Substratum Protocol
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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 is playable as both a solo game or guided by a GM for 2-6 players.
With players taking on the role of Earth's best remaining scientists¸ Substratum Protocol is our entry into the Deep Delving Mystery genre (like Subnautica and In Other Waters).
On their grueling journey to the center of the Earth¸ members of the Substratum Expedition will overcome challenges¸ gain clues and knowledge of the anomaly¸ discover creatures¸ aliens¸ cosmic horrors¸ and ultimately assemble their final hypothesis to overcome the apocalypse looming before them. The game intertwines hard science fiction with the inescapable¸ unknowable horrors of an anomaly tearing apart reality.
- Purpose-built for solo and multiplayer mysteries
- Unique dice and card draw resolution mechanics
- Take special Actions whose outcomes can chain together
- Collect cards during Skill Checks to power your suit's abilities
- A self-contained story¸ with unlimited possibilities and outcomes
- Quickly build unique and interesting characters at the table
- 36 unique clues to discover¸ 36 questions to answer
- 10 sectors to explore¸ each one stranger than the last
- 120 events and encounters to surprise and stump your players
- Build the Last Hypothesis: When they have learned all they can¸ the scientists must pour over their knowledge of the anomaly¸ construct the Last Hypothesis and enact their plan. Will it be enough?