The Complex
by Demelza Carlton
4.00 · 12 ratings
adult · paranormal · aliens · fiction · book · romance · sci-fi · fantasy · supernatural · futuristic · post-apocalyptic · violent-conflict · first-contact · new-adult · colonization · shapeshifters · invasion · mermaids · audiobook · contemporary
The Complex: Similar series
The Second Dark Ages
by Michael Anderle
4.53 · 88 ratings
adult · sci-fi · action-adventure · fiction · genetic-engineering · paranormal · post-apocalyptic · book · violent-conflict · aliens · apocalyptic · dystopia · vampires · urban-fantasy · shapeshifters · military · audiobook · first-contact · space · suspense
All books in this series ❯
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
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
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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
sci-fi · adult · fated-mates · aliens · fiction · paranormal · book · shapeshifters · romance · violent-conflict · first-contact · alpha-mc · contemporary · invasion · space · steamy · space-opera · insta-love · children · monsters
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The Ujal
by Erin Tate
4.04 · 92 ratings
romance · shapeshifters · steamy · paranormal · aliens · fiction · adult · book · sci-fi · space-travel · invasion · galactic-empire · exploration · humor · mermaids · first-contact · violent-conflict · colonization · insta-love · supernatural
All books in this series ❯
Kiss Series
by M.K. Eidem
4.11 · 38 ratings
aliens · fiction · adult · shapeshifters · romance · dragons · paranormal · fated-mates · age-gap · book · steamy · alpha-mc · audiobook · fantasy · sci-fi · violent-conflict · first-contact · invasion · royalty · supernatural
All books in this series ❯
Compatibles
by Hannah Davenport
3.99 · 28 ratings
paranormal · invasion · romance · book · steamy · first-contact · violent-conflict · adult · new-adult · sci-fi · aliens · fiction · alpha-mc · space · supernatural · psychics · futuristic · fighter · multi-pov · cheating
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Shamans & Shifters Space Opera
by Jenny Schwartz
4.33 · 46 ratings
romance · shapeshifters · book · paranormal · space · aliens · fiction · action-adventure · sci-fi · space-travel · space-opera · first-contact · adult · futuristic · outlaws · space-fleet · magic · fae · colonization · galactic-empire
All books in this series ❯
Chosen by the Karal
by Harmony Raines
3.90 · 50 ratings
space-travel · sci-fi · adult · violent-conflict · first-contact · aliens · exploration · fiction · galactic-empire · paranormal · genetic-engineering · book · invasion · romance · colonization · futuristic · dystopia · contemporary · steamy · space
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Warriors of Karal
by Harmony Raines
4.18 · 38 ratings
steamy · book · invasion · fiction · aliens · exploration · action-adventure · romance · colonization · galactic-empire · space-travel · paranormal · sci-fi · adult · first-contact · violent-conflict · contemporary · other-world · warriors · dystopia
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Veredian Chronicles
by Regine Abel
4.35 · 64 ratings
fiction · sci-fi · adult · paranormal · romance · book · action-adventure · aliens · humor · new-adult · soldiers · military · genetic-engineering · steamy · colonization · futuristic · invasion · reverse-harem · female-author · first-contact
All books in this series ❯
Tail and Claw
by Nancey Cummings
4.06 · 28 ratings
book · adult · romance · aliens · fiction · contemporary · audiobook · invasion · violent-conflict · first-contact · sci-fi · action-adventure · paranormal · colonization · humor · arranged-marriage · supernatural · steamy · fantasy · dystopia
All books in this series ❯
Alien Quarantine Rescue
by Robin Lovett
3.62 · 21 ratings
steamy · book · post-apocalyptic · romance · alpha-mc · humor · aliens · fiction · apocalyptic · futuristic · fated-mates · adult · first-contact · sci-fi · invasion · space · dystopia · paranormal · womens-fiction · violent-conflict
All books in this series ❯
The Slave Girl Chronicles
by J.C. Andrijeski
3.82 · 21 ratings
colonization · poc-mc · supernatural · paranormal · sci-fi · dystopia · violent-conflict · first-contact · book · invasion · post-apocalyptic · aliens · fiction · young-adult · new-adult · alpha-mc · futuristic · warriors · action-adventure · romance
All books in this series ❯
Venora Mates
by Octavia Kore
3.95 · 21 ratings
fiction · adult · book · paranormal · action-adventure · humor · aliens · monsters · lgbtq · violent-conflict · polyamory · horror · dark · sci-fi · colonization · supernatural · reverse-harem · invasion · romance · genetic-engineering
All books in this series ❯
Vaxxlian Alien Mail Order Brides
by Sue Mercury
4.36 · 42 ratings
multi-pov · futuristic · aliens · fiction · sci-fi · adult · romance · paranormal · first-contact · book · violent-conflict · invasion · fantasy · sci-fi-earth · collection · action-adventure · shapeshifters · arranged-marriage · box-set · contemporary
All books in this series ❯
Wickedest Witch
by Meg Xuemei X
4.04 · 26 ratings
book · romance · vampires · paranormal · fiction · adult · shapeshifters · angels · suspense · gothic · steamy · post-apocalyptic · supernatural · audiobook · action-adventure · witches-wizards · demons · sci-fi · time-travel · alpha-mc
All books in this series ❯
Unexpected
by Layla Stone
4.06 · 18 ratings
romance · book · paranormal · futuristic · aliens · fiction · sci-fi · adult · invasion · colonization · action-adventure · space-opera · first-contact · violent-conflict · kidnapping · steamy · abuse · galactic-empire · genetic-engineering · poc-mc
All books in this series ❯
Levekk Invaders
by Lea Linnett
3.83 · 18 ratings
sci-fi · violent-conflict · adult · fiction · aliens · paranormal · galactic-empire · dystopia · invasion · book · colonization · romance · slow-burn · futuristic · action-adventure · audiobook · post-apocalyptic · grumpy-mc · apocalyptic · forbidden-love
All books in this series ❯
Braving Darkness
by Scarlett Grove
4.00 · 24 ratings
aliens · fiction · witches-wizards · psychics · adult · vampires · shapeshifters · supernatural · book · romance · cyberpunk · genetic-engineering · paranormal · violent-conflict · invasion · dragons · fantasy · futuristic · urban-fantasy · steamy
All books in this series ❯
Talonian Warriors
by Celeste Raye
4.19 · 16 ratings
aliens · fiction · colonization · invasion · genetic-engineering · adult · cyberpunk · military · space-fleet · first-contact · violent-conflict · galactic-empire · soldiers · book · paranormal · action-adventure · shapeshifters · romance · sci-fi · space
All books in this series ❯
The Complex
by Demelza Carlton
4.00 · 12 ratings
adult · paranormal · aliens · fiction · book · romance · sci-fi · fantasy · supernatural · futuristic · post-apocalyptic · violent-conflict · first-contact · new-adult · colonization · shapeshifters · invasion · mermaids · audiobook · contemporary
All books in this series ❯
Blue Planet Warriors
by Maia Starr
3.93 · 14 ratings
aliens · fiction · adult · sci-fi · exploration · action-adventure · futuristic · space-fleet · violent-conflict · first-contact · military · space-travel · soldiers · colonization · book · invasion · romance · genetic-engineering · galactic-empire · paranormal
All books in this series ❯