or press Space / Enter
Arrange falling blocks (tetrominoes) to fill complete horizontal rows. Completed rows are cleared from the board, earning you points.
Scoring: Clear multiple lines at once for bonus points. Single = 100, Double = 300, Triple = 500, Tetris (4 lines) = 800. Points are multiplied by your current level.
Levels: Every 10 lines cleared advances you one level, increasing the drop speed.
Controls: Arrow keys to move and rotate, Down arrow for soft drop, Space bar for instant hard drop. On mobile, use the on-screen buttons.