Multiplayer

Create a lobby or pick one from the list. Private lobbies need the room code when you join.

Create lobby

Game

Your name (required to create)

Private lobby (🔒 in the list; friends need the room code to join)

Players: 2 (set by game). Host always moves first.

Lobbies

Your name (required to join)

No lobbies — try creating one!

Join with code (private only)

Private room code

Only for private lobbies: five letters A–Z (not case-sensitive). Public lobbies: use the list above.

Create / Join not working?

Double-click serve-game.bat in the Game folder, then open http://localhost:8080/dtrb/mp-lobby.html (not a file:// link). In Firebase: enable Anonymous sign-in, create Realtime Database, and publish rules (see firebase.database.rules.json). The database URL in js/mp-firebase-secrets.js must match the Realtime Database console.