The Poor Woman's Telnet Server was quickly hacked together to provide a simple cross-platform telnet server. For non-Windows or non-Unix operating systems, you must adapt the call for the system shell. It is not advisable to run such an program on a production server, but for software development and testing purposes this program can satisfy some needs. It doesn't require a password and starts a system shell as the user who started the server.
Libtermui is a terminal driver library. It is fully standalone and lightweight. It does not rely on termcap or curses libraries. It can drive terminals on a TTY or through a telnet connection directly on a TCP socket. It is fully re-entrant, and can be used to drive multiple terminals from different threads. It includes a getline feature (similar to the one in readline) and some console user interface facilities.
ZOC is a popular terminal emulator and telnet client that supports telnet, modem, SSH 1 and 2, ISDN, serial, TAPI, Rlogin and other means of communication. Its terminal emulator supports Xterm emulation with full colors, meta-keys, mouse support, and local printing; VT102, VT220, and several types of ANSI; and Wyse, TVI, TN3270, and Sun's CDE. Unique features include full keyboard remapping, REXX scripting, and support for connecting to named pipes.
PAC provides a GUI to configure SSH and Telnet connections, including usernames, passwords, EXPECT regular expressions, and macros. It is similar in function to SecureCRT or Putty. It is intended for people who connect to many servers through SSH. It can automate logins and command executions.
KildClient is a MUD client written with the GTK+ windowing toolkit. It supports many common features of other clients, such as triggers, gags, aliases, macros, timers, and much more. But its main feature is the built-in Perl interpreter. At any moment, the user can execute Perl statements and functions to do things much more powerful than simply sending text the the MUD. Perl statements can also be run, for example, as the action of a trigger, allowing you to do complex things.
LDMud is an LP-class MUD engine, meaning it is object-oriented, with all object clases stored in unique files. The engine runs compiled bytecode to manipulate those objects, and the underlying simulated processor is a stack machine. It is a 3rd-generation LP-class MUD, being derived from Amylaar, which in turn was derived from the original LPMud. The game has no limitations on the nature of the game space other than the limits of your coding.
Cancan is a text-based, interactive utility similar to telnet, but with a number of extensions useful for MUD playing. Another use might be to provide line editing, aliases, etc., for those services that have a simple telnet interface. Cancan features aliases, actions, key bindings, text highlighting, substitutions, and line editing with history and completion.
AweMUD is a MUD server for use with fantasy-settings. Features include fully dynamic objects and characters, an advanced scripting system, and custom worlds. The engine will eventually have completely interactive rooms (items can be placed under benches, doors can be destroyed), complex magick, and interactive NPCs.