An AI-powered murder mystery game where the suspects actually talk back — and what they say depends entirely on what you ask.
Live Witness is a browser-based multiplayer game for 1–6 players built around a single idea: real interrogation. Not scripted clues, not printed cards, not a pre-decided answer in an envelope. Five suspects powered by AI, one murder to solve, and three hours to do it — on any screen, with no app, no setup, and no experience required.
Murder mystery box games, board games like Cluedo, and scripted dinner theatre all share the same fundamental limitation: the answers are fixed before you even start. A suspect's statement is a printed card. Their alibi never changes. Their emotional reaction to a hard question was written six months ago by someone who had no idea what question you'd ask.
The result is a game that feels like following directions more than solving a crime. You collect clues. You cross-reference cards. You eliminate options. But you never actually interrogate anyone — because there's no one there to interrogate.
Live Witness is built on a different premise entirely. The suspects are real — or as real as a language model can make them. They have memory, personality, secrets they're protecting, and things they'll only admit under sustained pressure. Ask the wrong question and they shut down. Ask the right one at the right moment, and they say something they didn't mean to.
The full experience runs from a single web page. No accounts, no installation, no hardware beyond a laptop and a few phones.
Choose your player count and buy from €14.99. You receive a unique game code instantly. One purchase covers every player in the group.
Enter the game code on any laptop or desktop. Sophie — the case's CSI specialist — walks the group through the situation. Victor Hale, the Detective Inspector, takes over from there.
The laptop displays a QR code for each player. Scan it on a smartphone and you're in — no app, no login. Every player gets their own interrogation interface.
Type anything. The AI suspects respond in character — honestly, evasively, defensively, or not at all. Each player has a limited number of questions per suspect, so spend them carefully.
Documents, records, and forensic evidence unlock across three acts as the investigation deepens. The case board on the laptop shows everything the group has found.
Act 1 establishes the suspects. Act 2 surfaces the real connections. Act 3 opens the accusation. New information in later acts changes what earlier statements meant.
When the group is ready, the host makes the accusation on the laptop: name the killer, state the motive, cite the evidence. You get one attempt.
Victor narrates a personalised reveal that references everything your group actually asked and discovered. He tells you exactly how right — or wrong — you were, and why.
Each suspect is driven by a large language model with a detailed character profile: their history, their relationship to the victim, what they know, what they're hiding, and how they behave under pressure. A GM agent validates every response before it reaches the player — checking for consistency, preventing information leaks, and enforcing the dramatic structure of the case.
There are no scripted lines. The suspects don't draw from a database of pre-written answers. They reason, in character, about the question in front of them — which means you can catch them in contradictions across different conversations, and the things they don't say are as meaningful as the things they do.
The narrator, Victor Hale, runs on a more powerful model and handles the long-form narration, act transitions, and the final personalised reveal. His reveal script references your group's specific discoveries, accusations, and near-misses — it's different every time.
All suspect dialogue is available in English, Finnish, German, and French. The AI responds naturally in whichever language you choose — not via translation, but natively.
Fenwick, a fictional coastal town in northern England. Dr. James Whitmore — the town's GP for over two decades, trusted by everyone — is found dead behind his desk at 9:23pm on a Tuesday. The door was locked. Five people had reason to want him gone. You have three hours.
The case unfolds across three acts. What looks like a clean professional rivalry in Act 1 becomes something far darker by Act 3. There is a phantom character — someone who never appears in the interrogation room — whose name connects everything. Finding that name is how the case breaks open.
Has run Calloway's Pharmacy for twenty years. Calm under pressure. Speaks carefully — perhaps too carefully.
Ran Whitmore's surgery for a decade. Has an alibi. Has a secret she'd rather you didn't find.
Estranged from his father for three years. Arrived in Fenwick the day before the murder. Claims he came to reconcile.
Was writing a story about Whitmore. Won't say exactly what. Has a personal history with opioids he's never published.
Former Detective Chief Inspector. Knows how investigations work. Knows exactly how much she's required to say.
On the forensic team. Knows the physical evidence better than anyone. Has opinions she's not supposed to share.
Live Witness works for almost any group that wants something more active than a board game and more personal than a film. The most common occasions:
The game works best with people who enjoy conversation-driven experiences — asking a question and genuinely not knowing what the answer will be. No acting required, no preparation needed. Players who've never played a murder mystery before tend to do just as well as those who have.
