Action RPG that's easy to mod
RPG character generator for RPG d20 systems.
Built to be ease of use, with no programming knowledge, Multi-platform
Very Beta ASCII Text RPG (in perl)
The IRC's Talking Robot
Single-player text-based adventure, written in Java
Old School gaming tool for GMs of AD&D/OSRIC.
DiaT is a Textadventure
Small and minimalistic text-based hack 'n slash RPG
A tool for roleplaying gamemasters
Java Game, Simple 2d, for Practice and Examples