Ernest Gary Gygax ( ; July 27, 1938 – March 4, 2008) was an American game designer and author best known for co-creating the pioneering tabletop role-playing game Dungeons & Dragons (D&D) with Dave Arneson.

In the 1960s, Gygax created an organization of wargaming clubs and founded the Gen Con tabletop game convention. In 1971, he co-developed Chainmail, a miniatures wargame based on medieval warfare with Jeff Perren. He co-founded the company TSR (originally Tactical Studies Rules) with childhood friend Don Kaye in 1973. The next year, TSR published D&D, created by Gygax and Arneson the year before. In 1976, he founded The Dragon, a magazine based around the new game. In 1977, he began developing a more comprehensive version of the game called Advanced Dungeons & Dragons. He designed numerous manuals for the game system, as well as several pre-packaged adventures called "modules" that gave a person running a D&D game (the "Dungeon Master") a rough script and ideas. In 1983, he worked to license the D&D product line into the successful D&D cartoon series.

Gygax left TSR in 1986 over conflicts with its new majority owner, but he continued to create role-playing game titles independently, beginning with the multi-genre Dangerous Journeys in 1992. He designed the Lejendary Adventure gaming system, released in 1999. In 2005, he was involved in the Castles & Crusades role-playing game, which was conceived as a hybrid between the third edition of D&D and the original version of the game.

In 2004, he had two strokes and narrowly avoided a subsequent heart attack. He was diagnosed with an abdominal aortic aneurysm and died in March 2008 at age 69. Following Gygax's funeral, many mourners formed an impromptu game event which became known as Gary Con 0, and gamers celebrate in Lake Geneva each March with a large role-playing game convention in Gygax's honor.

Early life and inspiration Gygax was born in Chicago, the son of Almina Emelie "Posey" Burdick and Swiss immigrant and former Chicago Symphony Orchestra violinist Ernst Gygax. He was named Ernest after his father, but was commonly known as Gary, the middle name given to him by his mother after the actor Gary Cooper. The family lived on Kenmore Avenue, close enough to Wrigley Field that he could hear the roar of the crowds watching the Chicago Cubs play. At age 7, he became a member of a small group of friends who called themselves the "Kenmore Pirates". In 1946, after the Kenmore Pirates were involved in a fracas with another gang of boys, his father decided to move the family to Posey's family home in Lake Geneva, Wisconsin, where Posey's family had settled in the early 19th century, and where Gary's grandparents still lived.

In this new setting, Gygax soon made friends with several of his peers, including Don Kaye and Mary Jo Powell. During his childhood and teen years, he developed a love of games and an appreciation for fantasy and science fiction literature. When he was five, he played card games such as pinochle and then board games such as chess. At age ten, he and his friends played the sort of make-believe games that eventually came to be called "live action role-playing games", with one of them acting as referee.Gygax, Gary (2005). Long Biography of E(rnest) Gary Gygax (revision 6-05) His father introduced him to science fiction and fantasy through pulp novels. His interest in games, combined with an appreciation of history, eventually led Gygax to begin playing miniature war games in 1953 with his best friend, Don Kaye. As teenagers, Gygax and Kaye designed their own miniatures rules for toy soldiers with a large collection of and figures, where they used "ladyfingers" (small firecrackers) to simulate explosions.

By his teens, Gygax had a voracious appetite for pulp fiction authors such as Robert E. Howard, Jack Vance, Fritz Leiber, H. P. Lovecraft, and Edgar Rice Burroughs. He was a mediocre student, and in 1956, a few months after his father died, he dropped out of high school in his junior year. He joined the Marines, but after being diagnosed with walking pneumonia, he received a medical discharge and moved back home with his mother. From there, he commuted to a job as a shipping clerk with Kemper Insurance Co. in Chicago. Shortly after his return, a friend introduced him to Avalon Hill's new wargame Gettysburg. Gygax was soon obsessed with the game, often playing marathon sessions once or more a week. It was also from Avalon Hill that he ordered the first blank hex mapping sheets available, which he then employed to design his own games.

About the same time that he discovered Gettysburg, his mother reintroduced him to Mary Jo Powell, who had left Lake Geneva as a child and just returned. Gygax was smitten with her and, after a short courtship, persuaded her to marry him, despite being only 19. This caused some friction with Kaye, who had also been wooing Mary Jo. Kaye refused to attend Gygax's wedding. Kaye and Gygax reconciled after the wedding.

The couple moved to Chicago where Gygax continued as a shipping clerk at Kemper Insurance. He found a job for Mary Jo there, but the company laid her off when she became pregnant with their first child. He also took anthropology classes at the University of Chicago.

Despite his commitments to his job, raising a family, and attending college, Gygax continued to play wargames. It reached the point that Mary Jo, pregnant with their second child, believed he was having an affair and confronted him in a friend's basement only to discover him and his friends sitting around a map-covered table.

In 1962, Gygax got a job as an insurance underwriter at Fireman's Fund Insurance Co. His family continued to grow, and after his third child was born, he decided to move his family back to Lake Geneva. Except for a few months he spent in Clinton, Wisconsin, after his divorce, and his time in Hollywood while he was the head of TSR's entertainment division, Lake Geneva was his home for the rest of his life.

