A mega-dungeon that supports a full-year campaign. A legendary adventure considered by many to be one of the greatest of all time! Explore a thousand-year-old dungeon mystery waiting to be solved...

For the Shadowdark RPG! The derelict Temple of the Weaver imprisons Xatax the Shroud Spider, conjured by a heretical priest.

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.