From publisher blurb: Wretched things dwell in damp and dark places. Sometimes they are too small to even see! Rot, Pox, and Worm for Year Zero Engine includes 26 all new diseases to inconvenience adventurers or to bring ruinous plot hooks to your campaign. They are designed to run the gamut of sicknesses and mechanical impacts on characters to enrich the struggles and triumphs of you characters, ranging from mundane, to dangerous, to outright deadly if left to fester.