You can connect to DelusionsMUCK in two ways. Either from your own command shell / client / prompt or from here. Both methods uses the Telnet-protocol for the connection.
Click to CONNECT to DelusionsMUCK.
Type: telnet delusions.iglou.com 4999
If using Microsoft Windows (3.1x/95/NT) you may be interested in the GeNewIc MUDclient for Winsock