Solve mysteries where your typing speed drives the story
Experience infinite replayability with a private AI DM that runs locally in your browser. No server lag, no cloud uploads, total privacy.
Plans from $7/mo
Fast typing + long pause
The AI DM interprets your hesitation as suspicion. A hidden drawer clicks open, revealing a faded photograph...
A private detective RPG, running entirely on your device
Play a narrative-driven mystery where the AI DM adapts to your typing rhythm — offline, private, and instant.
Your data never leaves your device
100% private on-device AI. No server lag, no cloud uploads. Your clues, your secrets, and your story stay strictly on your hardware.
AI DM reacts to your rhythm
The AI generates clues based on your typing speed and pause patterns. Hesitate too long? A new lead appears. Type fast? The suspect runs.
Infinite replayability
Every session is unique. Because the story branches are computed locally based on your real-time input, no two mysteries are ever the same.
Zero-latency immersion
Play offline in your browser. No loading screens, no buffering. Just pure, instant narrative flow whenever inspiration strikes.
Browser-based, no install
A premium game experience that runs directly in your browser. Lightweight, accessible, and ready to play instantly.
Privacy-first design
We never see your data. The AI model runs locally on your machine, ensuring total confidentiality for your gameplay and personal details.
Three steps
From opening the browser to solving the case.
Open
Launch MysteryMist in your browser. No download, no account setup required.
Type
Interact with the AI DM. Your typing speed and pauses shape the clues and the story.
Solve
Uncover the mystery entirely offline. Your data stays on your device, always.
Simple pricing
Pick a plan and start solving.
For casual detectives
- Full offline browser access
- Standard AI DM engine
- Cancel anytime
For mystery enthusiasts
- Advanced clue generation
- Deeper narrative branches
- Priority local processing
- Full case history
Frequently asked
How does the AI work offline?
MysteryMist runs entirely in your browser. The AI DM computes clues locally on your device, so your data never leaves your computer and you can play without an internet connection.
Is there a free version?
No — MysteryMist is a paid tool, with plans from $7 a month. The demo on this page shows exactly what you get.
Is my gameplay data private?
Yes. Since all story branches are computed locally, your typing patterns, choices, and progress stay on your device. We never store your mystery data on our servers.
How do I pay, and can I cancel?
By card through our checkout. Plans are billed monthly and you can cancel at any time.
Start your private investigation.
Pick a plan and dive into an infinite, privacy-first mystery with your own on-device AI DM.
See plans