Play TETR.IO, the free-to-win online stacker game in the same genre as Tetris. Face off against the world in multiplayer, or claim a spot on the leaderboards!

TETR.IO DESKTOP Break out of the browser and take your game to pro level with maximum performance GET FOR WINDOWS

Track players' progress and achievements on TETRA CHANNEL - the official companion site to TETR.IO, the modern yet familiar online stacker.

Discover TETR.IO, the modern online stacker game with a familiar touch. Learn about its features, development, and community.

The auto-updater now supports slow rollout. On Windows, added additional hints to the OS to use the high-performance graphics card. Please note that once TETR.IO itself exits Beta, the Legacy line will …

We hope to see you again for the next TETR.IO World Championship! The circuit stage has ended. Thank you for participating in any of the 86 qualifiers! The Main Event is being prepared as we …

Dec 18, 2025 · PATCH NOTES - TETR.IOPATCH NOTES Please consider supporting TETR.IO development!

Compared to other browser-based games, TETR.IO tries to give you a full-fledged desktop experience. Lower-class devices might have trouble playing the game on default settings.

Dec 4, 2024 · Listen to all the tracks from TETR.IO's Quick Play 2 gamemode in lossless quality, together with additional goodies like sheet music, a piano version, full stems and more!

The TETR.IO Community Rules were last updated on February 12th, 2023. These rules are the basis of the TETR.IO community and endeavor to keep it a fun and welcoming place for everyone.