- Marquis de Mort
- Marquée
- Marriage of Heaven and Hell
- Marta's Wish
- Martholamew; Beast Beneath the Grave
- Martian Knights & Other Tales
- Martin Kier and The Dead
- Marty & Me: Another Pirate's Tale
- Marty's Place
- Martyrs
- Marvels and Mysteries
- Mary
- Mary Had Too Many Limbs
- Mary Hades
- Mary out O’ the Earth
- Mary Reilly
- Mary Rose
- Mary Shelley Deluxe Collection
- Mary Shelley Horror Stories
- Mary Shelley's Frankenstein (Illustrated)
- Mary Shelley: The Ultimate Collection (All 7 Novels including Frankenstein, Short Stories, Bonus Aud...
- Mary Twelves
- Mary Ventura and The Ninth Kingdom
- Mary's Little Lamb
- Mary, Mary
- Mary-Beth Moves
- Mary: Chasing a Killer (Tales of the Executioners)
- Masca
- Mask of Death
- Mask of the Macabre
- Masked
- Maskenball auf Nightingale Hall
- Maskenhandlungen
- Maski
- Maso
- Mason Dixon & the Ghost Dinosaur
- Mason Dixon - Monster Hunter
- Mason Dixon - Monster Hunter
- Masque of the Vampire
- Masquerade
- Masquerade the Deviant Behaviour of a Sexual Predator
- Massacres Of The South
- Master of Chaos
- Master of Darkness
- Master of the Crossroads
- Master of the House
- Master of the Moors
- Mastering Id
- Masterpieces of Edgar Allan Poe
- Masterpieces of Mystery: Mystic-Humorous Stories, Ghost Stories, Riddle Stories and Detective Storie...
- Masterpieces of Mystic-Humorous
- Masters of Blood and Bone
- Masters of Midnight
- Masters of Prose - Bram Stoker
- Masters of Prose - Edgar Allan Poe
- Masters of Prose - H. P. Lovecraft
- Masters of Prose - Robert Louis Stevenson
- Mastication Nation
- Matapeli Kwenye Mtandao Wa Intanet
- Mate To Order
- Mated By A Thug
- Mated to the Wolf
- Mathilda
- Mathilde, A Woman of Circumstance
- Matinee at the Flame
- Mating Season
- Matriarch, Part 1
- Matriarch, Part 2
- Matt Vol II: Chaos In Dubai
- Matteo
- Matthew - Glaube nicht an den Tod
- Maud-Evelyn (1900)
- Mauled
- Mausoleum 2069
- Mauvais esprits
- Maverick’s Point. Prologo de L’Isola delle Celebrità (2 di 4)
- Maw and Other Stories
- Max Havelaar met zombies
- Max Is Not A Fish
- Max Muckel Band 6
- Maximum Ride: Saving the World and Other Extreme Sports
- May Contain ????? ?????
- May I Have A Ride
- Maya's Nirvana
- Mayday: A Kaiju Thriller
- Mayor of the Damned (Sven the Zombie Slayer, Book 3)
- Maze; Revenants; Chiaroscuro in Chalk: Three Fantasies
- Mazo y el León
- MBI: Monster Bureau Of Investigations
- McSweeney's Enchanted Chamber of Astonishing Stories
- Me...and the Undead
- Meadow View Road
- Meadowlarks
- Meals on Wheels
- Mean Spirit
- Mean Spirits
- Meaningless Night
- Meant
- Meat City & Other Stories
- Meat Coma
- Meat Puppet
- Meat Your Maker
- Meatlocker: Dark Stories
- Mechanical
- Meddling Kids
- Medianoche viene con el Amanecer
- Medicamentum
- Medicine Cup
- Medicine for the Dead