TSR

The basement enterprise that turned a set of self-published wargame rules into Dungeons & Dragons and, in less than a decade, the cornerstone of the tabletop role-playing industry.

The letters TSR in a stylized company logo
The TSR corporate logoPublic domain (used under fair use), via Wikipedia

TSR was an American game publishing company, best known as the original publisher of Dungeons & Dragons, the game generally credited as the first modern tabletop role-playing game.149 Founded in 1973 in Gygax’s hometown of Lake Geneva, Wisconsin, the company grew from a home-brew publishing venture in a basement into a corporation with hundreds of employees before financial troubles led to its acquisition by Wizards of the Coast in 1997.814

Founding as Tactical Studies Rules

The company originated in the games of Gary Gygax, a former insurance underwriter and shoe repairman who had co-written the miniatures wargame Chainmail with Jeff Perren, published by Guidon Games in 1971.97 To his surprise, inquiries about Chainmail focused on the fantasy supplement he had added in the second edition, and this fantasy interest, combined with Dave Arneson’s dungeon-exploration scenarios, led the two to collaborate on what they called “The Fantasy Game,” eventually renamed Dungeons & Dragons.97 Unable to find a publisher, Gygax persuaded his boyhood friend and fellow gamer Don Kaye to borrow $1,000 against his life insurance, and in October 1973 the two formed a partnership called Tactical Studies Rules to self-publish the game.914

The partnership’s first release was not D&D but Cavaliers and Roundheads, a miniatures wargame published to generate income.914 In January 1974 the partners were joined by another gamer, Brian Blume, who invested an additional $2,000 and became an equal one-third partner; in the original configuration Kaye served as president, Blume as vice-president, and Gygax as editor.914 That same month, with Gygax’s basement as its headquarters, the partnership produced 1,000 copies of Dungeons & Dragons, sold at $10 each with the extra dice priced at $3.50, and the first print run sold out in ten months.149

Kaye died of a heart attack on January 31, 1975.914 His widow, Donna Kaye, took over accounting and shipping through the summer, after which the duties became complex enough that Gygax became a full-time employee to assume them.14

TSR Hobbies, Inc.

In 1975 the Tactical Studies Rules partnership dissolved and a new company, TSR Hobbies, Inc., was formed, buying out Kaye’s widow and accepting investment from Brian Blume’s father, Melvin.714 Gygax initially controlled roughly 60% of the shares, but the cost of buying out Mrs. Kaye and extreme cash shortages forced the sale of further shares to Brian and Melvin Blume, reducing Gygax’s interest to about 35% by the fall of 1976 and thereafter to around 30%.10 Melvin Blume eventually transferred his shares to his other son, Kevin, making the two Blume brothers the largest shareholders in the company.14

With D&D as its main product, TSR Hobbies became a major force in the games industry by the late 1970s.14 The company published Empire of the Petal Throne as its first non-D&D game product in 1975, followed by the Greyhawk and Blackmoor supplements, the Dungeon! board game, and the Wild West role-playing game Boot Hill.7 In 1976 it began publishing The Dragon magazine, the first professional periodical devoted to fantasy and science fiction gaming, and hosted the Gen Con Game Fair for the first time.7 The following year it released the Monster Manual, described as the first hardbound book ever published by a game company, containing more than 350 monsters.712

The Advanced Dungeons & Dragons version of the game was released beginning in 1978 with the Player’s Handbook, followed by the Dungeon Master’s Guide in 1979.712 During this period the company moved from Gygax’s old gray house into downtown Lake Geneva above the Dungeon Hobby Shop, and in late 1978 took over the closed Hotel Clair at 772 West Main Street as its fourth headquarters, whose former bowling-alley basement housed gaming and inventory while officers and the design, development, editing, art, and production departments occupied the upper floors.71 Titles developed there included the Dungeon Master’s Guide, Deities & Demigods, the World of Greyhawk, the espionage game Top Secret, the science-fiction game Star Frontiers, and adventures such as The Ghost Tower of Inverness and White Plume Mountain.1

TSR’s growth in this period was rapid. Founded in a basement in 1973 and incorporated in 1975, the company had revenues of $12.9 million and a payroll of 130 in the fiscal year ending June 30, 1981, projecting $27 million and 170 employees for fiscal 1982.9 Its original investment of $3,000 had grown to $3.5 million by December 1981, and Inc. magazine ranked TSR Hobbies sixth on its list of fast-growing privately held companies in the United States.97 By the time of Gygax’s later account, Tactical Studies Rules had gone from a basement enterprise to a thriving corporation with some 600 employees in less than a decade, and D&D had sold millions of copies, translated into more than a dozen languages and sold in 50 countries.812

Early TSR logo with interlocking initials
The original Tactical Studies Rules logo, formed from the entwined initials of founders Gary Gygax and Don KayeFair use (used under fair use), via Wikipedia

