GURPS Discworld

GURPS Discworld and the related supplements are role-playing game sourcebooks set in Terry Pratchett's "Discworld" fantasy universe using the GURPS role-playing game system. GURPS Discworld was designed by Phil Masters (in collaboration with Pratchett) and first published in 1998.
Contents.
The game included a lot of detail about Discworld, appealing to both roleplaying and Discworld fans. It has also been attributed to introducing roleplayers to the series of Discworld books.
Publication history.
"GURPS Discworld" was written by Phil Masters and Terry Pratchett; its cover and illustrations were done by Paul Kidby. It was published by Steve Jackson Games in 1998. "GURPS Discworld" was the first book to include "GURPS Lite" in it. The "GURPS Lite" rules were included as an appendix, meaning it was not necessary to purchase "GURPS Basic" in order to play.
In March 2001, Steve Jackson Games published a sequel under the title "GURPS Discworld Also". It was written by Phil Masters, again with the assistance of Terry Pratchett. Cover and illustrations were done by Sean Murray. The supplement covered recent events in the book series, including details about the Unseen University. Among the scenarios included is "EckEckEcksEcksian Cart Wars", based on the "Mad Max" parody segments of "The Last Continent" and Steve Jackson Games' own "Car Wars" and "GURPS Autoduel" setting. It also included the first detailed rules for mechanical semaphore telegraphy, based on the "clacks" network in the books.
The original book was republished in 2002 by Steve Jackson Games with the "GURPS Lite" rules integrated throughout the text. The title was changed from "GURPS Discworld" to "Discworld Roleplaying Game" to reinforce its stand-alone capabilities. Illustrations were once again done by Paul Kidby. Later publications, including the second edition of "Discworld", were labelled "Powered by "GURPS" without including "GURPS"" in the book title, primarily to make it easier for fans to find the books at mass-market retailers.
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. It was finally released in December 2016.