There are several forms of RPG. The original form, sometimes called the tabletop RPG (TRPG), is conducted through discussion, whereas in live action role-playing games (LARP) players physically perform their characters' actions. In both of these forms, an arranger called a game master (GM) usually decides on the rules and setting to be used, acting as referee, while each of the other players plays the role of a single character.
Despite this variety of forms, some game forms such as trading card games and wargames that are related to role-playing games may not be included. Role-playing activity may sometimes be present in such games, but it is not the primary focus.
The term is also sometimes used to describe roleplay simulation games and exercises used in teaching, training, and academic research.
