In Gary Gygax's 1986 novel Artifact of Evil, Melf is also known as Melf of the Arrow. He seems to acknowledge that Melf is not his real name, but says "it is a simple name, as good as any." Melf was one of the original player characters that explored Gary Gygax's dungeons of Castle Greyhawk. He was created by Gygax's son, Lucion Paul (Luke) Gygax.
The original modules Descent Into the Depths of the Earth and Shrine of the Kuo-Toa were both written by Gary Gygax and published by TSR, Inc. in 1978. Gygax had recently finished the Player's Handbook (1978), and according to Gygax, he authored the D series "as sort of a relaxation to get away from writing rules".
A natural 20 is a Dungeons & Dragons rule term for rolling a result of 20 on a 20-sided die, the maximum possible value, before any bonuses are applied. It is distinguished from a modified 20, which is a total result of 20 acquired by adding a bonus to a die roll lower than 20. Game rules in various editions of Dungeons & Dragons grant a special effect when the player rolls a natural 20. In ...
In the Dungeons & Dragons (D&D) role-playing game, the Dungeon Master (DM) is the game organizer and participant in charge of creating the details and challenges of a given adventure, while maintaining a realistic continuity of events.