Pingo is a simple dedicated IRC bot that watches the status of a PlaneShift server. PlaneShift is a free open-source MMORPG located at www.planeshift.it. Pingo informs chatters on the IRC channel when a server goes down or back up, spontaneously or on demand, and maintains uptime statistics for the server.
mrtoms is an IRC bot written in Scala. It supports a very powerful and easy to use plugin system where plugins are compiled to and loaded from jar files. mrtoms comes with a Z-machine interpreter plugin so that games like Zork can be played collaboratively. It also includes an MPD control plugin and others.