Alliance Holiday
by Alma Nilsson
4.33 · 3 ratings
holidays · fiction · adult · book · galactic-empire · first-contact · aliens · invasion · romance · sci-fi · season-winter · violent-conflict
Alliance Holiday: Similar series
Captured by Aliens
by A.G. Wilde
4.03 · 77 ratings
fiction · aliens · action-adventure · female-mc · adult · first-contact · sci-fi · book · steamy · romance · paranormal · dark · kidnapping · alpha-mc · galactic-empire · humor · poc-mc · slow-burn · violent-conflict · invasion
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Raider Warlords of the Vandar
by Tana Stone
4.30 · 142 ratings
book · adult · sci-fi · aliens · fiction · galactic-empire · romance · steamy · first-contact · female-mc · action-adventure · space · invasion · violent-conflict · humor · paranormal · new-adult · alpha-mc · audiobook · fighter
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Stolen Warriors
by Ella Maven
4.24 · 66 ratings
book · romance · sci-fi · adult · aliens · fiction · paranormal · steamy · galactic-empire · alpha-mc · kidnapping · invasion · dark · violent-conflict · first-contact · fated-mates · abuse · humor · revenge · monsters
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Alien Gladiators of Sikoda
by Madison Savage
3.98 · 28 ratings
abuse · female-mc · aliens · fiction · action-adventure · invasion · kidnapping · book · first-contact · fighter · adult · alpha-mc · violent-conflict · dark · sci-fi · warriors · barbarians · romance · galactic-empire · angst
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Aurora Rhapsody
by G.S. Jennsen
4.27 · 113 ratings
space-opera · space-travel · sci-fi · military · fiction · action-adventure · cyberpunk · colonization · space-fleet · violent-conflict · first-contact · exploration · galactic-empire · space · adult · aliens · book · soldiers · ai · invasion
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The Ravager Chronicles
by Sara Page
3.86 · 42 ratings
polyamory · steamy · adult · sci-fi · aliens · fiction · paranormal · romance · book · reverse-harem · space-opera · poc-mc · action-adventure · space · military · fated-mates · royalty · first-contact · violent-conflict · space-fleet
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Fated Mates of the Xilan Warriors
by Ava Ross
4.27 · 33 ratings
violent-conflict · adult · first-contact · galactic-empire · sci-fi · paranormal · aliens · fiction · colonization · humor · book · invasion · romance · fated-mates · futuristic · multi-pov · action-adventure · drama
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Red Planet Dragons of Tajss
by Miranda Martin
4.22 · 280 ratings
fiction · adult · book · romance · paranormal · aliens · sci-fi · first-contact · dragons · action-adventure · violent-conflict · invasion · humor · steamy · genetic-engineering · female-mc · galactic-empire · new-adult · fantasy · colonization
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Warriors of Karal
by Harmony Raines
4.18 · 38 ratings
violent-conflict · adult · contemporary · first-contact · space-travel · galactic-empire · sci-fi · paranormal · action-adventure · aliens · exploration · colonization · fiction · book · steamy · invasion · romance · genetic-engineering · dystopia · warriors
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Aurora Renegades
by G.S. Jennsen
4.46 · 28 ratings
action-adventure · aliens · exploration · fiction · military · first-contact · violent-conflict · space-fleet · adult · soldiers · sci-fi · space-travel · space-opera · colonization · invasion · book · audiobook · space · cyberpunk · utopia
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Mating Wars
by Aya Morningstar
3.90 · 41 ratings
genetic-engineering · adult · paranormal · aliens · fiction · book · romance · shapeshifters · forbidden-love · first-contact · violent-conflict · sci-fi · galactic-empire · action-adventure · invasion · dystopia · humor · steamy · fantasy · futuristic
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Warrior Clans of Maekon
by Jude Gray
4.06 · 18 ratings
female-mc · aliens · fiction · romance · book · first-contact · steamy · adult · paranormal · sci-fi · space-travel · action-adventure · invasion · kidnapping · violent-conflict · alpha-mc · dark · galactic-empire · psychics · barbarians
