John Dailey's Dungeon Master is a unique online RPG (Roll-Playing Game) that allows a sysop to “plug” in an almost unlimited number of adventurers, or games known as game modules. In order to understand this completly, think of the Dungeon Master game itself as a home game entertainment system, with each game module being like a game cartridge that you'd plug into the system to play. There is no limit the the number of different adventures, graphic displays, or sounds available to the system itself.

The Dungeon Master game environment is simple enough for new RPG game players to understand, while at the same time, being challenging enough for the more seasoned player.