Real-time Multiplayer Tic-Tac-Toe with ActionCable

Project roadmap

1. 01

   Model the game state

   ~1.5h

   Create a Game model storing the board state, current turn, and player assignments.

2. 02

   Set up an ActionCable game channel

   ~2h

   Create a GameChannel that clients subscribe to using a game ID, broadcasting state changes.

3. 03

   Implement move validation and broadcasting

   ~2.5h

   Validate incoming moves server-side, update game state, and broadcast the new board to both players.

4. 04

   Handle win/draw detection

   ~1.5h

   Add logic to detect a win or draw after each move and broadcast the game result.

5. 05

   Build the front-end board UI

   ~2h

   Create a simple JS/HTML board that sends moves over the channel and re-renders on incoming broadcasts.

Resources

• DocsRuby Documentation