Learn to create a multiplayer snake game using JavaScript and Socket.io in this comprehensive video tutorial. Begin by setting up the HTML and canvas, then progress to painting the snake and establishing a Socket.io server. Connect the frontend to Socket.io, move the game state to the server, and implement a game loop. Master snake controls, develop a home screen for multiplayer functionality, and handle new game creation on the server. Explore adding a second player, managing join game error states, and modifying game mechanics for two players. Conclude with testing, debugging, and achieving a fully functional multiplayer snake game.