Book game
Journal 29
The interactive puzzle book that started it all. Solve the riddles, submit your answers, unlock the keys.
Puzzle games by Dimitris Chassapakis
Welcome to J29·CLUB
A home for puzzle experiences and games — interactive books, web puzzles, and a new deduction puzzle every day. Solve, unlock the key, go further.
Out of the box
Out-of-the-box puzzle games
Lateral-thinking puzzles and games. Each one a world to step into — solve, unlock the key, go further.
Book game
Journal 29 Collection
This exclusive edition brings together the immersive trilogy Journal 29, Journal 29 Revelation, and Journal 29 Oblivion.
Book game
THE CHRONO LOG: A Journal 29 Adventure
The Chrono Log is a new adventure set in the Journal 29 universe, an interactive puzzlebook that unfolds across 24 eras of time, one solution at a time.
Book game
The Cypher Files
An escape room in a book. You're an agent of CY.P.H.E.R. — crack the codes before time runs out.
Book game
Cluegon: The Wonter Legacy
Connect the dots, reveal hidden clues, unlock keys through mind-bending levels.
Deduction puzzle games
DEDUCTIONARY
A new deduction puzzle every day — and the book that goes deeper.
Daily · Web game
DEDUCTIONARY — Daily
A new deduction puzzle every day. Weigh the clues, rule out the impossible, and crack it in under a minute — then come back tomorrow.
Next puzzle in
--:--:--
Build your streak
No signup to play
Book game
DEDUCTIONARY: Seven Murders
The murder-mystery spin-off, in book form. 7 cases, 70 puzzles. Read the clues, place the letters, catch the killer.