Longest Sci-Fi Audiobook Series

The longest science fiction audiobook series ranked by total hours — space operas, galactic sagas, and multi-book sci-fi for committed listeners.

Science fiction series in audio can stretch across entire civilizations — and the best ones are worth every hour. These are the longest sci-fi audiobook series ranked by total listening time, from space operas spanning dozens of books to hard sci-fi trilogies with 20+ hour entries.

Whether you want to explore a galaxy for months or deep-dive into a future civilization across hundreds of hours, these series deliver the most listening time per commitment.

1

Expeditionary Force

by Craig Alanson

360h 33m total 20 books ★ 4.56 avg

Books in series:

#1 Columbus Day, #2 SpecOps, #3 Paradise, #4 Black Ops, #5 Zero Hour, #6 Mavericks, #7 Renegades, #7 Homefront: An Expeditionary Force Audio Drama Special, #8 Armageddon, #9 Valkyrie, #10 Critical Mass, #11 Brushfire +8 more
2

Halo

by Eric S. Nylund

246h 49m total 22 books ★ 4.21 avg

Books in series:

#1 Halo: The Fall of Reach, #4 Halo: Ghosts of Onyx, #5 Halo: Contact Harvest, #6 Halo: The Cole Protocol, #11 Halo: Glasslands, #12 Halo: The Thursday War, #13 Halo: Mortal Dictata, #14 Halo: Broken Circle, #15 New Blood, #17 Halo: Saint's Testimony, #18 Halo: Last Light, #19 Halo: Fractures - Extraordinary Tales from the Halo Canon +10 more
3

The Expanse

by James S.A. Corey

240h 49m total 13 books ★ 4.36 avg

Books in series:

#1 Leviathan Wakes, #1 Leviathan Wakes, #2 Calibans Krieg, #2 Gods of Risk, #2 Caliban - La guerra, #3 Abaddon's Gate, #3 Abaddon's Gate, #3 Abaddon's Gate. La fuga, #4 Cibola Burn, #5 Nemesis Games, #6 Babylon’s Ashes, #7 Persepolis Rising +1 more
4

Silver Ships

by S.H. Jucha

177h 39m total 14 books ★ 4.15 avg

Books in series:

#1 The Silver Ships, #2 Libre, #3 Méridien, #4 Haraken, #5 Sol, #6 Espero, #7 Allora, #8 Celus-5, #9 Omnia, #10 Vinium, #11 Nua'll, #12 Artifice +2 more
5

Assiti Shards

by Eric Flint, Andrew Dennis

174h 59m total 10 books ★ 3.84 avg

Books in series:

#3 1634: The Galileo Affair, #4 1634: The Ram Rebellion, #7 1635: A Parcel of Rogues, #8 1635: The Cannon Law, #9 1635: The Dreeson Incident, #11 1635: Papal Stakes, #13 1636: The Kremlin Games, #15 1636: The Devil's Opera, #17 1636: The Viennese Waltz, #20 1636: Seas of Fortune
6

Red Rising

by Pierce Brown

152h 5m total 7 books ★ 4.63 avg

Books in series:

#1 Red Rising, #1 Red Rising (Part 1 of 2) (Dramatized Adaptation), #2 Golden Son, #3 Morning Star, #4 Iron Gold, #5 Dark Age, #6 Light Bringer
7

Dune

by Frank Herbert

152h 4m total 9 books ★ 4.16 avg

Books in series:

#1 Dune, #2 Dune Messiah, #3 Children of Dune, #4 God Emperor of Dune, #5 Heretics of Dune, #6 Chapterhouse: Dune, #7 Hunters of Dune, #8 Sandworms of Dune, The Road to Dune
8

Vorkosigan Saga (Publication Order)

by Lois McMaster Bujold

147h 49m total 12 books ★ 4.24 avg

Books in series:

#1 Shards of Honor, #3 Ethan of Athos, #4 Falling Free, #5 Brothers in Arms, #8 Mirror Dance, #9 Cetaganda, #10 Memory, #11 Komarr, #12 A Civil Campaign, #13 Diplomatic Immunity, #15 Captain Vorpatril's Alliance, #16 Gentleman Jole and the Red Queen
9

Welcome to the Multiverse

by Sean Oswald

144h 34m total 9 books ★ 4.38 avg

Books in series:

#1 Induction, #2 Countdown, #3 Collapse, #4 Resistance, #5 Contention: A Litrpg Apocalypse (Welcome to the Multiverse Book 5), #6 Control: Welcome to the Multiverse, #7 Invasion: A Litrpg Apocalypse (Welcome to the Multiverse Book 7), #9 Divergence: A Litrpg Apocalypse, #10 Exploration: A Litrpg Apocalypse
10

Night's Dawn

by Peter F. Hamilton

130h 5m total 3 books ★ 4.19 avg

Books in series:

#1 The Reality Dysfunction, #2 The Neutronium Alchemist, #3 The Naked God
11

Pern

by Anne McCaffrey

123h 18m total 9 books ★ 4.32 avg

Books in series:

#2 Dragonquest, #5 The White Dragon, #9 Dragonsdawn, #10 The Renegades of Pern)] published on (March, 1991), #11 All the Weyrs of Pern, #13 Dragonseye, #14 The Masterharper of Pern, #15 The Skies of Pern, #16 Dragon's Kin
12

Commune

by Joshua Gayou

114h 40m total 7 books ★ 4.19 avg

Books in series:

#1 Commune: Book One, #2 Commune: Book Two, #3 Commune: Book Three, #4 Commune: Book Four, #5 The Battle of D.C., #6 The Slavers of Grand Saline, #7 Commune 7: Bloody Sun (Commune Series)
13

