- First Contact Captives: Kronos
- First Contact Captives: Vidar (A Purple Alien Sci-Fi Romance)
- First contact war
- First Contact War
- First Contact: A Sector 64 Prequel Novella
- First Contacts
- First Contacts: Tales From The Vintage Years of Science Fiction
- First Dawn
- First Dawn Book One in the Lost Millennium Trilogy
- First Dawn: First Novel of the Lost Millenium Trilogy
- First Deployment
- First Dive
- First Dragon
- First Fall
- First Glimpse
- First Heat
- First Labradoodle on Mars
- First Law of Attrition
- First Lensman
- First Lensman (Serapis Classics)
- First Meetings: A Martiniere Legacy Short Story
- First Meetings: In The Enderverse
- First Mission
- First on the Moon
- First Shadow
- First Shift: Legacy
- First Stage: Moon
- First Strike
- First Strike: Rise of the ShadowKin
- First there was Fear
- First To Fight
- First-Person Singularities
- Firstborn
- Firsts
- Fish Out of Water: A Guppy Anthology
- Fish Tails
- Fishpunk
- Fissure of Worlds
- Fit to Print
- Fitting In
- Five Doses
- Five Epic Space Opera Novels: Feral Planet, Dome Of Slavery, Final Battle, In Search Of Kronos, Amir...
- Five Fantastic Stories
- Five Minds
- Five Moons Entangled
- Five Moons Rising
- Five Moons: Convolute
- Five Moons: Nexus of Fates
- Five Moons: Resurrection
- Five Moons: Revolution
- Five Moons: Zep Tepi
- Five Steps to Tomorrow
- Five Stories Up
- Five Thousand Miles Underground
- Five Weeks in a Balloon
- Five Years for Heartache
- Five-Twelfths of Heaven: Book One of the Roads of Heaven
- Fixer Redux
- Fixit Adventures Anthology
- Fièvre Cyborg
- Fjärde Fragmentet - Marmortronen
- Fjärilarnas stad
- FLAC 7
- Flag in Exile
- Flair
- Flame
- Flame: A Qurilixen World Novella
- Flames of Power
- Flames of Rebellion
- Flames of Redemption
- Flames of the Sun
- Flames of War (Star Crusades: Mercenaries, Book 3)
- Flaming Arrow
- Flammende Scherben
- Flammenzeit
- Flammor av vrede
- Flandry of Terra
- Flandry's Legacy
- Flare Shifter (Prequel Novella)
- Flare: Team Corona
- Flash
- Flash Back (Portland Plague – Vol. 2)
- Flash Fire
- Flash in the Can
- Flash Point
- Flashback
- FlashBack
- Flashback Dawn
- Flashback Dawn (A Serialized Novel), Part 3: "The Red-Eye Shift"
- Flashback Dawn (A Serialized Novel), Part 4: "Charlotte"
- Flashback Dawn (A Serialized Novel), Part 6: "Throw Wide the Gates of Hell"
- Flashback Dawn (A Serialized Novel), Part 7: "Generation Zero"
- Flashback Dawn: "The Children's Reich"
- Flashback Dawn: "The Devil's Shambhala"
- Flashback Dawn: It Begins
- Flashback Dawn: The Complete Series, Illustrated
- Flashback Forward
- Flashback Twilight
- Flashing Dark
- Flashpoint
- FLATLAND (Illustrated)
- Flatland: A Romance of Many Dimensions
- Flatland: A Romance of Many Dimensions (Illustrated Edition)
- Flatlander
- Flatline
- Flawed Gods
- Flawed Gods Omnibus
- Flawed Machines
- Fledgling
- Fleet 1
- Fleet 2
- Fleet Elements
- Fleet Inquisitor
- Fleet Insurgent
- Fleet of Stars
- Fleet Of The Damned
- Fleet of the Damned (Sten #4)
- Fleet of Worlds
- Fleet Renegade
- Fleeting Alliances
- Flesh & Blood
- Flesh Eaters
- Flesh for Sale (Second in the Fleet Quintet)
- Flesh Ravenous: Zombie Survival -Volume 1
- Flesh: A Short Story
- Fleshers
- Fleshgone
- Fletcher
- Flickan från Terra
- Flickan med gåvorna
- Flickan som inte kunde säga nej: Ljusets rike 3
- Flight
- Flight from Neveryon
- Flight from Rebirth
- Flight of MAN... Book Two: Saturn's Vanguard
- Flight of Man: The EDEN SOLDIERS - Book One of a Trilogy
- Flight of the 500
- Flight of the Armada Book XV A Voice From The Stars
- Flight of the Blackbird
- Flight of the Dying Sun
- Flight Of The Feathered Serpent
- Flight of the Ko
- Flight of the Valkyrie
- Flight Plan