Game Master

American  

[geym mas-ter, mah-ster] / ˈgeɪm ˌmæs tər, ˌmɑ stər /

noun

1. Games. GM

   1. the person who organizes or directs the story or play in a tabletop game, as a role-playing game.

   2. (in anMMORPG ) an employee representative of the game developer who maintains a presence in the online game and may be called by players to resolve technical issues, enforce terms of service, etc..

      If someone is being abusive or harassing you, just report him to a Game Master.

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Etymology

Origin of Game Master

First recorded in 2000–05

Example Sentences

Fakonas and Buscher ended up winning after five rounds, beating out rival teams by having what the game master calculated was the highest market capitalization.

From The Wall Street Journal • Jan. 1, 2026

It’s self-guided, meaning no need for a game master, and is a separate entity from “Code Green.”

From Los Angeles Times • Nov. 26, 2024

Connie Chang, a 24-year-old game master who runs “a semi-Tumblr-famous D&D meme blog,” is the GM of Transplanar, “a non-colonial, anti-Orientalist” livestreamed game consisting entirely of players who are transgender and people of color.

From Seattle Times • May 22, 2022

It’s a choose-your-own-adventure game, with Ms. Huppert cast as a devious game master.

From New York Times • Sep. 30, 2020

Now, AI Dungeon is available on iOS and Android as well, making it much easier to explore fantasy and sci-fi realms with an AI game master.

From The Verge • Dec. 17, 2019