Pathway: Multiplayer Developer

Level: Intermediate → Advanced · For: building networked games.

The route

1. The networking model — the NetTransport / StateReplication contract + Colyseus Callbacks API.

2. Rooms — the shipped Colyseus rooms and how to add your own.

3. Build it — the multiplayer tank arena capstone: a server-authoritative game where your tank and remote tanks sync through a room.

4. Go deeper — the shared-physics playground shows server-owned object state (players push boxes every client sees identically), and the third-person tag arena adds a full match loop (lobby → countdown → playing → scoreboard) with host controls and AI bots.

5. Lab — add a new synced field (e.g., score or health) to a room and render it client-side.

Outcome

You can build a server-authoritative multiplayer game: define a Colyseus room, send input up, sync authoritative state down, and render it via the Callbacks API (reading live schema fields).