Science fiction gothic fiction blends the scale and imagination of speculative science fiction with the atmosphere, symbolism, and emotional darkness of gothic literature. These stories often explore sacred technology, collapsing empires, forbidden knowledge, cosmic isolation, and humanity’s search for meaning within vast and indifferent universes. Unlike sleek futuristic science fiction focused on progress and innovation, sci-fi gothic worlds are frequently ancient, ceremonial, and haunted by decay — filled with cathedral observatories, drifting monastery ships, cloaked astronomers, biomechanical saints, and dying stars illuminating ruined civilizations. This collection of 70 Sci-Fi Gothic Writing Prompts explores cosmic cathedrals, interdimensional gateways, aristocratic space empires, ritualistic AI, sacred astronomy, and forgotten worlds suspended between science and mythology.