You can see a demo hosted at OpenShift here (when OpenShift doesn't idle it).
Pokémon map is a very basic experiment (my first) with socket.io. The goal is to have multiple players on a Pokémon map (I choosed the FireRed/LeafGreen Pallet Town), and to be able to see other players moving in real time. I also added a chat to provide a way to curse at other people. 😄
I used jQuery and bootstrap for the client side program. I know the code is quite messy, I would like to switch to Angular.js but I don't have time right now. Also, Bootstrap style is in contradiction with the "retro pixel" style.
You need node, npm and bower.
Run npm install and bower install to get dependencies.
You can now run node server.js and open your browser at 127.0.0.1:8080.
I used images from Pokémon games, © Pokémon/Nintendo/GameFreaks/whatever.