Seems the server is down.
Notice: The matchmaking server is currently down! I'm transitioning to a lighter websocket matchmaking server, and I'll update the example as soon as I can.
This is a simple Godot multiplayer game using Godot's WebRTC framework. I wrote an article explaining how this game works on my blog. You can find the game's source-code on my github page and on the dowloads for this project.
The game is a Snake multiplayer (similar to the old Tron game): two players compete in eating apple and trying to corner each other. The last one standing is the winner.
You are always the snake in the game. The other player is always the Dog.
The game works using my own small matchmaker server; it's a simple queue of players, and it sets up players in pairs.