Games Like Tetris: 8 Free Browser Block Stackers

At a glance

The picks, ranked

1. 

   1

   TETR.IO

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   Modern competitive stacker with ranked multiplayer, straight from the browser.

   osk's free browser-based stacker and the de facto home of competitive online block stacking: the ranked Tetra League, 40 Lines sprints, Blitz score attack and custom multiplayer rooms all run in the browser with modern guideline-style handling that players can tune in detail. Registration is free; ranked play and saved stats require an account. A downloadable desktop client exists but is optional.

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2. 

   2

   Tetris (Official Web Version)

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   The officially licensed single-player Tetris, free on the web.

   The Tetris Company's own free single-player web version at tetris.com: a guideline-standard Marathon with hold, ghost piece and increasing gravity, playable with keyboard in the browser. It is ad-supported and lighter on features than fan-built stackers, but it is the one place to play officially licensed Tetris online without installing anything.

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3. 

   3

   Sandtris

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   Pieces melt into sand — clear by color, not by row.

   The sand-physics Tetris that went viral in 2023: falling tetrominoes crumble into thousands of grains of colored sand on landing, and instead of full rows you clear by connecting an unbroken line of same-colored sand from one wall to the other. It runs free in the browser at sandtris.com with no download or signup.

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4. 

   4

   Hextris

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   Rotate a hexagon under six-directional falling blocks instead of steering pieces.

   An open-source arcade puzzle from 2014 that reimagines Tetris on a hexagon: colored bars fall from all six directions and you rotate the central hexagon to stack them, clearing when three or more of the same color touch. Fast, minimalist and free in the browser, with the source code published on GitHub under an open license.

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5. 

   5

   HATETRIS

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   The game hates you: it always deals the worst possible piece.

   Sam Hughes (qntm)'s 2010 adversarial Tetris: there is no randomness — an algorithm examines your well and always deals the worst possible piece, which usually means S and Z pieces forever. Clearing even a handful of lines is an achievement, and the community has chased its world record for over a decade. Free, browser-based and open source.

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6. 

   6

   Worldwide Combos

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   Versus battles against recorded opponent runs — no live lobby needed.

   A free competitive block-stacking site with an unusual versus model: matches replay recorded runs from real opponents, so you can fight ranked duels at any hour without waiting for a live lobby. The site bills itself simply as a 'free and competitive block-stacking game'; it runs in the browser and offers ranked and casual queues.

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7. 

   7

   Free Tetris (N-Blox)

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   Zero-setup classic Tetris — one page, one well, no extras.

   A no-frills classic: freetetris.org hosts the browser-based N-Blox build of Tetris — plain keyboard controls, a standard well, and nothing to configure. The site's own pitch is simply 'browser-based online Tetris game, no download required', and that is exactly what loads: instant classic Tetris with no account and no install.

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8. 

   8

   React Tetris

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   Faithful brick-game handheld nostalgia, rendered in the browser.

   An open-source web Tetris by GitHub user chvin, styled after the classic 90s handheld brick-game console complete with the plastic casing and LCD look. Built with React and Redux, it is one of the most-starred web Tetris implementations on GitHub and plays with keyboard or on-screen buttons. The page title is in Chinese, but the game itself is instantly familiar.

   Auto-checked Jul 8, 2026Loads in 0.3 s