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
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
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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.