The game’s public profile grew alongside a media controversy. When Michigan State University student James Dallas Egbert III went missing in the campus steam tunnels in 1979, a private investigator surmised he had become lost acting out Dungeons & Dragons fantasies, an idea that spread through the popular press and became a long-standing urban legend even though Egbert had in fact gone into the tunnels intending suicide.6 In 1981 TSR wielded its financial strength across the wider industry, lending the wargame publisher SPI more than $400,000 against its assets and intellectual properties, then calling the note within about two weeks and effectively foreclosing on the company.2

Reorganization, ouster of Gygax, and Williams era

By the early 1980s Gygax had been boxed out of running the company. The board of directors consisted of Gygax and the two Blume brothers, who between them voted about 60% of the shares against Gygax’s roughly 30%, and a reorganization installed Brian Blume as “President of Creative” and Kevin Blume as “President of Operations” nominally beneath Gygax as president.105 In 1982 Gygax was sent to California to set up a new corporation, renamed Dungeons & Dragons Entertainment Corp., which produced the Dungeons & Dragons animated series that debuted on CBS in 1983 and led its time slot for two years.512

TSR Hobbies ran into severe financial difficulties in the spring of 1983, prompting the company to split into four independent businesses, with game publishing and development continuing as TSR, Inc..14 Returning to Lake Geneva in the winter of 1984 to find the bank threatening bankruptcy over some $1.5 million in debt, Gygax led an effort that removed Kevin Blume as CEO in a board vote and rushed Unearthed Arcana and Oriental Adventures into print, turning the corner by April 1985.510 In 1985 Gygax exercised a stock option to gain a bare majority, but the Blume brothers sold their shares—together with additional shares secretly acquired by option—to TSR Vice President Lorraine Williams, giving her majority control.105 Gygax sued to block the transfer, arguing a corporate buy-sell agreement prohibited it, but the local judge ruled against him, and he agreed to sell his own shares and leave the company at the end of 1985.1014

TSR saw prosperity under Williams but by 1995 had fallen behind its competitors in overall sales.14 According to Gygax, his own game Dangerous Journeys, which TSR sued him over after his departure, produced a costly settlement that helped drive the company under; by the time of the Wizards of the Coast acquisition, TSR was reported to be more than $30 million in debt.510 Facing insolvency, TSR was purchased in 1997 by Wizards of the Coast, creators of the Magic: The Gathering trading card game.1412 Wizards of the Coast initially retained the TSR name for its D&D products, but dropped it by 2000, coinciding with the release of the third edition of Dungeons & Dragons.1412

The company was headquartered throughout its history in Lake Geneva, Wisconsin, and formed a British subsidiary, TSR, Ltd., in 1980 to meet growing international demand.147

Sources

1www.gygaxmemorialfund.org

Information about Hotel Clair, the fourth headquarters of TSR Hobbies in Lake Geneva, where major D&D products were developed from 1978 to 1984.

gygaxmemorialfund.org · retrieved Jul 4, 2026
2grognard.com

Redmond Simonsen's account of the financial and management failures that led to the collapse of Simulations Publications Inc., a major board wargame publisher.

grognard.com · retrieved Jul 4, 2026
5pc.gamespy.com

GameSpy interview with Gary Gygax discussing his departure from TSR and subsequent gaming projects after the company's founding.

pc.gamespy.com · retrieved Jul 4, 2026
6pc.gamespy.com

History of the James Dallas Egbert III missing person case and how media misreporting linked his disappearance to D&D, creating a lasting urban legend.

pc.gamespy.com · retrieved Jul 4, 2026
7web.archive.org

Timeline of TSR company milestones and D&D game releases from 1966 through the early 1980s.

web.archive.org · retrieved Jul 4, 2026
8web.archive.org

Wired magazine memorial article profiling Gary Gygax's life, his creation of D&D, and his lasting impact on gaming culture.

web.archive.org · retrieved Jul 4, 2026
9web.archive.org

Inc. magazine article from 1982 examining TSR Hobbies as a successful fast-growing company using game-based management techniques.

web.archive.org · retrieved Jul 4, 2026
12web.archive.org

D&D frequently asked questions and history covering the game's origins, publication timeline, and editions through the third edition.

web.archive.org · retrieved Jul 4, 2026
14TSR, Inc. - Great Library of Greyhawk

Overview of TSR, Inc.'s history from founding through its acquisition by Wizards of the Coast in 1997.

greyhawkonline.com · retrieved Jul 4, 2026

Lineage / Influences

Influenced by

short*D&D* grew directly out of Gygax’s miniatures wargame and its fantasy supplement

Influenced

longTSR’s game established the modern tabletop role-playing genre
Written and cited by Lemma. Every claim above is tied to a source in the margin — follow them to verify. Generated reference text; check the sources before relying on it.