- At the Mountains of Madness (Academic Edition)
- At the Mountains of Madness (Annotated with Critical Essay and H.P. Lovecraft Biography)
- At the Mountains of Madness
- AT THE MOUNTAINS OF MADNESS (The Lost World Classic)
- At the Mountains of Madness - Episode 2
- At the Mountains of Madness / Хребты безумия. Книга для чтения на английском языке
- At the Mountains of Madness : H. P. Lovecraft's Best Classic Horror Thrillers (Best Classic Horror N...
- At the Mountains of Madness, The Call of Cthulhu and The Music of Erich Zann
- At the Stroke of Thirteen
- At Your Darkest : The Graveyard Shift
- Ataque dos Shedim ou demônios no plano físico
- Atavus Falls
- Atiqtalik
- Atlanta Bound
- ATLANTIDE e i mondi perduti
- Atlantis
- Atlântis Ii - A Batalha Em Masquil
- Atmosphere
- Atoll der Zombies
- Atone
- Atos de misericórdia
- Atrapado
- Através Das Noites Mais Escuras
- Atração A Morte o assassino em série de mídia social
- Atrophy
- Atrum Tempestas
- Attack of the Crawling Hand
- Attack of the Ninja Jihadi Russian Gangster Zombies (Also, What I did in my Summer Holidays)
- Attack of the Vampire Elf
- Attitudine alla notte
- Attraverso Lo Specchio
- Attrazione di sangue
- Attrazione mortale
- Até o fim da queda
- Até Que A Brisa Da Manhã Necrose Teu Sistema
- Au bord du monde
- Au bout de l'enfer
- Au bout du tunnel
- Au bras de fer
- Au nom de l'horreur
- Au temps de la comète
- Audiorelatos de Terror
- Audrey - Livre 1
- Audrey - Livre 2
- Auf dem Wege der Besserung
- Auf den Inseln des Zorns
- Auf Dämonenjagd im Lager der Finsternis
- AUF LEBEN UND TOD
- Aufgewühlte Erde
- Aufstand der Dämonen. Band 2
- Augmented Reality
- August Wolf
- August's Eyes
- August's Gardens
- Auguste Villiers de l'Isle-Adam - Oeuvres
- Augustine
- Auld Franklin's Almanak of Doom
- Aunt Clytie's Canning Jars
- Aunt HELLen
- Aunt Mama
- Aunt Téa's Addiction
- Auntie June's Christmas
- Aura de chrome - Tome 1
- Aura de feu - Tome 3
- Aurelia & Flammetta
- Aurelie: On the Road
- Auriane
- Auriol, or The Elixir of Life
- Aurora
- Aurélie: Gates of Immortality
- Aus dem Jenseits verfolgt
- Aus der Dunkelheit
- Aus der Tiefe
- Aus dunklen Federn 2
- Aus tiefster Nacht
- Auschwitz, Ohio
- Aus tiefster Nacht
- Auschwitz, Ohio
- Ausgeburten der Hölle: Grusel-Krimi
- Ausgelöscht
- Ausgewählte Erzählungen & Abenteuerromane (21 Titel in einem Band)
- AUSRADIERT
- Austerley & Kirkgordon Adventures Box Set: Books 1-3 and Origin stories 1-3 (Austerley& Kirkgordon)
- Austin
- Australian Gothic
- Australian Hauntings
- Autobahn
- Autobiography of a Werewolf Hunter (Autobiography of a Werewolf Hunter Book 1)
- Autoestrada Do Horror
- Automaton
- Autopsy I - Flesh of the Dead
- Autopsy II - Darkness Burning
- Auttava käsi
- Autumn
- Autumn - Dawn
- Autumn - The Human Condition
- Autumn Comes Slowly
- Autumn's Calling: The Battle
- Autumn's Calling: The Outbreak
- Autumn's Dying
- Autumn: Purification
- Autumn: The City
- Available Darkness: Book One
- Available Darkness: Book Three
- Available Darkness: Book Two
- Avant les festivités du printemps
- Avant que l'ombre…
- Avenging Demon
- Aventures Arcanes
- Aventures Arcanes - Tome 3
- Aventures Arcanes - Tome 4
- Aventures d'Arthur Gordon Pym
- Avkomling