Fallen Earth
by J.J. Lore
4.00 · 1 ratings
fiction · sci-fi · military · adult · alpha-mc · violent-conflict · captivity · romance · slow-burn · reverse-harem · time-travel · book · kidnapping · aliens · action-adventure
Fallen Earth: 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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Corsairs
by Ruby Dixon
4.04 · 140 ratings
dark · sci-fi · adult · fated-mates · outlaws · aliens · fiction · paranormal · multi-pov · space · alpha-mc · romance · kidnapping · book · steamy · slavery · action-adventure · humor · audiobook · friends-to-lovers
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Horde Kings of Dakkar
by Zoey Draven
4.12 · 161 ratings
fated-mates · aliens · fiction · new-adult · adult · romance · book · steamy · paranormal · enemies-to-lovers · alpha-mc · dystopia · slow-burn · forced-proximity · action-adventure · barbarians · audiobook · drama · female-mc · dark
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The Firebird Chronicles
by T.A. White
4.52 · 112 ratings
fiction · space-opera · sci-fi · urban-fantasy · book · paranormal · action-adventure · humor · aliens · female-mc · friendship · slow-burn · futuristic · magic · military · romance · space · alpha-mc · dystopia · adult
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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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Zion Warriors
by S.E. Smith
4.21 · 51 ratings
steamy · book · romance · sci-fi · adult · futuristic · aliens · fiction · paranormal · alpha-mc · cyborgs · audiobook · time-travel · insta-love · military · action-adventure · humor · warriors · poc-mc · female-mc
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Imperial
by M.K. Eidem
4.32 · 63 ratings
adult · space-opera · sci-fi · aliens · fiction · alpha-mc · audiobook · paranormal · book · other-world · romance · violent-conflict · military · action-adventure · war · futuristic · space · steamy · space-travel · humor
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Alien Lord's Captive Serial
by Mina Carter
3.92 · 63 ratings
book · steamy · military · adult · dark · sci-fi · aliens · fiction · warriors · action-adventure · futuristic · space · alpha-mc · paranormal · romance · kidnapping · violent-conflict · female-mc · inter-galactic · royalty
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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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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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Time Hunters
by Angela Knight
3.95 · 65 ratings
paranormal · steamy · time-travel · romance · urban-fantasy · adult · fiction · cyborgs · ghosts · supernatural · futuristic · alpha-mc · contemporary · book · shapeshifters · sci-fi · aliens · fantasy · angels · suspense
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Claimings
by Lyn Gala
4.17 · 63 ratings
aliens · fiction · age-gap · lgbtq · adult · sci-fi · mlm · romance · steamy · book · audiobook · paranormal · action-adventure · slow-burn · military · violent-conflict · space · friends-to-lovers · futuristic · female-author
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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 Warrior
by Penelope Fletcher
4.00 · 46 ratings
space · paranormal · book · steamy · romance · adult · dark · sci-fi · aliens · fiction · suspense · abuse · harem · kidnapping · reverse-harem · polyamory · warriors · futuristic · alpha-mc · enemies-to-lovers
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Gaven
by J.C. Owens
3.83 · 46 ratings
supernatural · mlm · romance · book · paranormal · action-adventure · fiction · fantasy · lgbtq · adult · historical · magic · angst · vampires · royalty · steamy · shapeshifters · alpha-mc · enemies-to-lovers · age-gap
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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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Alien Overlords
by Taylor Vaughn
4.12 · 66 ratings
paranormal · book · romance · sci-fi · adult · aliens · fiction · poc-mc · alpha-mc · kidnapping · steamy · dark · military · black-mc · futuristic · audiobook · captivity · abuse · violent-conflict · sexual-assault
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Roh'ilian Warrior
by Luna Kingsley
3.97 · 51 ratings
female-mc · aliens · fiction · action-adventure · first-contact · military · historical · adult · violent-conflict · sci-fi · invasion · romance · book · paranormal · dark · new-adult · kind-mc · kidnapping · abuse · alpha-mc
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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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Xian Warriors
by Regine Abel
4.30 · 92 ratings
adult · military · soldiers · sci-fi · action-adventure · aliens · fiction · genetic-engineering · paranormal · romance · humor · first-contact · female-mc · alpha-mc · contemporary · book · shapeshifters · new-adult · poc-mc · dragons
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Taken
by Stacy Jones
4.18 · 34 ratings
adult · polyamory · sci-fi · aliens · fiction · paranormal · book · steamy · reverse-harem · romance · action-adventure · female-mc · alpha-mc · space · military · warriors · multi-pov · dragons · shapeshifters · dark
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The Ladyships
by Bex McLynn
4.25 · 24 ratings
paranormal · book · adult · sci-fi · fiction · romance · space-fleet · military · aliens · action-adventure · humor · futuristic · alpha-mc · steamy · kidnapping · invasion · violent-conflict · female-author · first-contact · dark
All books in this series ❯