What is a MUD? ( English )

  A MUD (Multiple User Dimension, Multiple User Dungeon, or Multiple User
  Dialogue) is a computer program which users can log into and explore.
  Each user takes control of a computerized persona/avatar/incarnation/
  character.  You can walk around, chat with other characters, explore
  dangerous monster-infested areas, solve puzzles, and even create your
  very own rooms, descriptions and items.  You can also get lost or confused
  if you jump right in, so be sure to read this document before starting.


何謂 MUD? ( Chinese, Big5 )

   MUD ( 多人世界, 多人地下城, 多人對話 ) 是種使用者能接進去冒險的電腦程式.
   每個人控制著一個電腦化的角色/實體/化身. 你可以四處逛, 和別的角色談天,
   在個有怪物滋擾的危險地方探險, 解謎, 甚至創造你私人擁有的房間, 敘述和物品.
   如果你真的進來的話, 你可能會迷失方向或是感到困惑, 所以, 務必在開始之前,
   先讀讀這份文件.

   ps. 這是 Mud FAQ 的一部份, 其他部份, 就先省略........抱歉了!