- Unleash the Inferno
- Unleash the Night
- Unleash The Night
- Unleashed
- Unleashed (Evolution Series Book 7)
- Unleashed (The Elements Trilogy, #3)
- Unleashed by her Bear
- Unleashed by the Moon
- Unleashed Dragon
- Unleashed Fury (BloodRunes
- Unleashed Legends: Blood in the Water
- Unleashed Valkyrie
- Unleashed, Fae Shifters 2
- Unleashed: Book One of the Saga of Ruination
- Unleashed: explicit stories of wild love and magic
- Unleashing A Warrior
- Unleashing Echoes
- Unleashing Iron
- Unleashing Julia: Mind Games Series Book 2
- Unleashing the Gods
- Unleashing the Shadows
- Unlife
- Unlight - L'histoire de la carte rare
- Unlight L'histoire de la carte rare
- Unlight RareCard Story
- Unlikely
- Unlikely Heroes
- Unlikely Prophet
- Unlimited Class
- Unlimited Online Game
- Unlit
- Unlocked
- Unlocked Stories
- Unlocked: The Door Book Two
- Unlocking Her Chances
- Unlocking Her Doubts
- Unlocking Her Dreams
- Unlocking Her Grace
- Unlocking Her Heart
- Unlocking Her History
- Unlocking the Devil
- Unlovable
- UNLOVELY
- Unlucky Charm
- Unlucky in Love
- Unlucky Stiff
- Unlucky Terror
- Unlösbares Rätsel
- UNMADE
- Unmagic
- Unmarked Graves
- UnMasked
- Unmasked Alloy (Sub-Normal, #2)
- Unmasking
- Unmasking Of A Lady
- Unmoored
- UnNamed
- Unnamed Memory, Vol. 1 (light novel)
- Unnamed Memory, Vol. 2 (light novel)
- Unnamed Memory, Vol. 3 (light novel)
- Unnamed Memory, Vol. 4 (light novel)
- Unnamed Memory, Vol. 5 (light novel)
- Unnatural
- UNNATURAL DISASTER
- Unnatural History
- Unnatural Immortal
- Unnatural Magic
- Unnatural Selexion
- Unnatural Temptation Vol. I
- Unnatural Things
- Unnatural Time (Infinity, Ltd. #1)
- Unnaturally Female
- Unnaturals
- Unnecessary Noises
- Unnecessary Treasures: Uncommon Synths
- Unnhild
- Uno nessuno centomila
- Uno scheletro sepolto
- Uno Schiavo A Lupi
- Uno Splendido Futuro
- Uno strano paese
- Uno strano primo maggio
- Uno, due e tre...racconti fantastici
- Unofficial Guide to HEROES Season One
- Unofficial School Business
- Unorthodox
- Unoworld Stories Book 1
- Unoworld Stories Book 2
- Unparalled Demon Lord
- Unparalled Immortal Clan
- Unparalled Sovereign
- Unparallel Worlds
- Unparalleled Affairs
- Unparalleled Emperor of Immortal World
- Unplanned Detour to Limbo
- Unpleasant Desires
- Unpleasant Stalker
- Unprojected Images
- Unquenchable Desires
- Unquiet
- Unquiet Land
- Unquiet Skies
- Unquiet Souls
- Unraptured
- Unravel the dusk
- Unravel the Dusk
- Unraveled Homecoming
- Unraveled in Space - A Sexy Romance Sci-Fi Short Story Featuring BDSM & Bondage from Steam Books
- Unraveled Together
- Unraveling (After The End #1)
- Unravelling
- Unreachable Skies
- Unreal
- Unreal Magazine: Vol. 1
- Unreal Magazine: Vol. 2
- Unreal Shadow
- Unreal World Dream
- Unrecoverable Error
- Unregistered
- Unremarkable
- Unremarkable & Other Stories
- Unrequited Death
- Unrest
- Unrewarded Love
- Unruly Magic (Book 2, Stella Mayweather Series)
- Unruly Souls: Three Tales of Portland
- Unruly Stunning Consort
- Unsafe, Unsound
- Unsavory: An Indigenous Horror Short Story
- Unscathed
- Unseelie Queen
- Unseen
- Unseen - Unfeared
- Unseen Beauty
- Unseen Bonds
- Unseen Demons
- Unseen Lord
- Unseen Magic