MXP (Mud eXtension Protocol)

MXP provides a markup language based loosely upon HTML and XML, designed to provide better communication between the server and client. You can read more about it here.

Of the 206 active characters on God Wars II, 110 use MXP, and of those only 36 last connected from a unique IP address. These 36 characters are broken down by client as follows:

MUSHCLIENT 26 (72.2%)
MUDLET 7 (19.4%)
ZMUD 3 (8.3%)