Survive the jungle, stop the curse. Tomb of Annihilation is a survival horror campaign for D&D. The Tomb of Annihilation PDF is the rulebook for this harsh reality. It details the dehydration mechanics and the diseases. DMs need the digital tables to apply these rules quickly. The book also provides the map of Chult. The PDF allows the DM to track the party's progress through the hexes. It also details the random encounters that make the travel dangerous. The digital guide is essential for maintaining the gritty, desperate tone of the adventure.