Harry Irons: Similar romance series

The Expanse Chronological

by James S.A. Corey

4.25 · 772 ratings

sci-fi · space-opera · space · hard-sci-fi · fiction · aliens · adult · action-adventure · audiobook · 21st-century · mystery · book · male-author · violent-conflict · dystopia · horror · futuristic · war · suspense · epic

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Arbai

by Sheri S. Tepper

3.98 · 74 ratings

feminism · book · 20th-century · sci-fi · historical · adult · female-author · fiction · space · literary-fiction · invasion · religion · supernatural · space-opera · space-travel · violent-conflict · hard-sci-fi · spirituality · exploration · aliens

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Duchy of Terra

by Glynn Stewart

4.40 · 65 ratings

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

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Embers of War

by Gareth L. Powell

3.83 · 53 ratings

ai · aliens · fiction · action-adventure · war · military · audiobook · adult · space-fleet · space · violent-conflict · sci-fi · space-opera · book · mystery · anthologies · industrial-era · steampunk · lgbtq · historical

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Humanx Commonwealth

by Alan Dean Foster

3.88 · 399 ratings

sci-fi · fiction · space-opera · space · action-adventure · aliens · book · young-adult · mystery · audiobook · adult · dragons · literary · anthologies · classics · space-travel · first-contact · hard-sci-fi · paranormal · 20th-century

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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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Legion

by William C. Dietz

3.85 · 126 ratings

military · violent-conflict · adult · sci-fi · space-opera · action-adventure · fiction · audiobook · space · book · war · aliens · cyberpunk · dystopia · post-apocalyptic · space-fleet · robots · exploration · space-travel · time-travel

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Borderlands

by Susan Grant

3.77 · 34 ratings

book · adult · space · paranormal · sci-fi · space-opera · aliens · fiction · action-adventure · futuristic · romance · military · outlaws · steamy · gothic · alpha-mc · violent-conflict · children · enemies-to-lovers · female-mc

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The Universe After

by Drew Williams

3.86 · 34 ratings

space-opera · sci-fi · space-fleet · space · violent-conflict · audiobook · military · war · book · aliens · action-adventure · fiction · humor · alternate-universe · mystery · adult · magic · dystopia · far-future · futuristic

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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

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Star Trek: A Time to...

by Keith R.A. DeCandido

3.82 · 92 ratings

space-opera · sci-fi · genetic-engineering · violent-conflict · military · book · invasion · aliens · fiction · action-adventure · adult · space · first-contact · literary-fiction · journey · children-books

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Delroi Connection

by Loribelle Hunt

3.69 · 48 ratings

adult · military · action-adventure · fiction · book · alpha-mc · sci-fi · paranormal · aliens · steamy · romance · futuristic · fated-mates · space-opera · space-travel · psychics · female-mc · other-world · space · soldiers

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Planet of Adventure

by Jack Vance

3.98 · 66 ratings

fiction · adult · sci-fi · action-adventure · book · space · pulp · sword-planet · audiobook · space-opera · classics · literary · single-planet · aliens · box-set · contemporary · subterranean · anthologies · male-author

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The Theogony

by Chris Kennedy

3.95 · 27 ratings

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

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Star Trek: Department of Temporal Investigations

by Christopher L. Bennett

3.99 · 45 ratings

space · adult · space-opera · fiction · sci-fi · action-adventure · time-travel · book · invasion · military · violent-conflict · aliens · genetic-engineering · first-contact · hard-sci-fi · dystopia · ai · travel · suspense · spirituality

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Star Trek: The Lost Years

by J.M. Dillard

3.65 · 26 ratings

space-opera · military · adult · action-adventure · aliens · fiction · genetic-engineering · invasion · violent-conflict · sci-fi · book · female-author

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Sequoyah

by Sabrina Chase

4.15 · 24 ratings

book · time-travel · futuristic · action-adventure · fiction · female-mc · space-opera · sci-fi · paranormal · space · adult · military · first-contact · war · romance · aliens · colonization · space-travel · violent-conflict · historical-fiction

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Skeen

by Jo Clayton

3.89 · 18 ratings

space-opera · aliens · fiction · action-adventure · invasion · book · female-author · adult · violent-conflict · space · sci-fi · low-fantasy · espionage · political-intrigue · mystery · lgbtq · space-travel

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Star Trek: I.K.S. Gorkon

by Keith R.A. DeCandido

4.00 · 24 ratings

action-adventure · space · adult · fiction · book · space-opera · sci-fi · genetic-engineering · aliens · military · violent-conflict · invasion · first-contact

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