Crossfire is a multi-player graphical arcade and adventure game made for X. It has certain flavours from other games, especially Gauntlet and the rogue-like games (Nethack, Moria, Angband, and Ragnarok). Any number of players can move around in their own window, finding and using items and battling monsters. They can choose to cooperate or compete in the same world.
DevClient is a highly customizable MUD client designed to be friendly and easy to use. It features full parsing of ANSI color codes, support for aliases, macro binding, keypad navigation, MCCP 1 and 2, accounts and automatic login management, prompt parsing, logging, and more. Its functionality and graphics can be extended with simple server definition files. It can be easily translated into any language. It can detect when a new version of itself is available and upgrade itself without restarting.
JamochaMUD offers Unicode, plug-in, and multi-language support (8 different languages) to allow a more enjoyable MUCKing/MUDding experience. It features command history, synchronized window controls, experimental SOCKS 5 support, and greatly improved ANSI colour support. It plays nice on Unix systems, supports a wide range of MU*s, and also includes emulation of some TinyFugue editor controls. JamochaMUD includes classes that may be easily reused in other Java applications.