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Your stories come to life, one choice at a time

An online murder mystery game you can play right now

No kit to buy, no party to host: a crime scene, suspects who lie, and a killer locked in from the very start. Play in your browser, free and without signing up — alone, or with a friend as your co-detective.

A murder mystery you play online, not around a table

Most murder mystery games need a host, printed booklets and eight friends free on the same evening. This one needs a browser. You open a case and investigate chapter by chapter: examine the scene, interrogate a suspect, confront two testimonies that do not add up.

Every suspect is played by the AI and answers your actual questions — no scripts to read aloud, no cards to hand out. Your case file keeps itself up to date as you dig: suspect sheets, clues, loose ends. When you are sure, you name the killer. One accusation, instant verdict, a score out of 100, then the full reveal.

It is free to start, with nothing to download and no signup required.

A 2-player murder mystery: investigate with a friend

The whodunit is better with a partner to argue with. In duo mode, two detectives work the same case from two screens — compare theories, split the interrogations, disagree about the butler, and settle on one accusation together.

It works wherever your partner is: same sofa or another continent. A murder mystery game for two makes a solid long-distance game night — no scheduling eight people, just the two of you and a killer to catch.

A new mystery every day, and a catalogue behind it

Every day a brand-new case goes live — a setting, a victim, suspects who all have something to hide. Miss a day and nothing is lost: past mysteries join the catalogue, each with its stats — how many players tried it, how many actually caught the killer.

The killer is locked in: the AI cannot cheat

The usual problem with AI mystery games is that the story bends: get close to the truth and the facts quietly change. Here, the whole solution — killer, motive, alibis, clues — is generated and locked server-side before your first question, and the AI has to stick to it.

You are solving a real puzzle with a real answer, not chasing a story that rewrites itself. Whatever you try, the case stays consistent from the opening scene to the reveal.

Fresh cases from the catalogue

A new mystery is published every day and joins the list — each with its solve rate.

The Valley's Disclosures

A sleek, modernist campus carved into a remote valley, where brilliant minds clash over the future of artificial intelligence. The air hums with the quiet thrum of mainframes and the crackle of unspoken rivalries, transforming a heated debate over transparency into a deadly secret.

4 detective(s) · 0% solved it

Open the file

The Albion Lodge Enigma

Deep within the fog-choked Briarwood Forest, Albion Lodge stands as a bastion of leather-bound tradition and whispered power. The air is heavy with the scent of old cedar, expensive tobacco, and the metallic tang of a coming storm. Beneath the polished surface of after-dinner cordiality, a viper's nest of ambition and desperation coils, ready to strike.

36 detective(s) · 3% solved it

Open the file

The Watersmeet Affair

Beneath the oak-panelled elegance of the Watersmeet Hydropathic Hotel, a chill of polite hostility pervades the air. Here, the weight of Victorian tradition clashes with the cold allure of progress, as a secluded valley's fate hangs in the balance.

36 detective(s) · 0% solved it

Open the file

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Frequently asked questions

Is the murder mystery game really free?

Yes. You can start a case for free, without signing up; complimentary credits let you play before any subscription.

Can I play with a friend?

Yes. Duo mode lets two detectives investigate the same case from two screens, wherever you both are, and decide on the accusation together. Solo works just as well.

Do I need to download anything?

No. The game runs entirely in your browser, on desktop or mobile — nothing to install, no app.

How long does a case take?

A focused run takes around half an hour to an hour; you can also stop anytime and pick your case up later. Your file keeps everything you found.

Is it always the same mystery?

No. A new case is published every day, then joins the catalogue. Each one has its own solution — killer, motive, alibis — fixed once and for all when the case is created.

Can the AI change the killer along the way?

No. The entire solution is generated and locked server-side before you play. The facts stay consistent from your first question to the final reveal.

Start your first case — free