MoxQuizz is a multilingual IRC quiz/trivia script for eggdrops which acts as a game master. A question is posted to the channel, and all chatter is searched for the answer. If something matches an answer or an optional regular expression, the user who said it receives a point. Highscores and an allstars table are managed. Users can ask their own questions, too. A large set of German and English questions are provided, but you can easily run MoxQuizz with your own set. There are numerous fun commands like !hug, !roll, and others.
IRC Chess is a 2-player chess game for IRC. It consists of a Java chess server, with frontend scripts to convert an IRC client into a chess bot. Players then communicate with the bot using standard IRC commands, and don't require any special software to play. Frontend scripts are available for IRSSI and X-Chat.
SeeBorg is a random phrase bot that will sit in an IRC channel, learning the talk, and periodically replying with something that is generated from the learned dialogue. It usually doesn't make much sense, but sometimes it's funny, and sometimes very hilarious. It uses the Markov Chain algorithm for building messages and is a clone of PyBorg.
Egg-fu is a simulated Artificial Intelligence IRC script for Eggdrop much like infobot, but with many more options and features, high configurability, automatic learning and interaction, multi-language support, and two main modes: the default SAI mode, and a define-bot mode, as well as any cross-breed thereof via config.
Lachesis is an IRCRPG combat engine written in a combination of C and C++. The combat engine is being written for a specific RPG, but most of the project should be useful to IRCRPGs in general. It includes a native interface to the IRC protocol to allow it to act as an IRC bot, for such uses as dice rolling and acting as a remote-controlled client (RPG NPC perhaps).
psyced is a distributed chat and messaging system based on the Protocol for SYnchronous Conferencing. PSYC is multicast and routed between servers and clients in a scalable and efficient way, but users can also comfortably use IRC clients, telnet, Web chat, WAP, or Jabber to enter the network. psyced also communicates with the network of Jabber/XMPP servers and hosts programmable chat rooms for all of these technologies at once. It also provides gateways to several IRC networks, but unlike IRC, everyone can run a server and be an equal member of the PSYC network. It supports PSYC, XMPP, IRC, TELNET, HTTP, Applet, SMTP, WAP, XML, RSS, and TLS.