One of the biggest draws of RPGs is the way they let players take on new identities that extend into the utterly fantastical. Whether that's as an explorer charting a huge, impossible world, or as a mage practicing the dark arts, roleplaying games are so popular today, both on the screen and on the table, because of their capacity to immerse players in new worlds. For many games, this usually means giving players a set of mechanics they can use to interact with the world.