Prepare for the jungle rot! Tomb of Annihilation is gritty and gross. The Tomb of Annihilation PDF details the diseases and parasites. DMs use the digital rules to inflict misery on the characters. The book also provides the cure. The PDF details the magic and items that can save them. It also explains the "Death Curse." The digital guide helps the DM track the global stakes. It is the essential resource for a campaign that emphasizes survival and endurance.