Who made this
Everriddle was written by Everlyce, for people who liked being told nothing.
The mark, the palette and the entire interface belong to the Everlyce POS app, which runs itself. This one does not run itself. That is the joke.
Every level, every clue and every wrong turn in the first hundred levels was written by hand. None of it is generated.
Thanks
To David Münnich, who made NotPron in 2004 and proved that a webpage can be a door that does not open unless you understand it.