TSR

Tactical Studies Rules (TSR) was formed in 1973 as a partnership between Gary Gygax and Don Kaye, who collected together $2,400 for startup costs, to formally publish and sell the rules of Dungeons & Dragons, the creation of Gary Gygax and Dave Arneson and the first modern role-playing game (RPG). The first TSR release, however, was Cavaliers and Roundheads, a miniature game, to start generating income for TSR. The partnership was subsequently joined by Brian Blume and (temporarily) by Arneson. Blume was admitted to the partnership to fund further publishing of D&D instead of waiting for Cavaliers and Roundheads to bring in enough revenue. In the original configuration of the partnership, Kaye served as President, Blume as Vice-President, and Gygax as Editor.