Most modems connect computers to the Internet via phone lines, but cable modems and satellite modems also are coming on the scene. The higher the number, the better. New modems are generally rated at 33,600 bps or faster. Previous modem generations are much slower. Many MUDs are online variants of Dungeons and Dragons.
All MUDs are text-based, with no flashy graphics.
Each player uses his or her own computer, connected to the other players' computers over the Internet. A typical MUD has a group of players cooperating in an effort to survive a multitude of computer-generated dangers. While MUDs are Internet-based, they cannot be played from web browsers , but instead require special client programs, which are usually shareware downloaded for free from various web sites. MUDs can be addictive and many users find themselves slogging their way through MUDs into the early morning hours. Users who fail to observe netiquette may be flamed .