[3][4][5] GURPS Discworld was written by Phil Masters and Terry Pratchett; its cover and illustrations were done by Paul Kidby.

[10] The supplement covered recent events in the book series,[11] including details about the Unseen University.

[11] It also included the first detailed rules for mechanical semaphore telegraphy, based on the "clacks" network in the books.

[13] The original book was republished in 2002 by Steve Jackson Games with the GURPS Lite rules integrated throughout the text.

[7] A fourth edition adaptation of the Discworld was written, playtested, and laid out, but had trouble getting to market according to Steve Jackson Games' 2014 Stakeholder's Report.