[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ]
Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
sexyalice is a chatterbot for IRC networks. It does not have any internal databases, but instead connects to alicebot's website to get answers. It keeps sessions for each user, and has many other nice features.
Check code for details.
Lillybot is an OpenCyc-based irc chatbot. It implements a very
simple reasoning engine that works with the OpenCyc ontology,
and hooks it to a natural-language parser. It can answer simple
english questions with small simple-english replies.
Online game for developers. Program your team of 4 ants (in LISP) that can reproduce and gain experience and fight against another players in different game modes(CTF, TDM, DM)!
Yacca is an advanced chat bot (other plugins are under development, including a command-line only version for you to interact with yacca) that is designed to resemble a human chatter as closely as possible.
AIBuddy is an artificially intelligent chatbot. Unlike other chatbots, which pattern-match the entered phrase against a database of hard-coded responses, AIBuddy actually remembers the conversation, and can respond in context.
jasip, or Jeff's Automated Services/Information Provider, is a stand-alone bot for AOL's Instant Messenger (AIM) service. It provides many useful features not currently existing in AOL's Instant Messenger service, as well as just being fun.
"Nearly Intelligent Computer Operated Language Examiner" - NICOLE is a theory or experiment that if a computer is given enough combinations of how words, phrases and sentences are related to one another, it could talk back to you.