By 1966, Gygax was active in the wargame hobby world and was writing many magazine articles on the subject. He learned about H. G. Wells's Little Wars book for play of military miniatures wargames and Fletcher Pratt's Naval Wargame book. Gygax later looked for innovative ways to generate random numbers, and used not only common six-sided dice, but dice of all five Platonic solid shapes, which he discovered in a school supply catalog.

Gygax cited as influences the fantasy and science fiction authors Robert E. Howard, L. Sprague de Camp, Jack Vance, Fletcher Pratt, Fritz Leiber, Poul Anderson, A. Merritt, and H. P. Lovecraft.

Wargames

In 1967, Gygax co-founded the International Federation of Wargamers (IFW) with Bill Speer and Scott Duncan. The IFW grew rapidly, particularly by assimilating several preexisting wargaming clubs, and aimed to promote interest in wargames of all periods. It provided a forum for wargamers via its newsletters and societies, which enabled them to form local groups and share rules. In 1967, Gygax organized a 20-person gaming meet in the basement of his home; this event was later called "Gen Con 0". In 1968, he rented Lake Geneva's vine-covered Horticultural Hall for $50 () to hold the first Lake Geneva Convention, also known as the Gen Con gaming convention. Gen Con is now one of North America's largest annual hobby-game gatherings. Gygax met Dave Arneson, the future co-creator of D&D, at the second Gen Con in August 1969.

Together with Don Kaye, Mike Reese, and Leon Tucker, Gygax created a military miniatures society called Lake Geneva Tactical Studies Association (LGTSA) in 1970, with its first headquarters in Gygax's basement. Shortly thereafter in 1970, Gygax and Robert Kuntz founded the Castle & Crusade Society of the IFW.

In October 1970, Gygax lost his job at the insurance company after almost nine years. Unemployed and now with five children he tried to use his enthusiasm for games to make a living by designing board games for commercial sale. This proved unsustainable when he grossed only $882 in 1971 (). He began cobbling shoes in his basement, which provided him with a steady income and gave him more time for game development. In 1971, he began doing some editing work at Guidon Games, a publisher of wargames, for which he produced the board games Alexander the Great and Dunkirk: The Battle of France. Early that same year, Gygax published Chainmail, a miniatures wargame that simulated medieval-era tactical combat, which he had originally written with hobby-shop owner Jeff Perren. The Chainmail medieval miniatures rules were originally published in the Castle & Crusade Society's fanzine The Domesday Book. Guidon Games hired Gygax to produce a game series called "Wargaming with Miniatures", with the initial release for the series being a new edition of Chainmail (1971). The first edition of Chainmail included a fantasy supplement to the rules. These comprised a system for warriors, wizards, and various monsters of nonhuman races drawn from the works of J. R. R. Tolkien and other sources. For a small publisher like Guidon Games, Chainmail was relatively successful, selling 100 copies per month.

Gygax also collaborated on Tractics with Mike Reese and Leon Tucker, his contribution being the change to a 20-sided spinner or a coffee can with 20 numbered poker chips (eventually, 20-sided dice) to decide combat resolutions instead of the standard six-sided dice. He also collaborated with Arneson on the Napoleonic naval wargame Don't Give Up the Ship!

Dave Arneson briefly adapted the Chainmail rules for his fantasy Blackmoor campaign. In the winter of 1972–1973, Arneson and friend David Megarry, inventor of the Dungeon! board game, traveled to Lake Geneva to showcase their respective games to Gygax, in his role as a representative of Guidon Games. Gygax saw potential in both games, and was especially excited by Arneson's role-playing game. Gygax and Arneson immediately started to collaborate on creating "The Fantasy Game", the role-playing game that evolved into Dungeons & Dragons.

Following Arneson's Blackmoor demonstration, Gygax requested more information from Arneson and began testing ideas for the game on his two oldest children, Ernie and Elise, in a setting he called "Greyhawk". This group rapidly expanded to include Kaye, Kuntz, and eventually a large circle of players. Gygax and Arneson continued to trade notes about their respective campaigns as Gygax began work on a draft. Several aspects of the system governing magic in the game were inspired by fantasy author Jack Vance's The Dying Earth stories (notably that magic-users in the game forget the spells that they have learned immediately upon casting them and must re-study them in order to cast them again), and the system as a whole drew upon the work of authors such as Robert E. Howard, L. Sprague de Camp, Michael Moorcock, Roger Zelazny, Poul Anderson, Tolkien, Bram Stoker, and others. The final draft contained changes not vetted by Arneson, and Gygax's vision differed on some rule details Arneson had preferred.

Gygax asked Guidon Games to publish it, but the three-volume rule set in a labeled box was beyond the small publisher's scope. Gygax pitched the game to Avalon Hill, but it did not understand the concept of role-playing and turned down his offer.

By 1974, Gygax's Greyhawk group, which had started off with himself, Ernie Gygax, Don Kaye, Rob Kuntz, and Terry Kuntz, had grown to over 20 people, with Rob Kuntz operating as co-dungeon-master so that each of them could referee smaller groups of about a dozen players.

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