Galactic Kings
by Anna Hackett
4.35 · 62 ratings
aliens · fiction · action-adventure · sci-fi · adult · book · paranormal · genetic-engineering · first-contact · romance · galactic-empire · female-mc · space-opera · shapeshifters · steamy · enemies-to-lovers · alpha-mc · animals · monsters · fated-mates
Galactic Kings: Similar 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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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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Eon Warriors
by Anna Hackett
4.39 · 180 ratings
action-adventure · aliens · fiction · adult · military · soldiers · sci-fi · steamy · romance · audiobook · female-mc · space-fleet · book · space · galactic-empire · paranormal · fated-mates · alpha-mc · war · violent-conflict
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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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Galactic Kings
by Anna Hackett
4.35 · 62 ratings
aliens · fiction · action-adventure · sci-fi · adult · book · paranormal · genetic-engineering · first-contact · romance · galactic-empire · female-mc · space-opera · shapeshifters · steamy · enemies-to-lovers · alpha-mc · animals · monsters · fated-mates
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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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Dark World Mates
by Olivia Riley
3.97 · 60 ratings
aliens · fiction · adult · sci-fi · book · romance · action-adventure · female-mc · violent-conflict · first-contact · invasion · alpha-mc · slow-burn · military · space · suspense · paranormal · prison · monsters · space-opera
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Sarazen Saga
by Isabel Wroth
4.15 · 52 ratings
aliens · fiction · paranormal · romance · book · shapeshifters · sci-fi · adult · fated-mates · contemporary · alpha-mc · invasion · first-contact · violent-conflict · space · steamy · kind-mc · insta-love · space-opera · children
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Star
by Susan Grant
3.97 · 69 ratings
romance · paranormal · aliens · fiction · sci-fi · adult · futuristic · book · action-adventure · steamy · galactic-empire · female-mc · space-opera · invasion · space · violent-conflict · first-contact · royalty · time-travel · anthologies
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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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Xian Warriors
by Regine Abel
4.30 · 92 ratings
military · adult · soldiers · sci-fi · aliens · fiction · action-adventure · genetic-engineering · paranormal · romance · humor · book · first-contact · female-mc · contemporary · alpha-mc · shapeshifters · new-adult · poc-mc · dragons
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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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Space Gypsy Chronicles
by Eve Langlais
3.76 · 30 ratings
romance · book · paranormal · audiobook · futuristic · aliens · exploration · fiction · humor · action-adventure · sci-fi · space-opera · space-travel · first-contact · adult · steamy · galactic-empire · cyberpunk · space · genetic-engineering
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Mating Wars
by Aya Morningstar
3.90 · 41 ratings
fiction · aliens · book · genetic-engineering · adult · paranormal · romance · shapeshifters · galactic-empire · action-adventure · invasion · forbidden-love · first-contact · violent-conflict · sci-fi · humor · steamy · dystopia · fantasy · futuristic
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Rakian Warrior Mates
by Elin Wyn
4.27 · 26 ratings
paranormal · sci-fi · adult · shapeshifters · book · fiction · aliens · female-mc · first-contact · genetic-engineering · romance · action-adventure · alpha-mc · steamy · mystery · space-opera · new-adult · dystopia · futuristic · fated-mates
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Project: Adapt
by Jade Waltz
4.14 · 29 ratings
adult · polyamory · space-opera · sci-fi · aliens · fiction · royalty · book · reverse-harem · romance · fated-mates · genetic-engineering · paranormal · poc-mc · female-mc · action-adventure · colonization · first-contact · assassins · epic
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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 · 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
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Angel 6.0
by Travis Luedke
3.84 · 25 ratings
sci-fi · steamy · book · romance · space · paranormal · aliens · fiction · futuristic · adult · space-opera · dark · cyberpunk · genetic-engineering · galactic-empire · kidnapping · captivity · alpha-mc · audiobook · action-adventure
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Intergalactic Alliance
by Bella Blair
4.33 · 55 ratings
book · romance · invasion · aliens · fiction · sci-fi · adult · violent-conflict · first-contact · galactic-empire · enemies-to-lovers · action-adventure · steamy · colonization · fated-mates · insta-love · paranormal · alpha-mc · shapeshifters · mermaids
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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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Fated Mates of the Varool
by Krista Luna
4.28 · 32 ratings
aliens · fiction · adult · humor · sci-fi · action-adventure · romance · violent-conflict · invasion · fated-mates · space-travel · space-opera · genetic-engineering · paranormal · female-mc · military · soldiers · book · fantasy · comics
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Genmate Dilemma
by Cara Bristol
4.50 · 6 ratings
life-death · space-travel · sci-fi · adult · violent-conflict · first-contact · secrets · fated-mates · aliens · fiction · action-adventure · psychics · enemies-to-lovers · paranormal · suspense · genetic-engineering · contemporary · shapeshifters · book · steamy
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