Question: What is the name of the American game designer who co-developed Dungeons & Dragons Basic Set and who developed the concept of the RPG?
Sentence (from "Dave Arneson"): Arneson's early work was fundamental to the development of the genre, developing the concept of the RPG using devices now considered to be archetypical, such as adventuring in "dungeons" and using a neutral judge who doubles as the voice and consciousness of all other characters to develop the storyline.
Relevant evidence: No