Substratum Protocol (softcover)

An anomaly at Earth's core threatens the planet, and the Substratum Expedition Team may be humanity's last chance. Play scientists descending through dangerous depths, collecting clues and studying unfamiliar creatures as they work toward a hypothesis that could avert catastrophe.

Substratum Protocol combines survival and mystery using step-down dice and card draws. Play alone or with a GM guiding 2–6 players. The investigation asks you to connect discoveries into an explanation rather than simply uncover a predetermined answer. This listing is for the softcover edition.

• Format: A5 88 page color softcover book