RPGDS is a dice simulator for coin and polyhedron dice.
The IRC's Talking Robot
Fast paced action RPG with retro graphics style
Managing Tool for Birthright
Old School gaming tool for GMs of AD&D/OSRIC.
A Java-based dungeon escape game.
Open-source first-person RPG with procedurally generated elements
Small and minimalistic text-based hack 'n slash RPG
Anathema has moved to http://anathema.github.com
EPIC is an indepth Multiplayer Strategy RPG Web Game
A tool for roleplaying gamemasters