Is Diminoes free to play?

Yes. Diminoes runs in a browser at no cost, with nothing to install and no purchase to make.

How often does Diminoes reset?

Once a day. Everybody gets the same puzzle, and a new one replaces it when the game's day rolls over.

On diminoes.silliestduck.com, and you can play it inside this page without leaving Alldle.

It sits in Logic & Math, alongside the other daily games of that kind in the catalogue.

Logic & Math New

Lights-out with tetrominoes. Drag pieces onto a 5x5 grid to toggle lights until they are all off. One puzzle a day, plus a campaign if you want more.

Diminoes

Logic & Math

Turn all the lights off on a 5x5 grid using every tetromino you are given.

Drag a piece onto the grid and every cell it covers toggles: lit goes dark, dark lights up
Pieces can hang off the edge; only the cells on the grid change
Resets at 05:00 UTC

Is Diminoes free to play?: Yes. Diminoes runs in a browser at no cost, with nothing to install and no purchase to make.
How often does Diminoes reset?: Once a day. Everybody gets the same puzzle, and a new one replaces it when the game's day rolls over.
What languages does Diminoes support?: English.
Where does Diminoes run?: On diminoes.silliestduck.com, and you can play it inside this page without leaving Alldle.
What kind of game is Diminoes?: It sits in Logic & Math, alongside the other daily games of that kind in the catalogue.

If you play Diminoes, the closest things to it in the catalogue are Shikaku of the day, Clues By Sam and RNGdle. They sit in the same logic & math category. See the full list of alternatives.