By 1978-79, PLATO MUDs were heavily in use on various PLATO systems, and exhibited a marked increase in sophistication in terms of 3D graphics, storytelling, user involvement, team play, and depth of objects and monsters in the dungeons.PLATO MUDs are often ignored by historians and by the creators of other MUDs whose work came later.
MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat.
Players can read or view descriptions of rooms, objects, other players, non-player characters, and actions performed in the virtual world.
Players typically interact with each other and the world by typing commands that resemble a natural language.
MUDs can be accessed via standard telnet clients, or specialized MUD clients which are designed to improve the user experience.
Numerous games are listed at various web portals, such as The Mud Connector.