Purpose-built system for solo and multiplayer mysteries enables flexible play options for any group size
Unique dice and card draw resolution mechanics allow for dynamic, chainable special actions and abilities
36 unique clues and 120 events provide a rich, evolving narrative experience
Self-contained story with unlimited possibilities ensures each session is fresh and engaging
Quickly builds unique characters at the table for personalized gameplay
Summarized by Shop
Descend. Learn. Survive.
The Substratum Protocol was created in the event that an emergency subterranean expedition was ever needed, coupled with the list of scientists, equipment, and procedures to ensure its success regardless of the nature of the emergency.
When the interdimensional portal appeared at the Earth’s core, the Substratum
Format
88-page full-color softcover or hardcover book
Recommended Age
12 years or older
Players
2-6
Material
Cardboard
Includes
Digital PDFs and physical book
Dimensions
A5 (softcover) or standard hardcover size
Summarized by Shop
5.0
10 ratings
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1
Was suprised by how much info is packed into a small book.