How to Play Tetris Online: A Complete Guide

Visit a website that offers online Tetris games, such as Tetris.com or Tetrisfriends.com.

Create an account by entering your name, email address, and a password.

Select a game mode such as Marathon, Sprint, Ultra, or Master Mode.

Use the arrow keys to move and rotate the falling blocks.

Try to form horizontal lines with the blocks to clear them and score points.

When the blocks reach the top of the game board, the game is over.

Try to beat your previous score and challenge other players online.