He is best known for the d20 adventure series, Dungeon Crawl Classics and the Dungeon Crawl Classics Role Playing Game.

Joseph Goodman has worked as a professional in the gaming field since self-publishing The Dark Library in 1994,[1] a fanzine for his interest in miniatures games such as Warhammer 40k.

[2] Despite success with Broncosaurus Rex and then moving to fantasy dungeon crawls, Goodman did not hire any in-house game designers and worked with creators freelance instead.

[2] Goodman started publishing the Dungeon Crawl Classics line in 2003, with the intent to publish intelligent dungeon crawl adventures like those he enjoyed playing, and he wanted to serve the large part of the demographic market made up of older gamers.

[2] Goodman also developed the Dragonmech setting, which he released in 2004 under the Sword and Sorcery Studios imprint of White Wolf.