Lesson 01 of 12

How Online Multiplayer Actually Works

Before any code, get the simple mental model in your head: lots of players, but everyone is looking at the same shared world that all their screens agree on. You'll see what makes .io games so fun and plan your friendly arena, picturing how each move you make shows up on a friend's screen.

⏱ 10 min read
Video coming soon
The written lesson is below. Video walkthrough publishes shortly.

Before any code, get the simple mental model in your head: lots of players, but everyone is looking at the same shared world that all their screens agree on. You'll see what makes .io games so fun and plan your friendly arena, picturing how each move you make shows up on a friend's screen.

The video walkthrough is coming soon. In the meantime, this lesson covers the topic from first principles, step by step.