How to play Tetris online for free?
GameDev Team• 10+ years experience
Last reviewed March 1, 2026
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Quick Answer
Tetris involves rotating and placing falling blocks (tetrominoes) to complete horizontal lines. Completed lines disappear and earn points. Use arrow keys to move and rotate pieces.
Detailed Answer
Tetris is a tile-matching puzzle game where tetrominoes (shapes made of 4 blocks) fall from the top of the screen. Use left/right arrows to move pieces, up arrow to rotate, and down arrow to speed up. Complete full horizontal lines to clear them and earn points. The game gets faster as your level increases. Try to keep the stack low and leave gaps filled for maximum line clears.