Cold Case Files

Real cases · Original evidence

Every case is real. Every case was solved. Can you solve it again?

Step into historical murder investigations. Study the documents the detectives saw, follow the clues they followed, and see how your reasoning holds up.

Take a caseNew case every week · Weekly leaderboard

How it works

  1. 01

    Open the file

    Each case starts with a briefing, drawn from real historical records.

  2. 02

    Examine the evidence

    Letters, photographs, newspaper reports and witness testimony. Pin them to your board.

  3. 03

    Name your verdict

    Who, how, and the evidence that proves it. Fewer hints and fewer wrong guesses score higher.

In the archive