Tetris — Classic Falling Blocks
Play classic Tetris in your browser. Rotate and place falling tetrominoes, clear lines, and beat your high score.
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Frequently asked questions
What are the controls for desktop and mobile?
Is my high score saved?
What is the most effective strategy for scoring high?
Who invented Tetris and when?
How is the score calculated?
When does the level increase and what changes?
What is the hold piece and how do I use it?
Is the game accessible for players with disabilities?
What is the world record Tetris score?
What is the seven-bag randomiser?
About Tetris — Classic Falling Blocks
Tetris is arguably the most successful video game ever created, invented by Soviet software engineer Alexey Pajitnov in June 1984 while he was working at the Dorodnitsyn Computing Centre of the Soviet Academy of Sciences in Moscow. Pajitnov was experimenting with a mathematical toy — a pentomino puzzle — and simplified it to four-square pieces (tetrominoes) to make the falling mechanic workable on the hardware available. The name Tetris blends the Greek prefix "tetra" (four) with tennis, Pajitnov's favourite sport. He initially shared the game among colleagues on the Academy's network, where it spread rapidly. Within months it had made its way onto IBM PC clones in Hungary, and from there across the Iron Curtain to Western Europe — often through unofficial channels, copied from disk to disk with no formal distribution.
Seven differently shaped tetrominoes fall from the top of the playfield — the I, O, T, S, Z, J, and L pieces. Your job is to rotate and slide them into position to complete solid horizontal lines. Completed lines vanish and everything above drops down, earning you points. The game speeds up as you advance through levels, demanding faster decisions and more precise placement. Clearing four lines simultaneously — the coveted Tetris — scores the highest single-move points and requires the I-piece to slot into a prepared gap on the side of the stack. The game ends when pieces stack up and reach the top of the playfield.
High-level Tetris technique begins with flat stacking: keeping the playing field as level as possible to maximise flexibility. Avoid creating holes — cells with blocks above them that cannot be filled without clearing lines first — as they compound over time and are the primary cause of losing. Build your stack low and maintain one open column (usually on the right) as a well for I-pieces, enabling Tetris clears. Learn to soft-drop pieces into position with the down arrow for speed and control, and use the hold function (C key) to save an inconvenient piece and swap in something more useful.
This browser version follows the official Tetris Guideline rules used in modern Tetris games: the seven-bag randomiser (every set of seven pieces contains one of each tetromino, preventing long droughts), wall kicks for rotation near boundaries, and the ghost piece that shows where the current tetromino will land. Controls are arrow keys for movement, up or Z to rotate, Space for instant hard drop, Down for soft drop, and C to hold. Level increases every 10 lines. The game is entirely browser-based with no account or installation required.
Tetris: Born Behind the Iron Curtain
When Alexey Pajitnov created Tetris in 1984, he was a researcher at a Soviet government computing centre, and under Soviet law all software created on state equipment was state property. Pajitnov received no royalties from his invention for a decade. The game spread westward through a chain of unofficial copies: colleagues passed floppy disks among themselves, the game reached Hungary, and Hungarian programmers brought it to a British software company called Andromeda, which sold it to Spectrum HoloByte for Western distribution — all without any legal authority to do so, since the Soviet state nominally held the rights. The resulting legal chaos over Tetris licensing rights became one of the most complicated intellectual property battles in gaming history.
The scramble over licensing rights drew in the world's largest gaming companies. Nintendo recognised that Tetris was the perfect launch title for its new Game Boy handheld and secured the rights after an intense bidding war that also involved Atari and Sega. The Nintendo Game Boy version, bundled with the hardware at launch in 1989, became one of the most important software-hardware pairings in gaming history. Researchers studying which players the Game Boy was attracting found that adult women — not the teenage boys Nintendo had targeted — were buying Game Boys primarily to play Tetris. This insight helped reshape how the games industry understood its audience. Pajitnov finally received his first royalties from Tetris in 1996, twelve years after creating the game.
Tetris has since been studied by neuroscientists, cognitive psychologists, and mathematicians. A 1994 study found that subjects who played Tetris for extended periods experienced "Tetris dreams" — intrusive mental imagery of falling shapes during the hypnagogic state before sleep — which became an early demonstration of how repetitive visual tasks can colonise the dreaming mind. Mathematicians have proven that no algorithm can prevent losing forever given an adversarial sequence of pieces, confirming the game has no perfect strategy. And in 2010, researchers demonstrated that playing Tetris for as little as three minutes per day for three weeks produced measurable increases in cortical thickness in the brain regions associated with visual-spatial reasoning.