Fifteen authentic forensic murder cases spanning three technological revolutions. Typewritten alibis, magnetic surveillance tapes, and modern cyber-telemetry. Examine the physical evidence. Break the alibis. Issue the warrant.
This can't be undone. Every solved case, Detective Rank, note, evidence tag, hint and Concordat marking will be erased — including access to the secret file.
Welcome, Investigator. The Federal Cold Case Division archives contain 15 unsolved homicide investigations structured across three chronological volumes:
Typewritten logs, typewriter font quirks, physical carbon receipts, 35mm film, and Polaroid crime scenes. Solved on a physical cork pinboard.
Floppy disk data backups, VHS surveillance footage, alphanumeric pager dispatches, and 14.4k modem handshakes. Solved via a CRT Windows 95 command database.
Starlink mesh telemetry, GPS EXIF coordinates, smartwatch barometric altimeters, and drone optical feeds. Solved via a Biometric HUD scanner.
Every case is designed with strict fair-play detective logic. The perpetrator cannot hide from forensic science if you cross-reference meticulously:
Do not rely solely on memory. Keep your investigative notes organized using the built-in Field Logbook:
Click the floating notebook button at the bottom-right corner or press keyboard shortcut [L] anywhere in the desk workspace to toggle your notebook.
Type your working hypotheses, timeline paradoxes, and bootprint measurements. All notes are auto-saved instantly to your local browser storage for each case.
Each era features its own bespoke deduction interface requiring you to isolate the Culprit, the Key Clue, and the Motive:
Click one card from each column (Suspect + Strongest Evidence + Motive). An authentic red yarn string will pin them together. More than one evidence item can be valid, so pick the one you would put in front of a judge. Click "STAMP ARREST WARRANT" to execute your accusation.
Use the dropdown menus, or type a command directly into the terminal's command line: ARREST [suspect] [clue] [motive] (reference each by its on-screen number, e.g. ARREST S1 C2 M3), or HELP for a full reference list. Then click "EXECUTE DISPATCH CROSS-CHECK" to broadcast the warrant.
Select the prime suspect, vector trace, and motive in the telemetry HUD. Press and HOLD the digital fingerprint scanner for 1.5 seconds to digitally certify the indictment.
When your deduction is validated by the District Attorney:
Welcome back, Investigator. Thanks to your feedback, the Cold Case Archives just got sharper:
Your solved cases, notes and tags are untouched. On cases you have not solved yet, evidence you opened before this update needs one more look to count toward the new checklist.
Standalone Progressive Web Application • Offline-Ready Forensic Suite
Click the Install button above, or click the small install icon (⊕) that appears on the right side of your browser address bar.
Tap the Share button (box with an upward arrow 📤) at the bottom or top of Safari, scroll down and tap "Add to Home Screen".
You can also keep the bundled file The_Century_of_Crime.html stored locally on any tablet or computer as a backup copy. It needs to stay in the same folder as the assets/ and data/ folders to load the case photos.