- Guardians of Paradise
- Guardians of the Crystals
- Guardians of the Crystals: Herculobus
- Guardians of the Crystals: The Osirion Connection
- Guardians of the Herald: Issues 1-45 Angels and Demons
- Guardians of the Herald: The Templars' Return
- Guardians Of the Shadows: Hands of Destiny
- Guernica Night
- Guerra al grande nulla (Urania)
- Guerra fratricida
- Guerra Fredda
- Guerra gelida
- Guerra Justa
- Guerra Navajo
- Guerra no Centro da Terra: A saga da humanidade- Livro 2
- Guerra no Centro da Terra: Ameaça Alienígena - Livro 3
- Guerra no Centro da Terra: Série completa
- Guerra no Centro da Terra: Um mapa, um tesouro, um portal e um segredo - Livro 1
- Guerre de Mirial (La)
- Guest House Izarra
- Guirlanden um Die Urnen der Zukunft
- Guirlanden um Die Urnen der Zukunft (Science-Fiction-Roman)
- Gullivar of Mars
- Gulliver of Mars
- Gulliver of Mars (Sci-Fi Classic)
- Gulliver Station: Box Set
- Gulliver Station: Hard Choices
- GULLIVER'S TRAVELS (Illustrated Edition)
- Gun Runner
- Gunfight on Europa Station
- Gunman's Peace
- Gunmetal Greys
- Gunmetal Sky
- Gunn Meets Blue
- Gunner: The Hacker's Code
- Gunpowder Empire
- Guns of Avalon
- Gunship (The Complete Series)
- Gunship: Chaotic Worlds
- Gunship: Graveyard
- Gunship: Reflections
- Gunship: Return of the Fear
- Gunship: The Afterworlds
- Gunship: The Blood War
- Gunship: The Fleet
- Gunship: The Great War
- Gunship: The Run
- Gunslinger Moon
- Gunslinger Moon: Tales from the Longview 4
- Gunslinger to Earth
- Gunslinger to the Galaxy
- Gunslinger to the Stars
- Gunwitch: Rebirth
- Gus
- Gusanos de Mutghar
- Gustave Le Rouge - Oeuvres
- Gwion, der Zauberer
- Générations - La légende de Broslann, tome II : Broslann
- Götterdämmerung über Asgard
- Głębia #1. Skokowiec
- Głębia #2. Powrót
- Głębia #3. Napór
- Głębia #4. Bezkres