- Gender: Artificial Intelligence
- Gene Mapper
- Gene Pool
- Gene Roddenberry's Andromeda: Destruction of Illusions
- Gene Roddenberry's Andromeda: The Attitude of Silence
- Gene Roddenberry's Andromeda: Through the Looking Glass
- Genecaust - Homeland
- Genecaust Homeland
- Genecode Illegal
- General of Draconis
- General Practice
- Generals Help Themselves
- Generals's Holiday
- Generation A
- Generation One
- Generation Warriors
- Generations Unbound
- Generator
- Genes Only Defence
- Genesis
- Genesis (Part One)
- Genesis 2.0
- Genesis Game
- Genesis On The Slavers Moon
- GENESIS PROJECT: Second Age of the Kasna: Abyss
- GENESIS PROJECT: Second Age of the Kasna: Broken
- GENESIS PROJECT: Second Age of the Kasna: Curse
- GENESIS PROJECT: Second Age of the Kasna: Hammer Fall
- GENESIS PROJECT: Second Age of the Kasna: Shards
- GENESIS PROJECT: Second Age of the Kasna: Survivors
- Genesis Sequence
- Genesis Space Book One: Ascent to Heaven: The Church of Man
- Genesis: The Rise of the Governor
- Geniuses, Qeeravs, and Saboteurs
- Genmate Forsaken
- Genmate Forsaken
- Genmate Imperiled
- Genmate Mistaken
- GenTech Rebellion, Books 1-3
- Gentleman Jole and the Red Queen
- Gentleman Jole and the Red Queen (Vorkosigan Saga)
- Genèse
- George Loves Gistla
- George MacDonald's Children's Fantasies and the Divine Imagination
- George the Long Road Home
- Georgia
- Geosynchron
- Germination (Zombies Are Human, Book Zero)
- GermLine
- Gesammelte Science-Fiction & Dystopie Romane (12 Titel in einem Band)
- Geschichten von den Jungen aus der Feldstraße
- Geschichten von den Kindern aus der Feldstraße
- Geschwängert vom Partner: ihr heimliches Baby
- Gespielin der Cyborgs
- GESTALT
- Gestrandet auf dem Methan-Planeten
- Get It Out of Me A Horror Novel
- Get Off My World
- Get Out of Denver
- Get Thee To a Nunnery
- Get With the Program
- Getarnte Aliens: Science Fiction Fantasy Großband 12/2020
- Getaway
- Gethyon
- Getting Lucky
- Getting to Bliss
- Gewalten der Unsterblichkeit
- Gewichte
- Ghazni's Gold
- GHOST
- Ghost
- Ghost Black
- Ghost Black Spaceship
- Ghost Company
- Ghost Dog
- Ghost Dragon
- Ghost Fleet
- Ghost In The Machine
- Ghost in the machine
- Ghost Legion
- Ghost of Mind Episode Five
- Ghost of Mind Episode Four
- Ghost of Mind Episode One
- Ghost of Mind Episode Seven
- Ghost of Mind Episode Six
- Ghost of Mind Episode Three
- Ghost of Mind Episode Two
- Ghost of the White Nights
- Ghost Platoon
- Ghost Probe
- Ghost Radio
- Ghost Run
- Ghost Ship
- Ghost Ships of Terra
- Ghost Soldiers (Star Crusades: Mercenaries, Book 2)
- Ghost Surveillance
- GHOST THREE
- Ghost Towns: The Runners series - Book 2
- Ghosteria 2: The Novel: Zircons May Be Mistaken
- Ghosting the Hero
- Ghostly Shadows
- Ghosts
- Ghosts Forever in the Stars