Competitive Tetris with ranked ladders, custom rooms and a very serious top end. Free, no ads, no download needed.
Open tetr.io TETR.IO only runs on its own site, so it opens in a new tab.Loading tetr.io…
Competitive Tetris with ranked ladders, custom rooms and a very serious top end. Free, no ads, no download needed. 2020, osk.
TETR.IO is a free arcade, physics and puzzle io game (tetris, competitive, 1v1). Games that do not fit the other boxes. Sumo physics, curve-fever trails, competitive Tetris. It ran when last checked, on 2026-09-16.