Game design isn’t copyrightable. Code is, they could have a case if someone literally copied the code (which is very easy given its all run in browser).
The New York Times has filed a series of copyright takedown requests against Wordle clones and variations in which it asserts not just ownership over the Wordle name but over the broad concepts and mechanics of the word game, which includes its “5x6 grid” and “green tiles to indicate correct guesses.”
Game design isn’t copyrightable. Code is, they could have a case if someone literally copied the code (which is very easy given its all run in browser).
It isn’ t about cofe.