What is a dle game?
A "dle" is any daily browser puzzle built in the shape Wordle popularised. The name is a joke that stuck, and the format now covers everything from anagrams to satellite photography.
Where the name came from
Wordle was named after its creator, Josh Wardle, which is a pun that only works once. When other people started making their own versions, they needed names, and the path of least resistance was to take whatever their game was about and glue "-dle" onto the end of it. Guess a country from its outline? Worldle. Guess a song from a one-second clip? Heardle. Guess an equation? Nerdle.
The suffix spread far enough that it stopped being a reference to Wordle specifically and became the name of the format. People now say "dle game" the way they might say "roguelike", meaning a shape rather than a descendant. Plenty of games in the genre have no -dle in their name at all and still belong to it.
The four rules almost all of them follow
There is no committee and no spec, but the games converged on the same handful of decisions, because those decisions are what make the format work.
One puzzle a day. Not a level select, not an endless mode. Today has exactly one answer and when you have found it you are done. This is the whole trick: the format cannot eat your afternoon, so it never feels like something you should stop doing.
Everyone gets the same one. Because the puzzle is tied to the date rather than to you, your score means something to other people playing it. That is what turned Wordle into a social object rather than a private time-killer, and it is why the share grid mattered so much.
Feedback narrows the field. A guess is not just right or wrong. It tells you something: the letter is in the word but misplaced, the country is 400 km north, the year is too early. Each attempt is supposed to be a deduction built on the last one, not a fresh shot in the dark.
A hard limit on attempts. Six guesses, or five, or three. The cap is what makes the feedback valuable. Remove it and the deduction stops mattering, because you can simply grind until you land on it.
Why they reset at midnight
The daily reset does more work than it looks like it does. It creates a natural stopping point, which is the opposite of how most free browser games are designed. It also makes the game a shared event: a conversation about today's puzzle is possible precisely because there is only one and everyone had the same one.
Most games reset at local midnight, so the answer changes at a different real-world moment for each player. A few use a fixed timezone instead, usually US Pacific or UTC, which is why you will occasionally see a game flip over in the middle of your afternoon.
How far the format stretched
Once the shape was established, the interesting question stopped being "how do we copy Wordle" and became "what else can be guessed six times with feedback in between". The answer turned out to be almost anything. The games catalogued here span 18 categories, and the distance between the ends of that range is considerable.
Some stay close to home. Word games are still the biggest single category by a wide margin, and many of them are recognisably Wordle with one rule changed. Others take the daily deduction loop somewhere it has no business working, and it works anyway: guessing a song from a fragment of audio, pinning a city from a street view, or reading a chess position for the one move that wins.
Five that show the range
If you want to understand the genre quickly, these cover most of what it can do:
Absurdle
An adversarial version of Wordle that actively avoids giving you the answer.
Worldle
Guess the country by its shape on the world map.
Heardle Daily
Guess the song by listening to small parts of it.
Nerdle
Guess the secret arithmetic equation.
Globle
Guess the mystery country, given how close it is to each guessed country.
Are they free?
Nearly all of them, yes, and nearly all are made by one person as a side project. Wordle itself was famously given away before The New York Times bought it, and that set the tone: the overwhelming majority of dle games ask for nothing, require no account, and survive on a coffee link in the footer. A handful of the bigger ones have since added optional archives or ad-free tiers, but the daily puzzle is essentially always free.