The Orphans Trilogy: Similar romance series

Bobiverse

by Dennis E. Taylor

4.36 · 224 ratings

sci-fi · space-opera · fiction · audiobook · space · book · space-travel · comedy · action-adventure · aliens · exploration · humor · ai · dystopia · post-apocalyptic · male-author · violent-conflict · hard-sci-fi · transhumanism · young-adult

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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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Red Dwarf

by Grant Naylor

4.06 · 126 ratings

space · audiobook · adult · comedy · satire · sci-fi · humor · fiction · book · action-adventure · contemporary · male-author · 20th-century · space-opera · aliens · robots · genetic-engineering · cyberpunk · time-travel · invasion

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Zones of Thought

by Vernor Vinge

4.11 · 108 ratings

fiction · sci-fi · adult · book · space · hard-sci-fi · exploration · aliens · space-opera · space-travel · first-contact · violent-conflict · invasion · audiobook · action-adventure · singularity · war · epic · 20th-century · male-author

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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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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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Doom Star

by Vaughn Heppner

3.92 · 104 ratings

dystopia · genetic-engineering · space · galactic-empire · colonization · post-apocalyptic · invasion · book · military · space-fleet · adult · violent-conflict · soldiers · sci-fi · space-opera · fiction · action-adventure · aliens · space-travel · exploration

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Bowl of Heaven

by Gregory Benford

3.46 · 44 ratings

hard-sci-fi · invasion · book · aliens · fiction · sci-fi · space-opera · military · first-contact · space · violent-conflict · adult · action-adventure · exploration · space-travel · audiobook · colonization · evolution · ai

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Ascension Wars

by Jasper T. Scott

3.86 · 58 ratings

industrial-era · genetic-engineering · space · galactic-empire · colonization · supernatural · invasion · post-apocalyptic · book · military · first-contact · violent-conflict · historical · adult · space-fleet · soldiers · sci-fi · space-travel · exploration · fiction

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Indian Hill

by Mark Tufo

4.49 · 102 ratings

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

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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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Cade Korbin Chronicles

by Jasper T. Scott

4.35 · 35 ratings

aliens · exploration · fiction · industrial-era · steampunk · adult · space-fleet · historical · violent-conflict · first-contact · military · space-travel · soldiers · sci-fi · book · invasion · cyberpunk · space · genetic-engineering · galactic-empire

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The Terran Fleet Command Saga

by Tori L. Harris

4.29 · 69 ratings

aliens · exploration · colonization · fiction · book · technothriller · invasion · post-apocalyptic · genetic-engineering · space · space-fleet · adult · audiobook · military · violent-conflict · first-contact · space-travel · space-opera · galactic-empire · soldiers

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The Salvage Title Trilogy

by Kevin Steverson

4.31 · 33 ratings

space · invasion · war · book · literary-fiction · colonization · aliens · action-adventure · exploration · fiction · soldiers · galactic-empire · sci-fi · ai · space-opera · space-travel · first-contact · military · space-fleet · adult

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Galactic Empire Wars

by Raymond L. Weil

4.19 · 54 ratings

aliens · soldiers · exploration · fiction · space-travel · space-opera · galactic-empire · sci-fi · military · first-contact · violent-conflict · space · space-fleet · adult · invasion · book · colonization · action-adventure · post-apocalyptic · war

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The Lost Fleet: Outlands

by Jack Campbell

4.38 · 53 ratings

military · space · adult · space-fleet · violent-conflict · sci-fi · action-adventure · fiction · book · war · space-opera · audiobook · first-contact · male-author · cyberpunk · space-travel · aliens · invasion · time-travel · post-apocalyptic

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The Last Hunter

by J.N. Chaney

4.44 · 127 ratings

book · invasion · aliens · fiction · colonization · galactic-empire · space-opera · soldiers · sci-fi · adult · space-fleet · space · genetic-engineering · violent-conflict · military · first-contact · action-adventure · audiobook · exploration · space-travel

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Freedom's Fire

by Bobby Adair

4.10 · 52 ratings

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

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Daedalus

by Michael J. Martinez

3.76 · 25 ratings

steampunk · space · invasion · time-travel · book · historical-fiction · historical · adult · violent-conflict · sci-fi · space-opera · alternate-history · aliens · exploration · fiction · action-adventure · industrial-era · audiobook · post-apocalyptic · first-contact

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AMP

by Stephen Arseneault

4.04 · 48 ratings

space-travel · galactic-empire · sci-fi · genetic-engineering · space · space-fleet · adult · violent-conflict · military · book · post-apocalyptic · exploration · fiction · colonization · soldiers · first-contact · invasion · futuristic · aliens · space-opera

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