Tetris is a tile-matching puzzle in which seven distinct four-square shapes, called tetrominoes, descend into a vertical well. By repositioning and rotating each shape you aim to create complete horizontal lines, which then disappear, freeing space and adding points. The game rewards spatial awareness, quick reflexes, and efficient planning under gradually increasing pressure.

This browser-based rendition lets you steer each falling piece with keyboard arrows, perform soft drops, toggle pauses, and switch to full-screen. Difficulty selection sets the starting speed, and an adaptive pacing system accelerates play as you clear lines, ensuring a balanced challenge across casual and advanced sessions.

Play during short breaks to sharpen pattern-recognition skills or unwind with classic arcade action; sessions fit seamlessly on desktop or mobile screens. Remember to take regular breaks to reduce eye strain and maintain healthy posture.

Features:

Three starting difficulty presets that influence initial drop speed.
Adaptive level system raising pace every ten cleared lines.
Responsive canvas with automatic scaling and full-screen toggle.
Next-piece preview to support forward planning and advanced stacking.
Real-time score, line, and level tracking for competitive play.
Intuitive keyboard shortcuts for movement, rotation, pause, and view control.

Step-by-Step Guide:

Follow these actions to maximise scores and enjoyment.

Select a difficulty by clicking Easy, Normal, or Hard.
Use ← and → to shift the active tetromino left or right before it lands.
Rotate the piece with ↑; press ↓ for a soft drop that accelerates descent.
Press Space or P to pause and resume whenever needed; progress freezes instantly.
Clear lines efficiently to raise your level—each new level shortens the drop interval and boosts scoring potential.

FAQ:

Is my data stored?

No personal information, scores, or play statistics leave your device; everything runs locally in the browser.

How are levels calculated?

The level increases every ten cleared lines, reducing the drop interval by 100 ms until the speed cap is reached.

Can I play offline?

Yes. Once the page loads, the reactive engine operates without an internet connection, provided your browser remains open.

Why does the game end abruptly?

The session ends when any part of a locked tetromino extends above the visible board, indicating no remaining space for new pieces.

Does full-screen affect performance?

No. Rendering scales the canvas but keeps the same lightweight graphics pipeline, so frame rates remain smooth.

Glossary:

Tetromino: Any of the seven canonical four-square shapes used in the game.
Soft Drop: Manual acceleration of a piece’s descent without instant locking.
Line Clear: Event where a fully occupied horizontal line disappears and grants points.
Level: Difficulty indicator that shortens the drop interval as it rises.
Full-Screen Mode: Browser feature that expands the game to fill the entire display.

Online Tetris Game