- Inside Burning Sands
- Inside the Gates Of Doons
- Inside the Mind of the Virus
- Inside the Mind of the Virus 2: America
- Inside Voice
- Insider: Dark Fantasy Short Story
- Insides
- Insieme al traguardo
- Insight Me
- Insomnia
- Insomnia: Paranormal Tales, Science Fiction, and Horror
- Insomnie
- Insomnio
- INSOMNIO
- Inspection
- Insperatus
- Inspired
- Insta Scare
- Insta-Spavento
- Institutional Memory
- Insurreição no cemitério
- Intellectual Property
- Intempesta Nocte
- Intent
- Interceptions
- Interference
- Interior Darkness
- Interlinked Destiny
- Interludes
- Internet Killed the Video Star
- Interpreting A Man's Intentions
- Interstate
- Intertwined
- Interview
- Interview Inside a Terrarium
- Interview mit einem Vampir
- Interview With the Bigfoot
- Interview with the Vampire
- Intervista col vampiro
- Intets Änglar
- Intimations of Death
- Intimações da morte
- Into a Long Ago Future
- Into Darkness: The Vampire's Mate
- Into Hell
- Into the After
- Into the Badlands
- Into The Blackest Night
- Into The Blue
- Into The Darkness
- Into the Depths With Hope and Despair
- Into the Devil's Reach
- Into the Drowning Deep
- Into The Hallway
- Into the hands of the Fallen: Book One in the The Gathering series.
- Into the Heart of Madness
- Into the Hollow
- Into the Light
- Into the Mindsai: A Region of Significance Beyond the Veil
- Into the Mirror Black
- Into the Mist
- Into the Mystic Vol 1 & 2 of the Dream Weaver Series
- Into the Out Of
- Into the Red
- Into The Ruins
- Into the Scary
- Into the Small Hours
- Into the Strange
- Into The Tall Grass
- Into the Thinnest of Air
- Into the Velvet Darkness
- Into the Wasteland: A Zombie Novel
- Into the Woods
- Into the Woods (Anomaly Hunters, Book One)
- Introducing Penny Dreadnought, Insidious Indoctrination Engine of the Abominable Gentlemen
- Introvert
- Intruder: A Horrifying, Poetic Tale
- Intrusive
- Intrusive Thoughts
- Inundated
- Inuti Wilda
- Invaders from the Attic
- Invaders from the Dark
- Invasion des grauen Todes: Phenomena 5
- Invasion Manhattan (Zombie Dawn Stories)
- Invasion of the Body Snatchers
- Invasion of the Book Snatchers
- Invasive Species
- Investigation of Davis Swamp
- Invisible
- Invisible Dead Person and Other Weird Tales
- Invisible Things and other Weird Stories
- Invocation
- Invocations
- Invocatrix
- Involución
- Involuntary
- Inès de Las Sierras
- Io sono il Male
- Io Sono Il Tuo Uomo Nero - Un Racconto Della Contea Di Sardis
- Io, Dracula
- Ipnagogica
- Ippocampo
- Ira
- Iris Woke Up
- Irish Gothic: Tales of Celtic Horror
- Irkadura
- Irma
- Iron and Salt
- Iron Road
- Ironclad Contract
- Irrealidades a doble espacio: La sonrisa irónica de un naufrago
- Irreverent
- Irritationen des Irrsinns
- Irrlichtkönigin
- Irrsinn
- Irv
- Is It Haunted?
- Is She Dead in Your Dreams?
- Is the Devil a Gentleman - And Other Satanic Stories