A fresh case every day
Return to the manor for a free daily puzzle and compare your solve with detectives worldwide.
Murderoku Sudoku meets murder mystery
Every clue tells a story.
Every story hides a killer.
A Sudoku-like logic puzzle wrapped in a golden-age murder mystery. Six guests entered the manor. One was alone with the victim. Place the suspects, follow the evidence, and expose the truth.
◆ Game in English · Daily case stays free forever
- 80
- case files
- 3
- board sizes
- 1
- unique solution
Blackwood Manor · 23:41
The premise
A locked manor. A silent room.
One impossible alibi.
Murderoku blends the satisfying structure of a Sudoku-like board with the atmosphere of a classic golden-age whodunit. No guessing. No hidden rules. Every case is verified to have exactly one solution.
How to play
Follow the evidence.
Three steps stand between you and the truth.
- 01
Read the testimony
Each statement reveals where a guest—or a telling object—could be found.
- 02
Rebuild the night
Place suspects on the manor board and use every clue to rule out contradictions.
- 03
J’ACCUSE!
Find who shared the victim’s room when the crime took place. Make your accusation—every miss stays on your record.
CASE № 036 × 6
“The armchair was not in the library.”
◆
BLACKWOOD CONSTABULARY
THE CASE BOOK
80MYSTERIES ON FILEPROPERTY OF THE INSPECTORThe case book
Eighty nights.
Eighty perfect crimes.
Begin with five free cases, sharpen your method, and work through three manors of steadily larger mysteries. The complete 80-case book unlocks with one purchase.
€3.99One purchase. No subscriptions.Today’s case stays free, forever.
- ◆ 50 cases at 6×6 · 20 at 9×9 · 10 at 12×12
- ◆ Every case verified to have exactly one solution
- ◆ Your current case is saved between sessions
Beyond the board
A proper detective never works alone.
Concrete proof for serious puzzle solvers—without accounts, ads, or guesswork.
One solution. Guaranteed.
Every layout is machine-verified to be solvable by pure deduction, with exactly one valid solution.
Hints, never spoilers
When the trail goes cold, layered hints nudge your reasoning forward without giving the culprit away.
A leaderboard you can trust
Times are ranked with hints and misses kept on record. A wrong accusation always counts.
Eight detective ranks
Build a daily streak and rise from Constable all the way to Consulting Detective.
Friends without accounts
Share a calling-card friend code and compare results without creating an account.
Coming soon to Android
Today’s case is on your desk.
Murderoku launches in English on Google Play. The daily mystery stays free, forever.