Connect-Four is a project mainly written in JAVASCRIPT and COFFEESCRIPT, it's free.
A node.js rendition of Bump's own BumpFour game for iOS. It uses websockets with help from socket.io. The whole app was written in CoffeeScript with the Express framework. Redis is used as our datastore.
Try it out here: (Web Bump 4 on Duostack)[http://webbump4.duostack.net]
Make sure to make a file called secret.js with the following contents: password='your_redis_password'
All of the image and audio resources you see here belong to the original BumpFour demo application.