WebGL Action RPG
First of all, you must have a webGL-compatible browser (firefox 4 or google chrome) to run the demo. Chrome is the best choice for performances and graphics (particles do not work well with firefox 4.0).
I have started a little RPG/hack & Slash game engine. The demo is here : http://nicolas-bonnel.github.com/WARPG/
The GitHub repository is here : https://github.com/nicolas-bonnel/WARPG