Gladiators of the Vagabond: Similar romance series

Catteni

by Anne McCaffrey

3.96 · 124 ratings

sci-fi · space-travel · space-opera · female-author · first-contact · adult · violent-conflict · futuristic · aliens · fiction · action-adventure · audiobook · dystopia · space · invasion · romance · other-world · colonization · female-mc · survival

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Corsairs

by Ruby Dixon

4.04 · 140 ratings

dark · adult · sci-fi · fated-mates · aliens · fiction · outlaws · paranormal · alpha-mc · space · multi-pov · book · kidnapping · steamy · romance · abuse · slavery · action-adventure · humor · friends-to-lovers

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The League: Nemesis Rising

by Sherrilyn Kenyon

4.36 · 420 ratings

romance · adult · fiction · paranormal · book · supernatural · urban-fantasy · audiobook · futuristic · military · action-adventure · political-intrigue · suspense · assassins · space-opera · aliens · space · warriors · fantasy · humor

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Tornians

by M.K. Eidem

4.18 · 208 ratings

adult · aliens · fiction · sci-fi · paranormal · steamy · romance · warriors · space · alpha-mc · royalty · book · futuristic · audiobook · children · space-opera · action-adventure · new-adult · contemporary · military

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Aldebarian Alliance

by Dianne Duvall

4.37 · 89 ratings

romance · book · vampires · paranormal · audiobook · alpha-mc · female-mc · action-adventure · aliens · fiction · sci-fi · adult · space · humor · military · first-contact · steamy · urban-fantasy · suspense · contemporary

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Theirs Not to Reason Why

by Jean Johnson

4.07 · 88 ratings

space · paranormal · invasion · book · time-travel · military · first-contact · violent-conflict · magic · adult · soldiers · sci-fi · space-travel · space-opera · female-mc · action-adventure · aliens · fiction · futuristic · war

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Cosmos' Gateway

by S.E. Smith

4.17 · 138 ratings

audiobook · contemporary · alpha-mc · romance · sci-fi · aliens · fiction · paranormal · invasion · book · first-contact · military · space-fleet · adult · violent-conflict · soldiers · action-adventure · futuristic · steamy · alternate-history

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Trade Pact Universe

by Julie E. Czerneda

3.94 · 44 ratings

time-travel · female-author · first-contact · adult · sci-fi · space-opera · female-mc · psychics · action-adventure · aliens · fiction · space · paranormal · anthologies · romance · military · violent-conflict · alpha-mc · dystopia · colonization

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Destiny's Crucible

by Olan Thorensen

4.18 · 101 ratings

historical-fiction · time-travel · audiobook · war · action-adventure · portal-travel · aliens · fiction · violent-conflict · military · book · epic · adult · paranormal · sci-fi · colonization · ai · grim-dark · alternate-history · space-opera

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Time Hunters

by Angela Knight

3.95 · 65 ratings

time-travel · steamy · romance · urban-fantasy · paranormal · fiction · adult · ghosts · supernatural · cyborgs · futuristic · book · shapeshifters · alpha-mc · contemporary · aliens · sci-fi · military · anthologies · vampires

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Stolen Brides

by Shelly Thacker

3.98 · 64 ratings

historical · adult · historical-fiction · fiction · medieval · europe · romance · scotland · united-kingdom · british-isles · book · steamy · military · action-adventure · audiobook · suspense · paranormal · time-travel · dark · sci-fi

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Divinity Warriors

by Michelle M. Pillow

3.85 · 41 ratings

steamy · book · other-world · romance · paranormal · alpha-mc · audiobook · futuristic · warriors · aliens · fiction · adult · first-contact · urban-fantasy · action-adventure · exploration · witches-wizards · space-travel · sword-sorcery · historical

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Delroi Connection

by Loribelle Hunt

3.69 · 48 ratings

adult · military · action-adventure · fiction · book · alpha-mc · paranormal · sci-fi · aliens · steamy · futuristic · romance · space-travel · space-opera · female-mc · psychics · other-world · fated-mates · space · soldiers

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First Salik War

by Jean Johnson

4.00 · 28 ratings

space-opera · invasion · romance · book · space · paranormal · female-mc · fiction · action-adventure · aliens · war · first-contact · military · magic · adult · violent-conflict · sci-fi · royalty · other-world · time-travel

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Shamans & Shifters Space Opera

by Jenny Schwartz

4.33 · 46 ratings

adult · romance · book · shapeshifters · paranormal · space · action-adventure · aliens · fiction · sci-fi · space-travel · space-opera · first-contact · futuristic · outlaws · magic · colonization · fae · galactic-empire · cyberpunk

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Verdant String

by Michelle Diener

4.20 · 59 ratings

aliens · female-mc · fiction · adult · space-opera · sci-fi · romance · alpha-mc · action-adventure · book · space · multi-pov · mystery · crime · military · soldiers · galactic-empire · futuristic · paranormal · ai

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The Ravager Chronicles

by Sara Page

3.86 · 42 ratings

sci-fi · adult · polyamory · aliens · fiction · paranormal · book · reverse-harem · steamy · romance · space-opera · action-adventure · poc-mc · space · military · fated-mates · royalty · space-travel · dark · demons

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Anomaly

by Sandy Williams

3.87 · 25 ratings

fiction · sci-fi · paranormal · space-opera · military · adult · romance · book · action-adventure · soldiers · alpha-mc · historical · steampunk · industrial-era · time-travel · urban-fantasy · female-mc · aliens · slow-burn · galactic-empire

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Wickedest Witch

by Meg Xuemei X

4.04 · 26 ratings

book · romance · vampires · paranormal · fiction · adult · shapeshifters · angels · suspense · gothic · steamy · post-apocalyptic · supernatural · audiobook · action-adventure · witches-wizards · demons · sci-fi · time-travel · alpha-mc

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Olympia Alien Mail Order Brides

by K. Cantrell

3.75 · 16 ratings

sci-fi · aliens · fiction · romance · adult · genetic-engineering · book · space-opera · action-adventure · paranormal · military · first-contact · contemporary · steamy · fantasy · arranged-marriage · myths · suspense · humor · abuse

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