Unit 51
by Michael McBride
3.89 · 28 ratings
supernatural · book · audiobook · paranormal · suspense · aliens · archaeology · action-adventure · fiction · mystery · monsters · adult · horror · sci-fi · psychological · invasion · first-contact · dark · immortality · romantic-love
Unit 51: Similar series
The 5th Wave
by Rick Yancey
3.83 · 207 ratings
sci-fi · aliens · fiction · action-adventure · dystopia · audiobook · multi-pov · book · post-apocalyptic · young-adult · horror · violent-conflict · war · apocalyptic · futuristic · mystery · paranormal · suspense · survival · contemporary
All books in this series ❯
Southern Reach
by Jeff VanderMeer
3.64 · 193 ratings
adult · fiction · dystopia · book · sci-fi · horror · outdoors · literary-fiction · dark · male-author · action-adventure · apocalyptic · mystery · aliens · suspense · paranormal · audiobook · contemporary · 21st-century · cosmic-horror
All books in this series ❯
Gideon Crew
by Douglas Preston
3.77 · 156 ratings
book · suspense · audiobook · crime · action-adventure · mystery · fiction · thriller · horror · technothriller · contemporary · adult · historical-fiction · political-intrigue · law-enforcement · supernatural · conspiracies · paranormal · killer · myths
All books in this series ❯
Wayward Pines
by Blake Crouch
2.70 · 184 ratings
suspense · fiction · adult · book · psychological · dystopia · audiobook · action-adventure · mystery · crime · drama · apocalyptic · futuristic · male-author · horror · dark · time-travel · post-apocalyptic · survival · contemporary
All books in this series ❯
The Kurtherian Gambit
by Michael Anderle
4.48 · 585 ratings
aliens · fiction · vampires · urban-fantasy · paranormal · action-adventure · violent-conflict · shapeshifters · genetic-engineering · space · galactic-empire · military · space-opera · book · audiobook · war · sci-fi · suspense · invasion · first-contact
All books in this series ❯
Threshold
by Peter Clines
3.82 · 98 ratings
paranormal · cosmic-horror · audiobook · book · sci-fi · adult · horror · apocalyptic · action-adventure · mystery · aliens · fiction · contemporary · dystopia · supernatural · urban-fantasy · monsters · suspense · survival · 21st-century
All books in this series ❯
Firefall
by Peter Watts
3.91 · 96 ratings
21st-century · book · adult · first-contact · horror · sci-fi · aliens · fiction · hard-sci-fi · space · cyberpunk · audiobook · dystopia · space-opera · action-adventure · mystery · cosmic-horror · ai · transhumanism · philosophy
All books in this series ❯
Infected
by Scott Sigler
4.00 · 68 ratings
horror · sci-fi · epidemy · action-adventure · aliens · fiction · mystery · apocalyptic · monsters · audiobook · dystopia · suspense · zombies · paranormal · supernatural · medical · invasion · post-apocalyptic · book · military
All books in this series ❯
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
All books in this 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 ❯
Yesterday's Gone
by Sean Platt
3.95 · 87 ratings
aliens · fiction · box-set · action-adventure · apocalyptic · post-apocalyptic · invasion · adult · dystopia · horror · audiobook · zombies · sci-fi · book · mystery · monsters · suspense · supernatural · violent-conflict · colonization
All books in this series ❯
Origins
by Jeremy Robinson
3.91 · 80 ratings
action-adventure · audiobook · book · adult · fiction · paranormal · mystery · supernatural · horror · suspense · thriller · monsters · spirituality · invasion · sci-fi · christian · historical-fiction · historical · violent-conflict · aliens
All books in this series ❯
Nemesis Saga
by Jeremy Robinson
4.09 · 93 ratings
adult · horror · monsters · action-adventure · fiction · myths · audiobook · book · sci-fi · military · paranormal · violent-conflict · disaster · mystery · genetic-engineering · urban-fantasy · aliens · suspense · technothriller · retellings
All books in this series ❯
Awakened
by James S. Murray
3.67 · 46 ratings
book · crime · monsters · fiction · humor · supernatural · political-intrigue · comedy · paranormal · suspense · conspiracies · sci-fi · adult · horror · audiobook · action-adventure · mystery · urban · evolution · contemporary
All books in this series ❯
The Comet Cycle
by Benjamin Percy
3.72 · 72 ratings
post-apocalyptic · violent-conflict · invasion · literary-fiction · book · supernatural · aliens · fiction · action-adventure · mystery · conspiracies · paranormal · political-intrigue · super-powered · suspense · first-contact · sci-fi · adult · dystopia · magical-realism
All books in this series ❯
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
All books in this series ❯
World's Scariest Legends
by Jeremy Bates
3.88 · 58 ratings
horror · suspense · book · action-adventure · fiction · paranormal · supernatural · adult · sci-fi · mystery · literary · classics · monsters · audiobook · young-adult · psychological · thriller · law-enforcement · retellings · spooky
All books in this series ❯
Dire Earth Cycle
by Jason M. Hough
3.76 · 79 ratings
book · post-apocalyptic · sci-fi · adult · action-adventure · fiction · violent-conflict · military · apocalyptic · hard-sci-fi · aliens · zombies · audiobook · horror · space · dystopia · space-opera · first-contact · mystery · suspense
All books in this series ❯
David Hooper
by John Birmingham
3.80 · 65 ratings
urban-fantasy · fantasy · fiction · super-powered · adult · horror · supernatural · paranormal · action-adventure · monsters · book · myths · violent-conflict · retellings · demons · literary-fiction · invasion · audiobook · aliens · urban
All books in this series ❯
Unit 51
by Michael McBride
3.89 · 28 ratings
supernatural · book · audiobook · paranormal · suspense · aliens · archaeology · action-adventure · fiction · mystery · monsters · adult · horror · sci-fi · psychological · invasion · first-contact · dark · immortality · romantic-love
All books in this series ❯
Deathless
by Chris Fox
4.12 · 46 ratings
fiction · paranormal · audiobook · genetic-engineering · shapeshifters · book · urban-fantasy · horror · adult · fantasy · zombies · survival · post-apocalyptic · vampires · action-adventure · suspense · supernatural · monsters · contemporary · invasion
All books in this series ❯
The Colony
by Michaelbrent Collings
3.87 · 45 ratings
pulp · supernatural · aliens · fiction · action-adventure · post-apocalyptic · invasion · war · book · first-contact · horror · military · adult · monsters · psychological · zombies · conspiracies · suspense · apocalyptic · survival
All books in this series ❯
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 ❯
Space Mage
by Izzy Shows
3.91 · 11 ratings
genetic-engineering · cyberpunk · galactic-empire · supernatural · urban-fantasy · book · invasion · violent-conflict · adult · military · space-fleet · first-contact · space-travel · soldiers · sci-fi · action-adventure · aliens · exploration · fiction · suspense
All books in this series ❯