Haalux Empire
by Hattie Jacks
4.37 · 35 ratings
aliens · fiction · invasion · romance · first-contact · violent-conflict · adult · sci-fi · galactic-empire · poc-mc · action-adventure · fantasy · book · steamy · female-mc · futuristic · technothriller · time-travel · anthologies · paranormal
Haalux Empire: Similar series
House of Kaimar
by Miranda Bridges
4.13 · 112 ratings
aliens · fiction · action-adventure · female-mc · adult · violent-conflict · first-contact · dark · sci-fi · kidnapping · book · romance · contemporary · paranormal · steamy · invasion · alpha-mc · killer · fated-mates · insta-love
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Cosmos' Gateway
by S.E. Smith
4.17 · 138 ratings
aliens · fiction · sci-fi · romance · audiobook · contemporary · alpha-mc · futuristic · action-adventure · soldiers · military · first-contact · violent-conflict · space-fleet · adult · invasion · book · paranormal · alternate-history · steamy
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Prime Mating Agency
by Regine Abel
4.17 · 256 ratings
aliens · monsters · first-contact · sci-fi · paranormal · fiction · adult · colonization · book · romance · humor · violent-conflict · invasion · poc-mc · fated-mates · arranged-marriage · marriage-of-convenience · alpha-mc · futuristic · steamy
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Captured by Aliens
by A.G. Wilde
4.03 · 77 ratings
paranormal · action-adventure · aliens · fiction · female-mc · adult · first-contact · sci-fi · book · steamy · romance · dark · kidnapping · alpha-mc · galactic-empire · humor · poc-mc · slow-burn · violent-conflict · invasion
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Riv’s Sanctuary
by A.G. Wilde
4.12 · 44 ratings
dark · sci-fi · adult · futuristic · poc-mc · female-mc · fiction · aliens · action-adventure · humor · paranormal · alpha-mc · space · romance · kidnapping · book · first-contact · violent-conflict · galactic-empire · audiobook
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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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Fire Planet Warriors
by Calista Skye
4.03 · 36 ratings
aliens · exploration · fiction · paranormal · invasion · romance · book · sci-fi · space-travel · first-contact · violent-conflict · adult · poc-mc · action-adventure · steamy · soldiers · military · humor · survival · warriors
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Star
by Susan Grant
3.97 · 69 ratings
paranormal · romance · adult · sci-fi · aliens · fiction · futuristic · book · action-adventure · galactic-empire · steamy · space-opera · female-mc · space · invasion · first-contact · violent-conflict · royalty · contemporary · anthologies
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Intergalactic Exchange Program
by Roxie Ray
4.22 · 76 ratings
book · paranormal · aliens · fiction · adult · sci-fi · action-adventure · female-mc · steamy · invasion · violent-conflict · romance · audiobook · first-contact · poc-mc · new-adult · dystopia · futuristic · royalty · post-apocalyptic
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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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Lunarian Warriors
by Roxie Ray
4.21 · 56 ratings
book · romance · paranormal · audiobook · fiction · aliens · action-adventure · female-mc · sci-fi · adult · steamy · invasion · poc-mc · violent-conflict · first-contact · multi-pov · shapeshifters · suspense · alpha-mc · 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
action-adventure · paranormal · sci-fi · galactic-empire · space-travel · first-contact · contemporary · adult · violent-conflict · invasion · romance · steamy · book · colonization · aliens · exploration · fiction · warriors · dystopia · genetic-engineering
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Vostra Crime Lords
by Luna Voss
4.07 · 30 ratings
adult · steamy · paranormal · sci-fi · aliens · fiction · omegaverse · book · organized-crime · violent-conflict · galactic-empire · action-adventure · female-mc · supernatural · crime · gothic · fated-mates · invasion · space · romance
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Warriors of the Drexian Academy
by Tana Stone
4.55 · 22 ratings
sci-fi · aliens · action-adventure · galactic-empire · violent-conflict · adult · romance · invasion · book · female-mc · fantasy · humor · fiction · new-adult · enemies-to-lovers · forced-proximity · age-gap · steamy · epic · paranormal
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Brides of the Aashi
by Belle Harper
3.86 · 28 ratings
humor · action-adventure · aliens · fiction · female-mc · romance · adult · invasion · violent-conflict · book · reverse-harem · sci-fi · polyamory · first-contact · paranormal · steamy · fantasy · new-adult · monsters · harem
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Warrior Clans of Maekon
by Jude Gray
4.06 · 18 ratings
female-mc · aliens · fiction · romance · book · steamy · first-contact · adult · paranormal · sci-fi · action-adventure · invasion · kidnapping · violent-conflict · alpha-mc · dark · space-travel · galactic-empire · psychics · barbarians
All books in this series ❯
Haalux Empire
by Hattie Jacks
4.37 · 35 ratings
aliens · fiction · invasion · romance · first-contact · violent-conflict · adult · sci-fi · galactic-empire · poc-mc · action-adventure · fantasy · book · steamy · female-mc · futuristic · technothriller · time-travel · anthologies · paranormal
All books in this series ❯
The Sky Clan of the Taori
by Tana Stone
4.30 · 23 ratings
action-adventure · aliens · fiction · female-mc · book · adult · humor · invasion · violent-conflict · first-contact · fantasy · revenge · steamy · romance · military · sci-fi · dark · warriors · kidnapping · paranormal
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Galactic Pirate Brides
by Tamsin Ley
4.16 · 27 ratings
sci-fi · adult · action-adventure · aliens · fiction · paranormal · first-contact · futuristic · outlaws · female-mc · genetic-engineering · romance · book · violent-conflict · suspense · alpha-mc · invasion · military · galactic-empire · steamy
All books in this series ❯
Unexpected
by Layla Stone
4.06 · 18 ratings
book · romance · paranormal · futuristic · aliens · fiction · sci-fi · adult · invasion · colonization · action-adventure · space-opera · violent-conflict · first-contact · kidnapping · steamy · abuse · galactic-empire · genetic-engineering · poc-mc
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Warriors of the Lost Planet
by Ivy Sparks
4.19 · 16 ratings
sci-fi · adult · first-contact · fiction · aliens · romance · violent-conflict · action-adventure · fantasy · poc-mc · paranormal · book · invasion · female-mc · space-travel · fated-mates · warriors · exploration · humor · marriage-of-convenience
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Dazon Agenda
by Juno Wells
3.83 · 23 ratings
fiction · sci-fi · adult · romance · book · aliens · steamy · poc-mc · paranormal · genetic-engineering · military · first-contact · violent-conflict · invasion · action-adventure · contemporary · space-fleet · dark · new-adult · mystery
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Perinqual Galaxy Hybrids
by C.Y. Croc
4.25 · 12 ratings
romance · aliens · fiction · sci-fi · adult · action-adventure · fantasy · anthologies · super-powered · first-contact · book · invasion · colonization · galactic-empire · female-mc · space-travel · violent-conflict · military · captivity · horses
All books in this series ❯