Jeremiah
A post-apocalyptic RPG based on the graphic novel series by Hermann Huppen¸ and subsequent television series adapted by J. Michael Straczynski. It is set in the United States fifteen years after a mysterious disease called The Big Death wiped out everyone over the age of puberty. It is a complete game using variant of the D20 System of third editionD&D. The basic classes are Brainboy¸ Guardian¸ Jock¸ Mystic¸ Scavenger¸ Shepherd¸ Thief¸ Trader¸ and Wanderer. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim