Solo and multiplayer modes: Offers flexible gameplay for both individual and group sessions
Step down dice and card draw mechanics: Enables dynamic, skill-based actions and abilities
36 unique clues and 36 questions: Deepens immersion and encourages player exploration
10 sectors to explore: Provides a vast, interconnected narrative landscape
Self-contained story with unlimited outcomes: Ensures each session feels fresh and engaging
Summarized by Shop
When the anomaly appeared at the Earth's core, the Substratum Protocol was initiated. You are the best and brightest scientists we have left, our last hope to stem the apocalypse. You are the Substratum Expedition Team. Descend. Learn. Survive. A solo+ survival mystery RPG using step-down dice and card draw mechanics, Substratum Protocol