Tactical Studies Rules (TSR): The Genesis of Dungeons & Dragons and Fantasy Gaming Tactical Studies Rules, Inc. – often abbreviated TSR – stands as a pivotal figure in the history of tabletop role-playing games (TTRPGs), specifically credited with launching the phenomenon that is Dungeons & Dragons. Founded in October 1973 by Gary Gygax and Don Kaye in Geneva, Switzerland, TSR wasn’t merely a publisher; it was an incubator for innovation—a testament to the power of collaborative creativity and unwavering determination. The company's initial mission was ambitious: to bring Dave Arneson’s grou…