An online multiplayer game that was in development many years ago, but never got to the point of release. Try the game on http://trashbattle.com. Full code published now.
Requirements: PHP MySQL Node.js with socket.io
Create a MySQL database, use trashbattle.sql to import the schema, and then edit database_info.json: replace *database user here* and *password here* with the MySQL database user and password that you have set up.
Note: Currently only works over HTTP. No HTTPS support. If desired, this needs to be added to the node.js socket.io setup.