Dave Arneson

David Lance Arneson (/ˈɑːrnɪsən/; October 1, 1947 – April 7, 2009) was an American game designer best known for co-developing the first published role-playing game (RPG), Dungeons & Dragons, with Gary Gygax, in the early 1970s. Arneson's early work was fundamental to the role-playing game (RPG) genre, pioneering devices now considered to be archetypical, such as cooperative play to develop a storyline instead of individual competitive play to "win" and adventuring in dungeon, town, and wilderness settings as presented by a neutral judge who doubles as the voice and consciousness of all characters aside from the player characters.