The DetectiveOS blog
How detectives actually work.
Forensics, interrogations and cold cases, explained with real cases. Plus the best mystery games to play tonight, game-night guides and news from the desk.

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Best Online Detective Games You Can Play in Your Browser
A curated list of the best browser-based detective and mystery games, from cold case investigations to interactive whodunits. No downloads required.
Read the list
Halloween Murder Mystery Game Night: How to Host One at Home
Plan a Halloween murder mystery night at home: pick a case that fits the dark, put it on the TV, split the roles and run the evening. No box to order, no script to learn.

The New DetectiveOS: A Free Case, a New Desk, a New Look
DetectiveOS has a new look: a free case to start with, a new detective desk, a page for every case and two new cases. Here is what changed, and why.

How Cold Cases Get Solved: The Forensic Techniques That Crack Decades-Old Mysteries
From forensic genealogy to DNA retesting: how modern science is solving murders that went cold for decades. Real cases, real techniques, real justice.
The forensics desk
How the evidence talks.
Photos, sound, money and deleted files: how investigators read each one. Each piece covers a tool you use in the cases.

What Is Steganography? The Art of Hiding Messages in Plain Sight

How Detectives Actually Trace Cryptocurrency Transactions

Audio Forensics: How Police Analyze Voice Recordings and Sound Evidence

EXIF Metadata Explained: How Detectives Track Photos and Solve Crimes

Hex Editors and Digital Forensics: How Investigators Recover Deleted Evidence
More to read

Best Online Escape Rooms You Can Play Right Now (2026)
The best online escape rooms and puzzle games you can play in your browser, from live-hosted rooms to forensic investigations. Ranked, reviewed, and honestly rated.

How Police Interrogations Actually Work (And Why Innocent People Confess)
The Reid Technique, false confessions, and the psychology of police interrogations. How detectives get confessions, and why the system sometimes convicts the innocent.
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