The Substratum Protocol has been triggered!
A solo or multiplayer role-playing game to prevent a planetary catastrophe.
When a mysterious Anomaly appeared at the center of the Earth, the Substratum Protocol was set in motion.
The planet's top scientists were brought together at the emergency-built Rift Observatory, where a crucial mission was coordinated: the Substratum Expedition.
Find clues, understand what's going on, survive your descent to the center of the Earth and avert the Apocalypse.
The fate of the world is in your hands.
Expedition Substratum blends science fiction with the inescapable, unknown horror of an anomaly tearing reality apart.
- Designed for single-player and multiplayer mysteries
- Unique card- and dice-drawing resolution mechanisms
- Perform special actions whose results can be chained together
- Collect cards during skill tests to enhance your costume's abilities.
- A self-contained story with unlimited possibilities and results
- Quickly create unique and interesting characters at the table.
- 36 unique clues to discover, 36 questions to solve
- 10 areas to explore, each stranger than the last
- 120 events and encounters to surprise and unsettle your players
- Build the final hypothesis: Once they'd learned all they could, the scientists
