Gopher MOO is a MUD that talks to gopherspace (acts as a gopher client). It's the gopher client described in ftp://parcftp.xerox.com/pub/MOO/contrib/moogopher.ps

and was developed by Larry Masinter <masinter@parc.xerox.com> and Erik Ostrom.

This is a general MOO interface to Gopher. To use it, you need a MOO server. The MOO software is available from <ftp://parcftp.xerox.com/pub/MOO/>.

Gopher MOO was the gopher application that won the "coolest use of gopher" contest at the Gopher Conference in Minneapolis in the spring of 1993.