Galaxy's Edge

by Jason Anspach, Nick Cole

112h 4m total 10 books ★ 4.12 avg

Books in series:

#1 Legionnaire, #2 Galactic Outlaws, #3 Kill Team, #4 Attack of Shadows, #6 Sword of the Legion, #8 Turning Point, #11 Galaxy's Edge Part VI: Takeover (Galaxy's Edge Series, 6), #12 Legacies, #13 Dark Victory, #19 The Wanted
14

Terra Ignota

by Ada Palmer

111h 36m total 6 books ★ 3.87 avg

Books in series:

#1 Too Like the Lightning, #1 Too Like the Lightning (1 of 2) : Terra Ignota 1, #2 Seven Surrenders, #3 The Will to Battle, #4 Perhaps the Stars, #4 Perhaps the Stars (Part 3 of 3) (Dramatized Adaptation): Terra Ignota
15

1632 Universe/Ring of Fire

by Eric Flint, Paula Goodlett, Gorg Huff

106h 1m total 8 books ★ 3.83 avg

Books in series:

#14 1635: The Wars for the Rhine (24) (Ring of Fire), #19 1637: The Volga Rules, #22 1636: The Vatican Sanction, #32 1636: Mission to the Mughals (Ring of Fire), #33 1636: The China Venture (Ring of Fire Book 27), #34 1636: The Atlantic Encounter, #37 1637: The Peacock Throne, #38 1637: The Coast of Chaos
16

Ring of Fire Main Line Novels

by David Weber, Eric Flint

101h 51m total 5 books ★ 4.05 avg

Books in series:

#2 1633, #3 1634: The Baltic War, #4 1635: The Eastern Front, #5 1636: The Saxon Uprising, #6 1636: The Ottoman Onslaught (21) (Ring of Fire)
17

The Passage

by Justin Cronin

92h 41m total 3 books ★ 4.25 avg

Books in series:

#1 The Passage, #2 The Twelve, #3 The City of Mirrors
18

System Universe

by SunriseCV

88h 33m total 6 books ★ 4.41 avg

Books in series:

#2 Torith, #3 Savannah, #4 Trials of Cydaria, #5 System Interference, #6 Indaria, #7 Requirements
19

Wayward Galaxy

by Jason Anspach, J.N. Chaney

84h 43m total 7 books ★ 4.27 avg

Books in series:

#1 Wayward Galaxy, #2 Wayward Galaxy 2, #3 Wayward Galaxy 3, #4 Wayward Galaxy 4, #5 Wayward Galaxy 5, #6 Wayward Galaxy 6, #7 Wayward Earth
20

Star Trek: Discovery

by Una McCormack

84h 41m total 8 books ★ 3.85 avg

Books in series:

#1 Star Trek: Discovery: Desperate Hours, #2 Star Trek: Discovery: Drastic Measures, #3 Fear Itself, #4 The Way to the Stars, #6 Star Trek: Discovery: Dead Endless, #7 Die Standing, #8 Wonderlands, #9 Star Trek: Discovery: Somewhere to Belong
21

Arisen

by Michael Stephen Fuchs

83h 32m total 8 books ★ 4.42 avg

Books in series:

#1 Arisen Omnibus Edition: Books 1-3, #4 Maximum Violence, #6 The Horizon, #7 Death of Empires, #9 Cataclysm, #10 The Flood, #12 Carnage, #13 The Siege
22

Mars Trilogy

by Kim Stanley Robinson

82h 56m total 3 books ★ 3.90 avg

Books in series:

#1 Red Mars, #2 Green Mars, #3 Blue Mars
23

Hell Divers Series

by Nicholas Sansbury Smith

82h 30m total 8 books ★ 4.68 avg

Books in series:

#1 Hell Divers: The Lost Years, #2 Hell Divers II: Ghosts, #3 Hell Divers III: Deliverance, #4 Hell Divers IV: Wolves, #5 Hell Divers V: Captives, #6 Hell Divers VI: Allegiance, #7 Hell Divers VII: Warriors, #8 Hell Divers VIII: King of the Wastes
24

Legends of Dune

by Brian Herbert, Kevin J. Anderson

76h 50m total 3 books ★ 4.13 avg

Books in series:

#1 The Butlerian Jihad, #2 The Machine Crusade, #3 The Battle of Corrin
25

Hyperion Cantos

by Dan Simmons, Gary Ruddell

74h 49m total 3 books ★ 4.37 avg

Books in series:

#2 The Fall of Hyperion, #3 Endymion, #4 The Rise of Endymion
26

The Gap Cycle

by Stephen R. Donaldson

72h 22m total 4 books ★ 3.94 avg

Books in series:

#1 The Gap Into Conflict: The Real Story, #2 The Gap Into Vision: Forbidden Knowledge, #3 The Gap Into Power: A Dark and Hungry God Arises, #4 The Gap Into Madness: Chaos and Order
27

Revelation Space

by Alastair Reynolds

68h 58m total 3 books ★ 4.02 avg

Books in series:

#1 Revelation Space, #3 Absolution Gap, #4 Inhibitor Phase
28

Foundation (Publication Order)

by Isaac Asimov

66h 13m total 5 books ★ 4.37 avg

Books in series:

#2 Foundation and Empire, #3 Second Foundation, #4 Foundation's Edge, #6 Prelude to Foundation, #7 Forward the Foundation
29

Children of Time

by Adrian Tchaikovsky

65h 34m total 4 books ★ 4.15 avg

Books in series:

#1 Children of Time, #2 Children of Ruin, #3 Children of Memory, #4 Children of Strife
30

Remembrance of Earth's Past

by Liu Cixin, Joel Martinsen

64h 53m total 3 books ★ 4.45 avg

Books in series:

#1 The Three-Body Problem, #2 The Dark Forest, #3 Death's End

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