Free Science Fiction Books to Read Online

Browse 98 free public-domain Science Fiction books to read online or hear as AI audiobooks on Efil Books — no cost, no account.

• The Moon Pool by A. Merritt
• Short Fiction by Algis Budrys
• Key Out of Time by Andre Norton
• Plague Ship by Andre Norton
• Short Fiction by Andre Norton
• Star Born by Andre Norton
• Star Hunter by Andre Norton
• Storm Over Warlock by Andre Norton
• The Defiant Agents by Andre Norton
• The Time Traders by Andre Norton
• Voodoo Planet by Andre Norton
• The Maracot Deep by Arthur Conan Doyle
• Omega by Camille Flammarion
• Stand by for Mars! by Carey Rockwell
• Short Fiction by Charles Beaumont
• Herland by Charlotte Perkins Gilman
• Short Fiction by Clark Ashton Smith
• Short Fiction by Clifford D. Simak
• Short Fiction by Cordwainer Smith
• First Lensman by E. E. Smith
• The Skylark of Space by E. E. Smith
• Triplanetary by E. E. Smith
• Short Fiction by E. M. Forster
• Short Fiction by Edgar Allan Poe
• At the Earth’s Core by Edgar Rice Burroughs
• Beyond Thirty by Edgar Rice Burroughs
• Pellucidar by Edgar Rice Burroughs
• The Land That Time Forgot by Edgar Rice Burroughs
• The Moon Maid by Edgar Rice Burroughs
• Looking Backward by Edward Bellamy
• The Coming Race by Edward Bulwer-Lytton
• Short Fiction by Frank Belknap Long
• Search the Sky by Frederik Pohl, C. M. Kornbluth
• Plague of Pythons by Frederik Pohl
• Short Fiction by Frederik Pohl
• Short Fiction by Fritz Leiber
• The Big Time by Fritz Leiber
• Four-Day Planet by H. Beam Piper
• Little Fuzzy by H. Beam Piper
• Short Fiction by H. Beam Piper
• Space Viking by H. Beam Piper
• The Cosmic Computer by H. Beam Piper
• Uller Uprising by H. Beam Piper
• In the Days of the Comet by H. G. Wells
• Short Fiction by H. G. Wells
• The First Men in the Moon by H. G. Wells
• The Food of the Gods by H. G. Wells
• The Invisible Man by H. G. Wells
• The Island of Doctor Moreau by H. G. Wells
• The Time Machine by H. G. Wells
• The War of the Worlds by H. G. Wells
• The World Set Free by H. G. Wells
• At the Mountains of Madness by H. P. Lovecraft
• Planet of the Damned by Harry Harrison
• The Stainless Steel Rat by Harry Harrison
• Short Fiction by Henry Kuttner
• Short Science Fiction by Isaac Asimov
• Nordenholt’s Million by J. J. Connington
• A Strange Manuscript Found in a Copper Cylinder by James De Mille
• Invaders from the Infinite by John W. Campbell
• Islands of Space by John W. Campbell
• The Black Star Passes by John W. Campbell
• The Inheritors by Joseph Conrad, Ford Madox Ford
• Facing the Flag by Jules Verne
• Journey to the Center of the Earth by Jules Verne
• R.U.R. by Karel Čapek
• The Absolute at Large by Karel Čapek
• The Purple Cloud by M. P. Shiel
• Short Fiction by Mack Reynolds
• Short Fiction by Manly Wade Wellman
• Frankenstein by Mary Shelley
• The Last Man by Mary Shelley
• Armageddon 2419 A.D. by Philip Francis Nowlan
• The Airlords of Han by Philip Francis Nowlan
• Short Fiction by Philip K. Dick
• Gladiator by Philip Wylie
• Short Fiction by Poul Anderson
• Short Fiction by R. A. Lafferty
• Short Fiction by Ray Bradbury
• After London by Richard Jefferies
• The Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson
• Short Fiction by Robert Sheckley
• The World Below by S. Fowler Wright
• The Jewels of Aptor by Samuel R. Delany
• Short Fiction by Stanley G. Weinbaum
• Metropolis by Thea von Harbou
• The Survivors by Tom Godwin
• Short Fiction by Walter M. Miller Jr.
• The House on the Borderland by William Hope Hodgson
• The Night Land by William Hope Hodgson
• We by Yevgeny Zamyatin
• Black No More by George Schuyler
• Last and First Men by Olaf Stapledon
• A Honeymoon in Space by George Chetwynd Griffith
• A Journey to the Centre of the Earth by Jules Verne
• Twenty Thousand Leagues Under the Sea by Jules Verne
• The Sex Life of the Gods by M. E. Knerr
• The Crack of Doom by Robert Cromie