- Merry Christmas from Mars
- Merry Christmas, Mister Wolf
- Mesaerion: The Best Science Fiction Stories 1800-1849
- Mesaj de pe sonda spaţială
- Mesaran Sunset
- Mesozoic
- Mesrin Station
- Message From Another Star
- Message from Ceti-Alpha 6
- Message from Gondwana
- Message from Mars
- Message from the Eocene
- Message from the Genorantans
- Message from the Space Probe
- Message of Orion
- Messages from the Deep
- Messaggi dalla Luna
- Messenger from Afar
- Messengers From The West Mountain
- Messiah 2.0
- Met bosmannetje op avontuur
- Met Chron New-Humans (Metamorphosis Chronicles Book 2)
- Met-Chron Sanctuary (Metamorphosis Chronicles Book 1)
- Meta-Misfits
- Meta-Noemics
- Metal and Ash
- Metal Angels - Part One
- Metal Angels - Part Three
- Metal Angels - Part Two
- Metal Bones
- Metal Born
- Metal Fist 1: Singer's Salute
- Metal Flesh (The After Eden Series: Tek-Fall, Episode I)
- Metal Hearts
- Metal Horses
- Metal Snow
- Metal Soldiers: The Collection
- Metalheads & Meatheads
- Metalheart
- Metallic Hope
- Metallic Love
- Metallic Lust : Science Fiction Romance Collection
- Metallic Revolution
- Metalurg
- Metamorph
- Metanoïa- Tome I
- Metaphorosis 2016
- Metaphorosis April 2016
- Metaphorosis April 2017
- Metaphorosis August 2016
- Metaphorosis December 2016
- Metaphorosis February 2016
- Metaphorosis February 2017
- Metaphorosis January 2016
- Metaphorosis January 2017
- Metaphorosis January 2018
- Metaphorosis July 2016
- Metaphorosis July 2017
- Metaphorosis March 2016
- Metaphorosis March 2017
- Metaphorosis May 2016
- Metaphorosis May 2017
- Metaphorosis November 2016
- Metaphorosis November 2017
- Metaphorosis October 2016
- Metaphorosis October 2017
- Metaphorosis September 2016
- Metaphorosis September 2017
- Metaphysical Short Stories
- Metatron
- Metatropolis
- Meteor Attack!
- Meteor Mags: Omnibus Edition
- Meteor Mags: Small Flowers and Other Tales
- Meteor Mags: The Battle of Vesta 4 and Other Tales
- Meteor Mags: The Singing Spell and Other Tales
- Meteoroid Comics: Part One "The Adventures of HERO Savior of the Universe"
- Methuin's Collapse
- Methuselah
- Methuselah's Children
- Metric Modulation
- Metro 2033
- Metro 2034
- Metro 2035
- Metropolis (Enhanced Version)
- Metrovians: The Begining
- Metró – A trilógia
- Metta the Luckless/Мэтта, Мэтью
- Meurtre sur Mars
- Mexican Radio And Other Short Stories, Volume I
- Mexican Radio and Other Short Stories, Volume I
- Mexican Radio And Other Short Stories, Volume II
- Mhixyt
- Miasma
- MIB Files: Bigfoot Hunter
- MIB Files: Introduction
- Micah
- Michael
- Michael Crichton: Series Reading Order - with Summaries & Checklist
- Michael G Coney SF Gateway Omnibus
- Michael Remembers Book 2
- Michael Remembers Book 3
- Michael Remembers Books 1
- Michael Shaara: The Collected Short Stories
- Michael Strogoff: The Courier of the Czar
- Michael's Ivy
- Michel Strogoff (théâtre) – suivi d'annexes
- Michel Strogoff – suivi d'annexes
- Mickey & Nadika
- Mickey 7 – Der letzte Klon
- Micraliens
- Micro
- Micro relatos de ciencia-ficción
- Micro Science Fiction
- Micro-Humanity
- Microbes From Space
- Microcosm
- Microcosmic God
- Microcosms
- Micromegas
- Micromium
- Middle Distance
- Middlemarch Capture
- Midgard
- Midge Fly and the End of The World
- Midnight at the Well of Souls
- Midnight Falcon
- Midnight Haze
- Midnight In The Shadows
- Midnight Parables
- Midnight Sun
- Midnight to Morning
- Midnight Zone a Cade Rearden Thriller
- Midnight's Park
- Midnight's Sun
- Midshipman's Hope
- Midst Toil and Tribulation
- Midsummer Century
- Midway
- Midwinter at Bhisho
- Mighty Good Road
- Migration
- Migration: Beginnings
- Miguel Strogoff (texto completo, con índice activo)