Cardinal Quest is an arcade-style roguelike written entirely in javascript and running in the browser. I started it a while ago and abandoned it, and Corey Martin (nefD) & I picked it up as our 4drl project and fleshed it out.
It is inspired by classics such as Golden Axe and the old (red-box) basic d&d.
Point your (html5-supporting*) browsers at
http://www.tametick.com/cq/ and take the first steps in your *Cardinal Quest*!
-Ido.
- i.e. recent versions of firefox, chrome and safari.