Ruth & Gron
by V.C. Lancaster
3.85 · 87 ratings
adult · romance · steamy · paranormal · aliens · fiction · sci-fi · invasion · book · reverse-harem · alpha-mc · monsters · polyamory · first-contact · violent-conflict · space · forced-proximity · action-adventure · barbarians · kind-mc
Ruth & Gron: 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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Stolen by an Alien
by Amanda Milo
4.08 · 179 ratings
aliens · humor · sci-fi · steamy · fiction · adult · book · romance · paranormal · violent-conflict · first-contact · invasion · audiobook · space · alpha-mc · action-adventure · dark · kind-mc · kidnapping · friends-to-lovers
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Galactic Gladiators
by Anna Hackett
4.32 · 306 ratings
adult · sci-fi · aliens · fiction · romance · book · invasion · violent-conflict · military · first-contact · warriors · audiobook · paranormal · steamy · action-adventure · alpha-mc · space · suspense · female-mc · supernatural
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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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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
female-mc · aliens · fiction · action-adventure · first-contact · adult · sci-fi · romance · book · steamy · paranormal · dark · kidnapping · alpha-mc · galactic-empire · poc-mc · humor · slow-burn · violent-conflict · invasion
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The Alliance
by S.E. Smith
4.12 · 120 ratings
aliens · fiction · romance · book · sci-fi · adult · paranormal · audiobook · post-apocalyptic · military · futuristic · action-adventure · dystopia · first-contact · violent-conflict · contemporary · invasion · space · steamy · space-travel
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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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Ruth & Gron
by V.C. Lancaster
3.85 · 87 ratings
adult · romance · steamy · paranormal · aliens · fiction · sci-fi · invasion · book · reverse-harem · alpha-mc · monsters · polyamory · first-contact · violent-conflict · space · forced-proximity · action-adventure · barbarians · kind-mc
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Hearts of Stone
by Miranda Bridges
4.17 · 72 ratings
adult · dark · sci-fi · action-adventure · aliens · fiction · contemporary · paranormal · kidnapping · book · steamy · romance · violent-conflict · alpha-mc · first-contact · new-adult · female-mc · war · audiobook · royalty
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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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Alien Enslaved
by Kaitlyn O'Connor
3.60 · 56 ratings
dark · sci-fi · book · steamy · romance · alpha-mc · paranormal · aliens · fiction · adult · barbarians · reverse-harem · kidnapping · space · contemporary · futuristic · slavery · polyamory · supernatural · warriors
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Accidental Alien Brides
by January Bell
4.22 · 64 ratings
romance · sci-fi · adult · aliens · fiction · action-adventure · paranormal · steamy · book · first-contact · military · fated-mates · humor · arranged-marriage · invasion · space-fleet · violent-conflict · forced-proximity · dark · monsters
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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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Chosen
by Stacy Jones
4.19 · 68 ratings
sci-fi · book · romance · paranormal · aliens · fiction · adult · reverse-harem · shapeshifters · steamy · monsters · polyamory · new-adult · harem · space · kind-mc · contemporary · action-adventure · female-mc · male-mc
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Azziarin
by Hannah Davenport
4.00 · 72 ratings
paranormal · invasion · romance · violent-conflict · adult · sci-fi · action-adventure · aliens · fiction · steamy · book · first-contact · warriors · space · alpha-mc · fated-mates · futuristic · kidnapping · amnesia · military
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The Ravager Chronicles
by Sara Page
3.86 · 42 ratings
paranormal · reverse-harem · book · steamy · romance · adult · polyamory · aliens · fiction · sci-fi · space · space-opera · action-adventure · poc-mc · royalty · military · fated-mates · survival · alpha-mc · galactic-empire
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Starfighter Training Academy
by Grace Goodwin
4.22 · 41 ratings
book · romance · paranormal · genetic-engineering · audiobook · action-adventure · fiction · sci-fi · adult · military · steamy · invasion · colonization · war · aliens · violent-conflict · space-fleet · first-contact · suspense · space
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Eok Warriors
by Mary Auclair
4.20 · 36 ratings
action-adventure · fiction · sci-fi · adult · romance · book · aliens · first-contact · paranormal · alpha-mc · female-mc · violent-conflict · invasion · steamy · suspense · futuristic · outlaws · new-adult · vampires · space
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Brides of the Aashi
by Belle Harper
3.86 · 28 ratings
sci-fi · violent-conflict · adult · polyamory · first-contact · book · reverse-harem · invasion · romance · action-adventure · humor · aliens · female-mc · fiction · new-adult · paranormal · steamy · fantasy · harem · male-mc
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Renegade Cyborgs
by Jude Gray
4.04 · 24 ratings
book · invasion · romance · galactic-empire · cyborgs · aliens · fiction · female-mc · space-travel · sci-fi · violent-conflict · adult · first-contact · abuse · alpha-mc · slavery · reverse-harem · kind-mc · paranormal · forbidden-love
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Interstellar Protections Agency
by Jade Waltz
3.61 · 18 ratings
adult · aliens · fiction · paranormal · book · romance · sci-fi · violent-conflict · first-contact · monsters · action-adventure · humor · space · alpha-mc · steamy · invasion · space-travel · dark · new-adult · futuristic
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Brides of the Zuldrux Warriors
by Ava Ross
4.27 · 30 ratings
barbarians · colonization · steamy · book · romance · space · paranormal · fantasy · aliens · fiction · monsters · fated-mates · adult · female-author · sci-fi · urban-fantasy · warriors · humor · kind-mc · invasion
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Venora Mates
by Octavia Kore
3.95 · 21 ratings
fiction · adult · book · humor · action-adventure · aliens · monsters · lgbtq · violent-conflict · polyamory · horror · dark · sci-fi · colonization · supernatural · reverse-harem · invasion · romance · genetic-engineering · paranormal
All books in this series ❯