Wordle got super popular and was then sold to the NYT. There have been a ton of interesting variations on the core mechanics:
- Wordle for Netscape - Wordle, but works in Netscape 1.0
- WorDOS - Wordle, but for DOS
- Worldle - Guess the country, once per day, based on outline
- Globle - Guess the country, once per day, with warmer/colder hints
- Passwordle - Guess the SHA-256 password hash (parody)
- DuoMoji - Emoji matching, once per day
- DNDle - Guess the D&D monster based on core stats
- Mathler - Guess the math equation (with a known target)
- Nerdle - Guess the math equation (including the equals)
- Mumberle - Guess the math equation (including the equals)
- Summle - Guess the (very simple) math equation
- Quordle - Guess four words at once
- Octordle - Guess eight words at once
- Semantle - Guess the semantically-similar word
- Lewdle - Guess the offensive word