I cannot say about dungeons and dragons. Only that there is someone with the role of game master. They decide the rules and act as a referee while others play their single characters.
Yes, there's a game master that decides on the rules.
I love role playing. Do you know anything about that? People act out roles with a narrative through character development Yes that is true. Can you tell me more about it? The original, known as tabletop, is mainly conducted through discussion. What kind of tabletop roleplaying exists? Is that like dungeons and dragons?
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.