Very basic multiplayer online game example made with Phaser, Node.js and Socket.io.
The tutorial corresponding to this game can be found here.
For the client, Phaser is included in the code (js/phaser.js). You will need npm to install the Node.js packages required for the server. To run the server, you'll need to have Node.js installed.
Clone the repository. Inside the newly created directory, run npm install to install the Node.js packages listed in package.json. Then run node server.js to start the server. The server will listen to connections on port 8081; you can change that behaviour by editing the code. You can access the app by navigating to http://localhost:8081/.