mozilla/BrowserQuest ? reverse-engineered prompt

Build me a simple browser based multiplayer game like the old BrowserQuest demo

I want a small HTML5 game that runs in the browser, lets multiple players join the same world, move around, and see each other in real time. It should feel like a light adventure game with a top down view, basic exploration, and simple interactions like walking, chatting, or picking up items if that fits the game. Please make it playable with a working server and client so I can open it in a browser and try it right away.

Keep it straightforward and fun, not overly polished. If you need to check current docs or best practices for the tools involved, go ahead and look them up. Also organize the code cleanly so the client, server, and shared game logic are easy to follow.