Is Stardle free to play?

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

How often does Stardle reset?

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

On stardlegame.github.io, and you can play it inside this page without leaving Alldle.

It sits in Nature & Science, alongside the other daily games of that kind in the catalogue.

Nature & Science New

Wordle except the secret word is related to Astronomy in some way.

Stardle

Nature & Science

Is Stardle free to play?: Yes. Stardle runs in a browser at no cost, with nothing to install and no purchase to make.
How often does Stardle 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 Stardle support?: English.
Where does Stardle run?: On stardlegame.github.io, and you can play it inside this page without leaving Alldle.
What kind of game is Stardle?: It sits in Nature & Science, alongside the other daily games of that kind in the catalogue.

If you play Stardle, the closest things to it in the catalogue are Doggle, Disordle and Birdie Game. They share its daily, english. See the full list of alternatives.