JavaScript Israel have a games specific meet-up on March 30th, including a talk by Opher Vishnia about using Phaser and Firebase:
Going Commando - A Serverless Multi-Player Game - (Opher Vishnia)
Firebase is an amazing service that allows you to create real time data sharing in JS between multiple clients. Phaser.io is a JS library for making games. I’ll be live coding to show you how to use Firebase & Phaser.io to create a multi-player game experience in the browser.
Opher Vishnia, Lead Creative Developer at Interlude.fm, 14 years as a front end dev, game developer, graduate of both the Bezalel Academy of Arts and Design as well as the Hebrew University school of Computer Science.