Code Hack: Crack the Code

A hidden colour code. A handful of guesses. Nothing but logic to get you there.

Code Hack is a classic code-breaking puzzle. Each guess comes back with two clues:
a black peg for the right colour in the right spot, a white peg for the right colour
in the wrong spot. Read the clues, narrow the field, crack the code.

CHOOSE YOUR CHALLENGE
Three difficulty levels change the code length, the colour palette and how many
guesses you get. Easy is a warm-up. Hard will make you keep notes.

DAILY CHALLENGE
One code a day, the same for everyone, generated from the date. Build a streak,
track your best run, and share your result as an emoji grid without spoiling the
answer for anyone else.

TWO PLAYERS, ONE PHONE
Pass-and-play: one of you sets a code, the other breaks it, then you swap. Fewer
guesses wins. No second device, no account, no internet.

TRACK EVERYTHING
Win rate, current and best streak, average guesses, and a breakdown of how many
tries your wins actually took. Eleven achievements with progress bars, from your
first crack to a hundred games played.

BUILT TO BE PLAYED
- Works offline — the puzzle needs no connection
- High-contrast glyph mode so the pegs read without relying on colour
- Four colour themes
- Hints when a code has you stuck
- Sound and haptics you can turn off

Free to play with ads. A one-time purchase removes the interstitials for good.

No accounts. No sign-up.