The idea behind 20 Strong is a small nucleus of simple, adaptable rules that can then be applied to a variety of unique decks, each with their own set of mechanics.   The object of a game of 20 Strong is to progress through a shuffled deck of cards, each card bearing a unique challenge. This challenge could be in the form of an enemy, a unique scenario, or some other requirement (for example, players of the Too Many Bones deck might expect to see a Lockpicking challenge or two). Challenges usually require a certain number of successes to complete, which you earn by rolling a set of 17 dice with different odds for a hit (these dice, along with three adjustable stat dice, make up the “20” in 20 Strong).   If you roll enough successes, you complete a card’s challe..