TkMOO-SE is the evolution of TkMOO which is a multi-platform MUD/MOO client written in TCL. We are incorarating the latest advances in MOO including full MCP 2.1 support.
The original source can be found at www.awns.com/tkMOO-light
A GTK+ MUD client with support for MCCP, MXP, support for the zChat and MudMaster peer-to-peer chat protocols, the MUD sound protocol (MSP), Telnet GA support, regexp trigger support, aliases, Perl and Python plugin support.