A MUD (Multi-User Dungeon) is a multiplayer real-time virtual world, usually text-based, combining elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat.
A simple MUD server in Python, for teaching purposes, which could be run on a Raspberry Pi
DikuMUD III using HTML and websockets.
翻译 - 使用HTML和websockets的DikuMUD III。