- Icicle: A Tensor Matrix
- Icicles Melting
- Ickles Island
- Icky Waddles
- ICO: Castle of the Mist
- Icon
- Icon of Paradise (Paradise, #1)
- Iconic Reflections
- Iconique
- Icons
- Icons 1
- ICTUS
- Icy Passage
- Id
- Idanha Hotel
- IDbyET
- Ideal
- Ideal Commonwealths
- Ideal Insurgent
- Ideally Imperfect
- Ideando libertad
- Ideas and Entities
- Ideas Will Not Perish
- Idegen istenek
- Idegenek
- Idem's
- Idemoni di Eukora. Il Mezz'orco
- Identity (Book 5 - Windfire Series)
- Identity Illusions: A RolePages Novella
- Identity Swap: Card People 2
- Identity Theft
- Identity, Heritage Lost, Book I
- Identityless
- Ideocide
- Ideology 4109
- Ides
- Ides of the May (Children of the May Book 2)
- Idiosyncrasies Laid Bare
- Idle Horns
- Idle Ingredients
- Idle Thoughts of an Idle Fellow
- Idlesea
- Idnahold: Invasion
- Ido
- Idol
- IDol
- IDoL
- Idol Hands
- Idolatry
- Idoli e altri racconti fantastici
- Idols
- Idols and Enemies
- Idool
- Idoru
- Iduna's Universe
- Idyllian
- Idyllic Avenue
- Idylls of a Lazurai
- Idylls of a Lazurai Anthology
- Idylls of the King
- Idylls of the King (Unabridged)
- Idéző
- Időgép menetrend szerint
- Időhurok
- Időostrom
- Időrabló
- Időtörés
- Időugrás a Marson
- Iezegrimmig
- IF
- If
- If
- If Shoes Could Talk...
- If [tribe] =
- If a Princess Wishes
- If a Tree Falls
- If All the Sand Were Pearl
- If Angels Burn
- If Angels Fight
- If Animals Could Speak
- If Dragon's Mass Eve Be Cold And Clear
- If Dragon's Mass Eve Be Cold and Clear
- If Dreams Can Die
- If Fallen Angels Could Fly
- If Fate Fractures (Volume 4: The Hurricane Journals)
- If Frogs Could Fly
- If He Only Had A Heart
- If I Can't Have You
- If He Only Had A Heart
- If I Can't Have You
- If I Can't Have You: Mind Games Series Book 1
- If I Had A Hammer
- If I Had...then
- If I Never Get Back
- If I Should Die Before It Wakes, and other stories
- If I Should Live So Long
- If I Were An Animal
- If I Were You
- If It Takes a Lifetime
- If It's Easy
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 1
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 2
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 3
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 4
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 5
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 6
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 7
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 8
- If It’s for My Daughter, I’d Even Defeat a Demon Lord: Volume 9
- If Jove Stray
- If Living Is Seeing I'm Holding My Breath
- If Looks Could Kill
- If Not for the Fall
- If Not Honour
- If Not Liberty
- If Not Us
- If Only I Could Fly
- If Only, If Only: A Collection of Magical and Humorous Short Stories
- If She's Wicked
- If Sin Dwells Deep (Book Two of The Soul Sleep Cycle)
- If Souls Can Sleep (Book One of The Soul Sleep Cycle)
- If the Hell Freezes
- If The Rain Shall Fall
- If the RPG World Had Social Media..., Vol. 1 (light novel)
- If The Shoe Fits
- If The Stars Are Gods
- If the Stars Are Gods
- If the Sun Died
- If This Goes Wrong . . .
- If This Isn't, I Don't Know What Is.
- If Truth Dies