In the Cypher System, exploration and risk are everything. Players earn experience points not for killing monsters, but for making discoveries and facing unexpected challenges. You might rack up your XP between sessions, but most commonly you receive experience points during play, when events take an unexpected turn or you make a remarkable discovery. And XPs are useful in both the short- and long-term: spend 1 XP to reroll for yourself (or a friend), or save them up for character advancement! The Cypher System XP Deck gives you a set of tangible tokens to represent experience points. This 30-card deck is a simple but useful tool at the game table. - from the publisher's blurb