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
Cosmos' Gateway: 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
All books in this series ❯
Dark Planet Warriors
by Anna Carven
4.12 · 285 ratings
paranormal · action-adventure · romance · book · steamy · sci-fi · adult · futuristic · aliens · fiction · alpha-mc · space · military · contemporary · space-opera · audiobook · supernatural · inter-galactic · female-mc · warriors
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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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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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Theirs Not to Reason Why
by Jean Johnson
4.07 · 88 ratings
invasion · time-travel · book · paranormal · space · futuristic · war · female-mc · aliens · action-adventure · fiction · soldiers · sci-fi · space-travel · space-opera · first-contact · military · magic · adult · violent-conflict
All books in this series ❯
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
All books in this series ❯
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
All books in this series ❯
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
All books in this series ❯
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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Claimings
by Lyn Gala
4.17 · 63 ratings
mlm · steamy · book · romance · audiobook · paranormal · aliens · fiction · lgbtq · age-gap · adult · sci-fi · space · friends-to-lovers · action-adventure · slow-burn · violent-conflict · military · angst · invasion
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Lords of the Var
by Michelle M. Pillow
4.09 · 74 ratings
paranormal · dragons · romance · shapeshifters · adult · aliens · fiction · action-adventure · audiobook · space · supernatural · urban-fantasy · royalty · book · steamy · sci-fi · space-opera · futuristic · alpha-mc · literary-fiction
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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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Mail-Order Brides of Crakair
by Ava Ross
4.19 · 82 ratings
action-adventure · humor · romance · book · sci-fi · adult · fiction · aliens · galactic-empire · audiobook · invasion · colonization · violent-conflict · dystopia · steamy · insta-love · first-contact · paranormal · new-adult · soldiers
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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
All books in this series ❯
OtherWorldly Men
by Susan Grant
3.85 · 26 ratings
space-opera · female-mc · aliens · fiction · humor · futuristic · action-adventure · romance · book · first-contact · adult · alpha-mc · paranormal · sci-fi · invasion · contemporary · space · violent-conflict · assassins · political-intrigue
All books in this series ❯
Brion Brides
by Vi Voxley
4.06 · 84 ratings
action-adventure · aliens · fiction · adult · military · sci-fi · book · romance · steamy · alpha-mc · futuristic · violent-conflict · contemporary · paranormal · warriors · first-contact · invasion · war · female-mc · fated-mates
All books in this series ❯
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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Warriors Of Sangrin
by Nancey Cummings
4.14 · 91 ratings
action-adventure · aliens · fiction · sci-fi · adult · romance · paranormal · military · first-contact · book · violent-conflict · invasion · fated-mates · futuristic · soldiers · space-fleet · genetic-engineering · alpha-mc · audiobook · super-powered
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Veredian Chronicles
by Regine Abel
4.35 · 64 ratings
fiction · adult · sci-fi · romance · book · paranormal · aliens · action-adventure · humor · military · new-adult · soldiers · steamy · genetic-engineering · colonization · futuristic · invasion · reverse-harem · psychics · female-author
All books in this series ❯
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
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Katieran Prime
by K.D. Jones
4.01 · 102 ratings
book · adult · aliens · fiction · sci-fi · invasion · violent-conflict · action-adventure · military · first-contact · paranormal · soldiers · space-fleet · inter-galactic · female-mc · humor · romance · futuristic · steamy · other-world
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Alpha Alien
by Flora Dare
3.37 · 19 ratings
fiction · romance · steamy · sci-fi · adult · aliens · paranormal · contemporary · inter-galactic · book · space · humor · galactic-empire · exploration · genetic-engineering · invasion · colonization · soldiers · space-travel · first-contact
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Fated Mates of the Varool
by Krista Luna
4.28 · 32 ratings
fiction · aliens · 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
All books in this series ❯