noun
dungeon master; DM; game master; GM
Refers to the player who runs a tabletop role-playing game, controlling the story and non-player characters. Common in Japanese TRPG culture.
今度のセッションでは僕がダンジョンマスターをやるよ。
I'll be the dungeon master for the next session.
ダンジョンマスターが用意したシナリオはとても面白かった。
The scenario the dungeon master prepared was really interesting.