Everything investigators need to know before opening a case file.
Dead Letter Bureau creates physical mystery case files that are delivered to your door. Each file contains evidence, witness statements, photographs, maps, police notes, coded messages, and other investigative materials.
Receive your case file, review the evidence, connect the clues, and determine the truth. Once you've reached a conclusion, scan the investigator QR code included in the package to access the case portal and submit your findings.
No. Dead Letter Bureau investigations are fictional experiences designed to feel like authentic recovered case files.
Case File 001 is designed for beginners and experienced mystery fans alike. Everything required to solve the case is included in the evidence packet.
Most investigators complete Case File 001 in approximately 60 to 90 minutes.
Absolutely. One case file works well for individuals, couples, families, or small groups of up to four players.
Each case includes a collection of evidence documents such as witness statements, police reports, photographs, maps, notes, receipts, coded messages, and other investigation materials.
Every case includes access to an online investigator portal where hints are available. Hints are organized from subtle nudges to stronger guidance so you can choose how much help you want.
No account is required. Access to hints and case submission is provided through the QR code included inside your case file.
Yes. The Dead Letter Bureau archive is constantly expanding. New investigations will be added as additional files are reconstructed and released.