Play Tetris Online: A Step-by-Step Guide

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

Create an account using your email address.

Log in to your account.

Choose the type of game you want to play. Options include 'Marathon', '40 Lines', 'Ultra', and more.

Select your difficulty level.

Use your keyboard or mouse to move and rotate the pieces as they fall from the top of the screen.

Clear lines by aligning the pieces to make a horizontal line across the playing field.

Earn points for every line you clear.

Win the game by clearing as many lines as possible before the pieces reach the top of the screen.