Species Imperative: Similar romance series

The Tower and the Hive

by Anne McCaffrey

3.97 · 170 ratings

space · audiobook · paranormal · romance · female-author · space-opera · space-travel · epic · sci-fi · aliens · fiction · action-adventure · psychics · futuristic · young-adult · supernatural · book · invasion · violent-conflict · female-mc

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Children of Time

by Adrian Tchaikovsky

4.18 · 100 ratings

book · audiobook · space · ai · action-adventure · aliens · fiction · hard-sci-fi · first-contact · violent-conflict · adult · sci-fi · space-travel · space-opera · invasion · post-apocalyptic · contemporary · 21st-century · genetic-engineering · survival

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Catteni

by Anne McCaffrey

3.96 · 124 ratings

sci-fi · space-travel · space-opera · female-author · first-contact · adult · violent-conflict · futuristic · aliens · fiction · action-adventure · audiobook · dystopia · space · invasion · romance · other-world · colonization · female-mc · survival

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Xenogenesis

by Octavia E. Butler

4.25 · 151 ratings

female-author · first-contact · horror · poc-author · post-apocalyptic · classics · literary · feminism · space · dystopia · apocalyptic · lgbtq · action-adventure · afrofuturism · aliens · fiction · female-mc · poc-mc · 20th-century · sci-fi

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Binti

by Nnedi Okorafor

3.95 · 142 ratings

poc-mc · sci-fi · fiction · coming-of-age · feminism · dystopia · space · audiobook · poc-author · young-adult · space-opera · violent-conflict · female-author · afrofuturism · aliens · action-adventure · 21st-century · book · mental-illness · magic

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Imperial Radch

by Ann Leckie

4.05 · 193 ratings

fiction · adult · sci-fi · space-opera · book · lgbtq · space · ai · action-adventure · female-author · 21st-century · hard-sci-fi · military · violent-conflict · politics · female-mc · robots · aliens · futuristic · war

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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

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Confluence

by Jennifer Foehner Wells

4.09 · 118 ratings

aliens · exploration · fiction · female-mc · space-opera · space-travel · sci-fi · adult · book · space · action-adventure · violent-conflict · first-contact · invasion · audiobook · futuristic · military · female-author · technothriller · romance

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Marsbound

by Joe Haldeman

3.50 · 64 ratings

violent-conflict · first-contact · sci-fi · action-adventure · aliens · fiction · space · dystopia · audiobook · book · invasion · post-apocalyptic · adult · space-travel · space-opera · exploration · hard-sci-fi · time-travel · historical · military

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Linesman

by S.K. Dunstall

4.13 · 60 ratings

friendship · aliens · action-adventure · fiction · war · female-author · first-contact · military · space-fleet · adult · violent-conflict · sci-fi · space-opera · invasion · book · audiobook · space · exploration · futuristic · space-travel

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Gaea Trilogy

by John Varley

4.10 · 60 ratings

fiction · aliens · audiobook · space · anthologies · invasion · romantic-love · sci-fi · space-travel · space-opera · violent-conflict · adult · hard-sci-fi · lgbtq · wlw · female-mc · action-adventure · cyberpunk · dystopia · military

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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

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Trade Pact Universe

by Julie E. Czerneda

3.94 · 44 ratings

time-travel · female-author · first-contact · adult · sci-fi · space-opera · female-mc · psychics · action-adventure · aliens · fiction · space · paranormal · anthologies · romance · military · violent-conflict · alpha-mc · dystopia · colonization

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Aurora Rising

by G.S. Jennsen

4.13 · 66 ratings

first-contact · military · sci-fi · space-opera · space-travel · fiction · action-adventure · cyberpunk · galactic-empire · colonization · book · space-fleet · violent-conflict · aliens · exploration · space · ai · romance · adult · soldiers

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Indian Hill

by Mark Tufo

4.49 · 102 ratings

violent-conflict · adult · first-contact · sci-fi · aliens · fiction · book · invasion · post-apocalyptic · space-fleet · military · space-travel · soldiers · action-adventure · exploration · space · audiobook · zombies · colonization · horror

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Dark Space

by Jasper T. Scott

3.84 · 82 ratings

invasion · space-fleet · book · galactic-empire · audiobook · space · fiction · aliens · sci-fi · space-opera · military · violent-conflict · adult · historical · supernatural · genetic-engineering · dystopia · cyberpunk · steampunk · industrial-era

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AL:ICE

by Charles W. Lamb

4.13 · 46 ratings

aliens · fiction · soldiers · space-opera · sci-fi · audiobook · military · first-contact · litrpg · space · violent-conflict · dystopia · invasion · adult · book · apocalyptic · time-travel · harem · action-adventure · paranormal

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