"APOLIS -- Dave Arneson, one of the co-creators of the Dungeons & Dragons fantasy game and a pioneer of role-playing entertainment, died after a two-year battle with cancer, his family said Thursday. He was 61.
Arneson and Gary Gygax developed Dungeons & Dragons in 1974 using medieval characters and mythical creatures. The game known for its oddly shaped dice became a hit, particularly among teenage boys. It eventually was turned into video games, books and movies. Gygax died in March 2008." - The Huffington Post