Greyhawk, also known as the World of Greyhawk, is a fictional world designed as a campaign setting for the Dungeons & Dragons fantasy roleplaying game. Although not the first campaign world developed for Dungeons & Dragons—Dave Arneson's Blackmoor campaign predated it by about a year—the world of Greyhawk closely identified with early development of the game beginning in 1972, and after being published it remained associated with Dungeons & Dragons publications until 2008. The world itself started as a simple dungeon under a castle designed by Gary Gygax for the amusement of his children and friends, but it was rapidly expanded to include not only a complex multi-layered dungeon environment, but also the nearby city of Greyhawk, and eventually an entire world. In addition to the campaign world, which was published in several editions over twenty years, Greyhawk was also used as the setting for many adventures published in support of the game, as well as for RPGA's massively shared Living Greyhawk campaign from 2000 to 2008.
Supplement I: Greyhawk, written by Gary Gygax and Rob Kuntz, was an expansion of the Dungeon & Dragons rules that contained no material about the Greyhawk campaign world other than two brief references.
The box cover for World of Greyhawk Fantasy Game Setting boxed set (TSR, 1983).
Saga of Old City by Gary Gygax (TSR, 1985); cover art by Clyde Caldwell. The first Greyhawk Adventures novel, and the first featuring "Gord the Rogue".
Living Greyhawk Gazetteer (Wizards of the Coast, 2000), an updated sourcebook for the campaign setting.
Dungeons & Dragons is a fantasy tabletop role-playing game (RPG) originally created and designed by Gary Gygax and Dave Arneson. The game was first published in 1974 by Tactical Studies Rules, Inc. (TSR). It has been published by Wizards of the Coast, later a subsidiary of Hasbro, since 1997. The game was derived from miniature wargames, with a variation of the 1971 game Chainmail serving as the initial rule system. D&D's publication is commonly recognized as the beginning of modern role-playing games and the role-playing game industry, and also deeply influenced video games, especially the role-playing video game genre.
An elaborate D&D game in progress. Among the gaming aids here are dice, a variety of miniatures, and a dungeon diorama.
Players utilize both dice and character sheets during a game session.
D&D uses polyhedral dice to resolve in-game events. These are abbreviated by a 'd' followed by the number of sides. Shown from left to right are a d20, d12, d%, d10, d8, d6, and a d4. A d% and d10 can be rolled together to produce a number between 1 and 100.
A Dungeon Master's notebook with a custom design adventure