...about gathering at a table with your friends and creating an improvisational story, where one of you plays the GM, who has narrative authority over the world and events, and the rest of you play characters being challenged by and exploring this world. Though, there are clear prompts for the players to create parts of the world as well.
The players' goal is to build their characters up to be forces to be reckoned with, while the GM earns points by hitting the milestones of The Hero's Journey.