In the fall of 1972,
Dave Arneson, a
wargamer from nearby
Minneapolis-St. Paul, demonstrated a new type of
role-playing game to the LGTSA. Gygax then created a similar game set in the imaginary
Castle Greyhawk, and invited his children, Ernie and Elise, "to create characters and adventure". The next evening, Kaye joined the game along with Gygax's friends
Rob Kuntz and
Terry Kuntz. Kaye observed as a group eagerly played the prototype
Dungeons & Dragons game at
Gen Con VI (1973), and brought the idea to Gygax of starting a company so that they could publish the game on their own. which was initially run with business taking place in Kaye's dining room. Their investment of $2000 was not enough to print their new role-playing game, so they instead published
Cavaliers and Roundheads, a miniatures game based on the
English Civil War, and planned to use its revenue to print and publish
D&D. But sales were poor, and they still did not have enough capital to publish
Dungeons & Dragons. While developing D&D, Gygax had sent copies of his preliminary rules to other wargaming friends for playtesting. Now worried that someone who had playtested the new type of game would bring a similar product to the market first, the two accepted an offer in December 1973 by playing acquaintance
Brian Blume to invest $2000 in TSR to become an equal one-third partner. In January 1974, they printed a thousand copies of the game and hand-assembled them in the basement of Gygax's house. In late 1974, Kaye helped develop some of the rules for a new Western-genre game to be called
Boot Hill. ==Death and legacy==