Dungeon Shell is a shell for D20 Dungeon Masters. Simple commands allow DM to manage a game session and track characters and monsters statistics. It is written in Java (1.4.0 at least). Data is stored in XML and you can script it with j[p]ython.
GM's support script for d20 gaming systems with non-player character generation, generation of multiple monster and treasure capabilities. Designed to support game masters by providing individualised opponents, NPCs and treasure without the dicerolling.