The Twelve Systems Chronicles: Similar romance series

Kinsmen

by Ilona Andrews

4.17 · 124 ratings

space-opera · assassins · sci-fi · adult · magic · futuristic · action-adventure · fiction · female-mc · political-intrigue · paranormal · space · alpha-mc · audiobook · steamy · romance · urban-fantasy · drama · slow-burn · aliens

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The Firebird Chronicles

by T.A. White

4.52 · 112 ratings

fiction · space-opera · sci-fi · urban-fantasy · book · paranormal · action-adventure · humor · aliens · female-mc · friendship · slow-burn · futuristic · magic · military · romance · space · alpha-mc · dystopia · adult

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Endeavor

by Amanda Bouchet

3.88 · 52 ratings

female-mc · fiction · action-adventure · romance · book · adult · alpha-mc · space · paranormal · sci-fi · space-travel · outlaws · urban-fantasy · futuristic · steamy · multi-pov · audiobook · dystopia · suspense · space-opera

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Scorpius Syndrome

by Rebecca Zanetti

4.16 · 133 ratings

adult · action-adventure · fiction · dystopia · romance · urban-fantasy · futuristic · suspense · paranormal · contemporary · post-apocalyptic · military · apocalyptic · zombies · sci-fi · alpha-mc · dark · female-mc · book · audiobook

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Marriage Raffle

by Stasia Black

4.01 · 87 ratings

steamy · polyamory · military · adult · sci-fi · female-mc · poc-mc · action-adventure · fiction · futuristic · apocalyptic · audiobook · dystopia · post-apocalyptic · romance · reverse-harem · book · new-adult · suspense · dark

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The Bridge Sequence

by Nathan Hystad

4.35 · 51 ratings

futuristic · post-apocalyptic · violent-conflict · invasion · book · fiction · aliens · action-adventure · travel · suspense · sci-fi · space-opera · first-contact · audiobook · adult · dystopia · romance · mystery · contemporary · industrial-era

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Metahuman Files: Classified

by Hailey Turner

4.31 · 37 ratings

action-adventure · mystery · fiction · lgbtq · crime · drama · war · futuristic · violent-conflict · adult · military · sci-fi · mlm · urban-fantasy · book · steamy · romance · dystopia · audiobook · billionaire

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Trilogy of Eve

by Pam Godwin

4.05 · 47 ratings

post-apocalyptic · romance · steamy · book · dystopia · alpha-mc · zombies · paranormal · female-mc · fiction · futuristic · apocalyptic · horror · adult · dark · supernatural · suspense · angst · mlm · reverse-harem

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Dark Space

by Lisa Henry

4.02 · 42 ratings

book · military · adult · violent-conflict · sci-fi · space-opera · aliens · fiction · action-adventure · futuristic · lgbtq · war · dystopia · space · angst · mlm · romance · dark · mystery · audiobook

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Turbulence

by Lyn Gala

3.92 · 29 ratings

steamy · book · romance · mlm · sci-fi · violent-conflict · adult · military · lgbtq · war · futuristic · action-adventure · fiction · space · dystopia · disability · contemporary · space-opera · bisexuality · slow-burn

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Badlands

by Natalie Bennett

4.25 · 84 ratings

horror · book · adult · dark · fiction · dystopia · romance · steamy · apocalyptic · contemporary · alpha-mc · sci-fi · anti-hero · kidnapping · action-adventure · crime · madness · survival · suspense · female-mc

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Chaos Station

by Jenn Burke

4.16 · 45 ratings

romance · book · steamy · mlm · suspense · billionaire · space · futuristic · lgbtq · war · aliens · fiction · action-adventure · sci-fi · space-opera · military · adult · violent-conflict · friends-to-lovers · second-chances

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Saving Caeorleia

by Alicia Nordwell

3.96 · 26 ratings

military · adult · dark · sci-fi · aliens · fiction · action-adventure · futuristic · lgbtq · dystopia · mlm · abuse · romance · book · steamy · violent-conflict · space-opera · war · family · space

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An Uncommon Whore

by Belinda McBride

3.79 · 34 ratings

futuristic · aliens · fiction · sci-fi · adult · romance · steamy · book · mlm · lgbtq · action-adventure · slavery · abuse · suspense · war · family · dark · space-opera · military · violent-conflict

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The Phoenix Adventures

by Anna Hackett

4.17 · 107 ratings

sci-fi · book · fiction · adult · steamy · romance · aliens · action-adventure · dystopia · space · paranormal · alpha-mc · female-mc · futuristic · space-opera · post-apocalyptic · enemies-to-lovers · suspense · mystery · cyborgs

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2176 Series

by Kathleen Nance

3.68 · 34 ratings

book · romance · paranormal · space · futuristic · action-adventure · fiction · sci-fi · adult · time-travel · urban-fantasy · dystopia · military · steamy · post-apocalyptic · suspense · female-mc · space-opera · gothic · royalty

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Asterion Noir

by G.S. Jennsen

4.39 · 18 ratings

cyberpunk · genetic-engineering · space · audiobook · galactic-empire · politics · suspense · colonization · book · technothriller · invasion · romance · space-fleet · adult · violent-conflict · first-contact · horror · military · space-travel · space-opera

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The Uncaged

by Amber Ella Monroe

3.86 · 35 ratings

super-powered · fantasy · omegaverse · fiction · romance · book · shapeshifters · adult · paranormal · suspense · dystopia · action-adventure · sci-fi · steamy · fated-mates · futuristic · forced-proximity · supernatural · witches-wizards · psychics

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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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Valiant Knox

by Jess Anastasi

4.00 · 12 ratings

romance · adult · book · space · futuristic · war · action-adventure · fiction · sci-fi · space-opera · military · violent-conflict · killer · suspense · steamy · contemporary · aliens · dark · mental-illness · kidnapping

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The Tomb

by Ella Burns

3.91 · 11 ratings

dystopia · alpha-mc · book · adult · sci-fi · dark · fiction · fighter · suspense · gothic · romance · anti-hero · paranormal · abuse · steamy · sexual-assault · prison · poc-mc · age-gap · contemporary

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Dark Mate-Claim

by Nora Ash

4.25 · 8 ratings

dark · fiction · paranormal · suspense · enemies-to-lovers · sci-fi · audiobook · dystopia · adult · romance · steamy · book · omegaverse · contemporary · military · alpha-mc · action-adventure · graphic-violence · ai · anti-hero

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The Apprentice

by E.G. Manetti

4.25 · 16 ratings

sci-fi · fiction · space-opera · adult · book · steamy · suspense · epic · dystopia · romance · futuristic · female-author · far-future · aliens · paranormal · romantic-love · space · magic · organized-crime · lgbtq

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