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.

Two new booklets for DCC/MCC RPG: One is a 0-level funnel adventure on the dark side of the Purple Planet—featuring a new class: Sentient Robot. The other has over 100 encounters to add dimension to your RPG wilderness travels on the Purple Planet.