For team building, Live Witness creates natural collaboration without the forced dynamics of typical corporate activities. Different players notice different things. The group has to synthesise those observations into a coherent theory. The debrief at the end — Victor's personalised reveal — gives you something specific to discuss.
The host: Any laptop or desktop with a modern web browser (Chrome, Firefox, Safari, Edge). The case board runs on the laptop screen — if you want the group to see it together, connect to a TV via HDMI.
Each player: Any smartphone with a web browser. No app to download. Players scan a QR code and are in the game within seconds.
Internet: A stable connection for all devices. Home Wi-Fi or mobile data both work. The game uses voice audio for narration — headphones are optional but improve immersion.
Nothing else. No cards, no printed materials, no props, no hosting kit. The whole game lives in the browser.
| Feature | Live Witness | Mystery box | Dinner theatre | Escape room |
|---|---|---|---|---|
| Ask suspects anything | Yes — free-form AI | No — scripted cards | Limited — actors | No suspects |
| Different every time | Yes | No — fixed answer | Fixed script | Fixed puzzles |
| No app or printing | Yes | Print required | Yes | Yes |
| Play anywhere | Yes — any browser | Yes | Fixed venue | Fixed venue |
| Solo friendly | Yes | Yes | No | Rarely |
| Personalised ending | Yes — AI-generated | Fixed reveal | Fixed script | No ending |
| Starting price | €14.99 | €25–60 | €40–120/person | €20–35/person |
Live Witness is an AI-powered multiplayer murder mystery game that runs in any web browser. You interrogate AI-driven suspects in real time using free-form text — no scripted choices, no menus, no predetermined answers. Ask anything, and the suspects respond based on what they know, what they're hiding, and what they've been instructed never to reveal.
One player purchases a session and opens the case board on any laptop. Additional players join on their phones by scanning QR codes — no app needed. The group interrogates suspects across three acts, unlocking evidence as they go. When ready, the group makes a final accusation on the laptop. The AI narrator Victor delivers a personalised verdict. Total time: 2–3 hours.
No. Live Witness runs entirely in a web browser on any device. No download, no installation, no account required. The host needs a laptop or desktop. Players join on any smartphone with a browser.
Live Witness supports 1 to 6 players across four tiers: Solo (1 player, €14.99), Duo (2 players, €19.99), Group (3–4 players, €24.99), and Party (5–6 players, €29.99). One purchase covers all players in the session.
Yes. The Solo tier (€14.99) is fully designed for one player. You run the case board on a laptop and interrogate suspects yourself. The full story, AI suspects, and personalised reveal all work identically to the multiplayer version.
A session lasts approximately 2–3 hours. The session timer starts when you begin the game and expires after three hours. There is currently no pause-and-resume — plan to play in one sitting.
You get one accusation attempt. If you name the wrong person, Victor explains exactly what you missed — the real killer, the real motive, and the evidence you overlooked or misread. A discount code for your next session is included with a correct verdict.
Traditional murder mystery games give you scripted statements and a fixed answer. Live Witness suspects are driven by large language model AI with detailed character profiles. They respond to anything you type — in character, with memory of what they've said, and with secrets they're actively protecting. Ask the same suspect the same question twice and their answer may differ depending on what pressure has built. The investigation changes based on what you ask, not what the game wants you to ask.
Live Witness is fully available in English, Finnish (Suomi), German (Deutsch), and French (Français). You choose the language at the start of the session. All suspect dialogue, narrator voice, and interface are in the selected language. You can also ask suspects questions in any language — they'll respond in the session language.
Currently there is one case: The Weight of Good Men, set in the fictional coastal town of Fenwick. Case 02 is in production. New cases will be added to the same platform — no new purchase or account needed to access them when they launch.
Technically yes — each session is a new purchase with a new game code. Because the suspects respond dynamically to your questions, no two sessions play out identically. However, once you know who the killer is, the element of genuine uncertainty is gone. We recommend playing each case once as a mystery and saving a replay for teaching someone else.
Live Witness is designed for players aged 18 and over. The themes include a realistic murder investigation, opioid overprescription, and family grief. The content is serious and adult in tone, not graphic or horror-oriented.
One purchase per session. No subscriptions. No in-game purchases. The price you see is everything.
Session expires three hours after activation. For players aged 18 and over. Payments processed securely via Stripe.
One purchase. One murder. Up to six players. No app required.
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