Substratum Protocol is available at our store! https://pandiongames.com/substratum
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Substratum Protocol

Created by Pandion Games

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.