Walter Milliken ran the GURPS Digest on the internet, which was among the first specialized discussion lists of this type.
In a lawsuit that received national attention and led to the establishment of the Electronic Frontier Foundation, Milliken and Steve Jackson successfully sued the United States Secret Service in 1993 for illegally seizing computers and electronic information.
Walter Milliken is the co-author of GURPS Illuminati University, and contributor to many GURPS books. There is a list of his other work at www.pen-paper.net (archive). He is married to his frequent co-author, Elizabeth McCoy.
- Shannon Appelcline (2011). Designers & Dragons. Mongoose Publishing. p. 319. ISBN 978-1-907702-58-7.
- Hawkins, Lori (May 7, 1994). "Austin game maker gets money over illegal seizure: Secret Service had violated Electronic Communications Privacy Act". Austin American-Statesman. p. B1.
- Abernathy, Joe (May 4, 1991). "Suit says rights abused in computer crackdown". Houston Chronicle. p. 29.