Play Tetris Online

Play the classic Tetris block puzzle game free in your browser -- no download required. Stack falling tetrominoes, clear lines, and chase high scores as the speed increases with each level. This timeless puzzle game runs entirely in your browser and works on desktop and mobile devices.

Tetris is one of the most beloved puzzle games ever created. The goal is simple: arrange falling blocks called tetrominoes to form complete horizontal lines. When a line is filled, it disappears and you earn points. The challenge grows as pieces fall faster at higher levels, demanding quick thinking and spatial awareness.

How to Play

1. Press Start or Space to begin the game.
2. Tetrominoes (shapes made of four blocks) fall from the top of the board.
3. Use the arrow keys or WASD to move and rotate pieces as they fall.
4. Position each piece to fill gaps and complete horizontal rows.
5. Clear lines to earn points and advance through levels.
6. The game ends when the stack of blocks reaches the top of the board.

Rules

• The playing field is a 10-wide by 20-tall grid.
• Seven distinct tetromino shapes appear in random order: I, O, T, S, Z, J, and L.
• A completed horizontal line is removed from the board, and blocks above it drop down.
• Clearing multiple lines at once awards bonus points (a four-line clear is called a Tetris).
• The falling speed increases as you level up, making each level harder than the last.
• You can see the next piece preview to plan your placement ahead of time.

Tips & Strategy

• Keep the board flat. Avoid creating tall, uneven stacks that are hard to recover from.
• Reserve space for the I-piece. Leave a column open on one side so you can score four-line Tetris clears for maximum points.
• Use the preview. Always glance at the next piece so you can plan where your current piece should go.
• Don't panic at higher speeds. Focus on placing pieces cleanly rather than rushing into bad positions.
• Practice rotating. Learn how each piece rotates so you can fit them into tight spaces quickly.

FAQ

Is this Tetris game really free to play online?

Yes. This browser game is completely free, requires no download, and works on any modern browser. Just open the page and start playing instantly.

What controls do I use?

Use the left and right arrow keys to move pieces, the up arrow to rotate, and the down arrow to soft-drop. Press Space for a hard drop that instantly places the piece at the bottom.

How is the score calculated?

Points are awarded for each line cleared. Clearing one line gives base points, while clearing two, three, or four lines at once awards progressively higher bonuses. A four-line Tetris clear earns the most points per line.