The typical gameplay structure of a megagame is one in which dozens of players compete or cooperate within a set of tabletop and role-playing games. Individual players are typically members of small teams, and must interact with both the game's systems as well as other participating players. Megagames can encompass a wide range of different settings, scenarios, and rules, including military, historical intrigue, and alien invasions. Jim Wallman, designer of
Watch the Skies, describes the rules of megagames as a "framework", from which the game's designers and referees (known as "control members") can make rulings on the fly, like a
Dungeon Master. During the course of the game, referees might announce rule clarifications or new events, and often have to create new rules to respond to player desires. == See also ==