: Similar romance series

Children of Time

by Adrian Tchaikovsky

4.18 · 100 ratings

book · audiobook · space · ai · action-adventure · aliens · fiction · hard-sci-fi · first-contact · violent-conflict · adult · sci-fi · space-travel · space-opera · invasion · post-apocalyptic · contemporary · 21st-century · genetic-engineering · survival

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Xenogenesis

by Octavia E. Butler

4.25 · 151 ratings

female-author · first-contact · horror · poc-author · post-apocalyptic · classics · literary · feminism · space · dystopia · apocalyptic · lgbtq · action-adventure · afrofuturism · aliens · fiction · female-mc · poc-mc · 20th-century · sci-fi

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Steel Demons MC

by Crystal Ash

4.42 · 233 ratings

dystopia · supernatural · romance · book · reverse-harem · adult · biker · fiction · paranormal · post-apocalyptic · steamy · polyamory · new-adult · futuristic · apocalyptic · urban-fantasy · dark · female-mc · alpha-mc · harem

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Hell Divers

by Nicholas Sansbury Smith

4.23 · 176 ratings

audiobook · book · action-adventure · fiction · dystopia · survival · post-apocalyptic · adult · horror · sci-fi · apocalyptic · cyberpunk · technothriller · violent-conflict · military · space · suspense · monsters · genetic-engineering · colonization

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Extinction Cycle

by Nicholas Sansbury Smith

4.23 · 170 ratings

sci-fi · post-apocalyptic · audiobook · fiction · action-adventure · apocalyptic · adult · horror · medical · book · dystopia · zombies · war · monsters · military · epidemy · genetic-engineering · survival · soldiers · suspense

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Hold

by Claire Kent

3.69 · 67 ratings

sci-fi · adult · futuristic · aliens · fiction · audiobook · dystopia · space · post-apocalyptic · romance · steamy · book · action-adventure · paranormal · alpha-mc · dark · new-adult · slow-burn · forced-proximity · survival

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Tamer: King of Dinosaurs

by Michael-Scott Earle

4.28 · 88 ratings

adult · audiobook · litrpg · polyamory · survival · fantasy · action-adventure · fiction · harem · steamy · book · sci-fi · romance · aliens · pulp · paranormal · dystopia · magic · male-mc · satire

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Pykh

by Eileen Glass

4.00 · 48 ratings

lgbtq · action-adventure · aliens · fiction · omegaverse · sci-fi · adult · polyamory · military · book · steamy · romance · mlm · paranormal · survival · humor · space · dystopia · audiobook · age-gap

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AL:ICE

by Charles W. Lamb

4.13 · 46 ratings

aliens · fiction · soldiers · space-opera · sci-fi · audiobook · military · first-contact · litrpg · space · violent-conflict · dystopia · invasion · adult · book · apocalyptic · time-travel · harem · action-adventure · paranormal

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The Tide

by Anthony J. Melchiorri

4.26 · 123 ratings

adult · horror · action-adventure · fiction · apocalyptic · genetic-engineering · zombies · book · post-apocalyptic · military · sci-fi · monsters · war · dystopia · audiobook · conspiracies · technothriller · survival · political-intrigue · medical

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A Futuristic Dungeon Core

by Skyler Grant

4.00 · 77 ratings

post-apocalyptic · dystopia · genetic-engineering · litrpg · audiobook · fiction · action-adventure · super-powered · sci-fi · adult · ai · survival · war · monsters · comics · violent-conflict · military · book · space · apocalyptic

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Green Fields

by Adrienne Lecter

4.43 · 131 ratings

book · post-apocalyptic · zombies · dystopia · apocalyptic · fiction · action-adventure · epidemy · sci-fi · adult · horror · genetic-engineering · military · futuristic · romance · drama · audiobook · survival · dark · medical

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Extinction Cycle: Dark Age

by Nicholas Sansbury Smith

4.40 · 42 ratings

military · war · book · apocalyptic · monsters · post-apocalyptic · medical · fiction · action-adventure · epidemy · suspense · zombies · sci-fi · adult · genetic-engineering · dystopia · horror · audiobook · survival · colonization

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Extinction Survival

by Walt Browning

4.33 · 38 ratings

zombies · audiobook · genetic-engineering · survival · dystopia · post-apocalyptic · book · colonization · medical · sci-fi · epidemy · horror · adult · apocalyptic · monsters · action-adventure · fiction · dogs · military · animals

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Extinction New Zealand

by Adrian J. Smith

4.08 · 26 ratings

action-adventure · fiction · post-apocalyptic · book · apocalyptic · horror · audiobook · survival · adult · dystopia · epidemy · zombies · sci-fi · colonization · medical · monsters · genetic-engineering · suspense · body-horror · paranormal

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Supers: Ex Heroes

by Jamie Hawke

4.09 · 51 ratings

steamy · audiobook · super-powered · fiction · adult · harem · genetic-engineering · litrpg · action-adventure · cyberpunk · lgbtq · polyamory · book · fantasy · exploration · military · space-travel · comics · sci-fi · invasion

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Cherry Blossom Girls

by Harmon Cooper

4.06 · 51 ratings

harem · supernatural · genetic-engineering · paranormal · suspense · fiction · action-adventure · super-powered · adult · new-adult · comics · steamy · litrpg · audiobook · cyberpunk · humor · polyamory · sci-fi · historical-fiction · vampires

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Telepathic Space Pirates

by Carysa Locke

4.04 · 38 ratings

adult · space-fleet · romance · military · polyamory · space-opera · sci-fi · aliens · fiction · action-adventure · space · genetic-engineering · galactic-empire · reverse-harem · book · magic · outlaws · paranormal · psychics · space-travel

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Future Reborn

by Daniel Pierce

4.22 · 36 ratings

survival · post-apocalyptic · book · apocalyptic · fiction · action-adventure · sci-fi · cyberpunk · dystopia · adult · litrpg · audiobook · harem · futuristic · time-travel · steamy · contemporary

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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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Ignite

by Nora Phoenix

4.24 · 25 ratings

audiobook · dystopia · abuse · mlm · post-apocalyptic · romance · steamy · book · adult · sci-fi · aliens · fiction · futuristic · lgbtq · survival · polyamory · new-adult · action-adventure · slow-burn · apocalyptic

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Entangled Fates

by Joe Kuster

4.46 · 24 ratings

action-adventure · sci-fi · adult · cyberpunk · hard-sci-fi · steamy · book · harem · fiction · audiobook · polyamory · political-intrigue · ai · military · genetic-engineering · espionage · romance · technothriller · graphic-violence · galactic-empire

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Prison World

by Julie K. Cohen

4.00 · 24 ratings

sci-fi · adult · fiction · romance · book · reverse-harem · dark · space-travel · space-opera · polyamory · female-mc · alternate-history · action-adventure · humor · suspense · steamy · new-adult · military · aliens · paranormal

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