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Substratum Protocol

A Game System for Foundry Virtual Tabletop

Author: SmokeRaven667 Project: Source Foundry Versions 13+ (Verified 14) Last Updated 1 hour, 15 minutes ago

An unofficial Foundry VTT system for Substratum Protocol, the Solo+ Mystery TTRPG of apocalyptic descent and Anomaly investigation published by Pandion Games. Built on the step-down-dice, card-draw resolution of the Breathless/Firelights lineage — low-prep, low-crunch, and designed to run solo.

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Actor and Item Sheets Journals and Notes

Available Versions

  1. Version 0.5.0

    1 hour, 15 minutes ago
    Foundry Version 13+ (Verified 14) Manifest URL Read Notes