A multi-agent architecture for building interactive dramas. It uses the Jason's BDI engine, being the Jason's agent-oriented programming language utilized for performing the drama management and for authoring behaviors for the characters.
An open source java class library for deduction rules. It provides an infrastructure for defining, managing and querying rule bases and facts. Use rete.
The jTTS project provides a refactored implementation of the FreeTTS software speech synthesizer. Rather than building upon the flite implementation of a TTS engine, it implements engine capabilities from Festival. It also supports British English.
MUD engine, enables interaction with text-only, XML clients. Has on-line/in-game world creation capability. WotC's OGL SRD and Java based, capable of scalable worlds across distributed servers. In short a next generation MMORPG engine.
Yajre is a java rules engine with semantics designed for rules that are easy to reason about. Yajre is sponsored by Ecensity, home of the JSP portal `displet'.