Active Worlds - Version 2.0 

A multiuser 3D environment that has been built entirely by it's 170,000+ users. Make friends, explore worlds, surf the web, play Java-based games, or design your own virtual home and build it for others to visit. Includes full integration of Microsoft Internet Explorer.

Checkers Chat - Version 1.0 

Don't just Chat. Now you can play checkers while you chat. Really easy to use. Just hit the connect button and a Checker Board pops up with a list of those waiting to play. Fun and friendly.