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MudMagic - http://www.mudmagic.com/mud-client/
Gnome client for linux and windows with plugin support. |
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TinTin++ - http://tintin.sourceforge.net
Console mud client, with most standard features. Windows, Mac OS X, and Linux builds available. |
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GGMud - http://ggmud.sourceforge.net/
GTK client with most standard features. Win32, OS X, and Linux builds available. |
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JamochaMUD - http://www.jamochamud.org
Java client with most standard features. Windows and Linux builds available. |
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Trebuchet - http://www.belfry.com/fuzzball/trebuchet/
TCL/Tk client for Linux and Windows. Supports MCP. |