What makes a great daily puzzle game
One puzzle a day, the same for everyone, gone tomorrow. It sounds like a restriction. It's the reason people come back.
Most games try to give you more: more levels, more unlocks, more reasons to keep going. A daily puzzle gives you one thing and tells you to come back tomorrow. And people do, every day, for years.
You can't overdo it
With one puzzle a day it becomes a small habit instead of a time sink. It fits in a coffee break or a bus ride. You can't play ten in a row, so you never get sick of it. You did today's, and that's that.
Everyone gets the same one
This is the part that makes it social. When everyone has the same puzzle, "how did you do on today's?" is a real conversation, and the daily leaderboard is a fair race because nobody got an easier puzzle.
Anyone can start, nobody can coast
A good daily can be played by someone who's never seen it before, but it can't be solved without thinking. The best ones give you a clue after every guess, so you're narrowing it down rather than guessing blind.
It has to be fair, and it has to feel fair
If everyone is compared with everyone, the puzzle has to be identical for all players and the scores have to be hard to fake. That's why the answer normally lives on the server, not in the page. Nobody trusts a daily they know can be cheated.
Streaks
A streak turns "I'll do today's" into "I don't want to break my run". Done well it's a gentle nudge. Done badly it turns into homework, and people quit the day they miss one.
Ours is about colour
Most dailies are word games, but the format works for anything with one answer a day and a clear clue after each try. Huedle gives everyone the same secret colour. You get six guesses and three sliders (hue, saturation and lightness), and after every guess it tells you which way to move each one. If you're curious where the colour comes from, there's a separate piece on that.