A modern horror RPG sparkbook inspired by the lyrics of Radiohead. Discover twisted characters, existential horrors, strange environments, signs of the end times, and more. Just roll three six-sided dice to unlock new terrors.

Beautiful spaceship pins from An Infinity of Ships.

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.