by Richard Bartle (richard@mud.co.uk) [1] , MUSE Ltd, Colchester, Essex, United Kingdom
[1] This paper is an April 1996 extension of an earlier article, "Who Plays MUDs" (Bartle, 1990a). As a result of this, and of the fact that I am not a trained psychologist , do not expect a conventionally rigorous approach to the subject matter.
Permission to redistribute freely for academic purposes is granted provided that no material changes are made to the text.
Used by permission of Dr. Bartle and The Journal of Virtual Environments (www.brandeis.edu/pubs/jove/).