Player1 - Use WASD to move, "q" to change blocks and "space" to place a block. Player2 - Use the arrow keys to move, "n" to change blocks and "m" to place a block. Make sure you are logged in! Play with a friend, but make sure you are not both playing with the same controls.
Code - Me This game is an experiment and does not work well (it also has an insane amount of bugs) but I am testing the concept of a multiplayer 2D sandbox game.