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Fated Star Mates
by Kyla Quinn
3.93 · 28 ratings
genetic-engineering · adult · violent-conflict · first-contact · galactic-empire · sci-fi · humor · aliens · fiction · book · invasion · romance · paranormal · barbarians · alpha-mc · futuristic · female-mc · steamy · space · 21st-century
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Galactic Pirate Brides
by Tamsin Ley
4.16 · 27 ratings
sci-fi · adult · aliens · fiction · action-adventure · paranormal · first-contact · futuristic · female-mc · outlaws · genetic-engineering · book · romance · violent-conflict · suspense · alpha-mc · invasion · military · galactic-empire · steamy
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The Guards Of Attala
by Mira Maxwell
4.00 · 15 ratings
aliens · fiction · sci-fi · genetic-engineering · adult · book · exploration · space-travel · paranormal · galactic-empire · first-contact · violent-conflict · invasion · romance · colonization · futuristic · steamy · action-adventure
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The Vissigroths of Leander
by Bella Blair
4.53 · 17 ratings
romance · aliens · fiction · adult · sci-fi · book · invasion · violent-conflict · galactic-empire · female-author · first-contact · colonization · fated-mates · space · steamy
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Colony: Holiday
by Demelza Carlton
4.08 · 13 ratings
colonization · aliens · fiction · super-powered · invasion · book · first-contact · adult · violent-conflict · paranormal · sci-fi · poc-mc · romance · holidays · supernatural · humor · urban · urban-fantasy · industrial-era · western
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Talonian Warriors
by Celeste Raye
4.19 · 16 ratings
aliens · fiction · colonization · invasion · genetic-engineering · adult · cyberpunk · military · space-fleet · first-contact · violent-conflict · galactic-empire · soldiers · book · paranormal · action-adventure · shapeshifters · romance · sci-fi · space
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Kall Alien Warriors
by Sue Lyndon
4.17 · 12 ratings
paranormal · steamy · romance · sci-fi · adult · aliens · fiction · book · first-contact · enemies-to-lovers · arranged-marriage · galactic-empire · dystopia · invasion · post-apocalyptic · insta-love · space-opera · dark · violent-conflict · secrets
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Renascence Alliance
by Alma Nilsson
3.95 · 22 ratings
adult · book · fiction · aliens · galactic-empire · paranormal · sci-fi · violent-conflict · first-contact · romance · invasion · space · audiobook · psychics · dystopia · supernatural · space-opera · space-fleet · military · lgbtq
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Perinqual Galaxy Hybrids
by C.Y. Croc
4.25 · 12 ratings
aliens · fiction · sci-fi · adult · romance · fantasy · action-adventure · super-powered · first-contact · anthologies · female-mc · space-travel · violent-conflict · book · invasion · colonization · galactic-empire · animals · humor · poc-mc
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Galactic Vikings
by Lucee Joie
4.16 · 19 ratings
book · invasion · aliens · fiction · humor · galactic-empire · sci-fi · adult · violent-conflict · first-contact · post-apocalyptic · romance · futuristic · space · paranormal · scandinavia · europe · medieval · box-set · historical
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Galactic Alpha's Conquest
by Stella Cassy
3.92 · 13 ratings
sci-fi · adult · aliens · fiction · paranormal · shapeshifters · book · space-travel · space-fleet · violent-conflict · first-contact · military · poc-mc · galactic-empire · invasion · space · romance · dragons · fantasy · abuse
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Untamed Warriors of Vanthae
by Ivy Cross
3.75 · 4 ratings
romance · invasion · adult · violent-conflict · first-contact · galactic-empire · space-travel · sci-fi · dark · aliens · fiction · fantasy · female-mc · book · captivity
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