Drawn like a comic book
Clean ligne-claire art, warm paper tones and an easy-to-read font. Play in English or French.
A cozy detective puzzle game
Jack is on the case. Anonymous letters, coded messages, a locked safe and a room full of suspects: help him decode every clue, one puzzle at a time, and name the culprit.


Every case unfolds like a comic strip, one panel at a time.

A letter lands on Jack's desk: a theft, a deadline and a handful of suspects.

Anonymous letters are written in symbols. Tap a symbol, pick its letter, and the message appears.

Pair numbers that match or add up to the target, until the safe gives up its secret.

Weigh the clues you found, rule out the suspects and point to the one who did it.
Clean ligne-claire art, warm paper tones and an easy-to-read font. Play in English or French.
Play offline, at your own pace. No account, no ads, no in-app purchases.
Your progress, settings and statistics are stored on your device and never sent to us. The only thing that leaves your phone is a crash report, sent to Unity, the maker of the game engine, so we can fix bugs.
Read the privacy policyJack Decode is an independent game, designed and built in France. Questions, ideas or press requests? Write to us.