A New Case. Every Day.

Solve Unique Murder Mysteries

Every case is unique. Interrogate suspects, examine evidence, and crack the case before time runs out. No two mysteries are ever the same.

Free daily case — no credit card required

Dossier app home screen showing today's mystery case
Scroll
Case Features

Every Detail Matters

Dossier isn't just another puzzle game. It's an immersive detective experience with unique cases every time.

Unique Mysteries

Every case is unique. Suspects, motives, evidence, red herrings — no two cases are ever the same.

Interrogate Suspects

Question suspects in real-time conversations. Press them on alibis, catch contradictions, and uncover the truth.

Daily Cases

A new free case drops every day — same mystery for everyone, like Wordle. Compare solve times with friends.

Difficulty Tiers

From Rookie to Cold Case. More suspects, more clues, more red herrings. Choose your challenge level.

Detective Ranks

Earn XP, build streaks, and climb from Rookie to Chief Inspector. Track your stats and share your results.

Premium Cases

Unlock unlimited cases, all difficulty tiers, and unlimited interrogations with Detective Pro or Chief Inspector.

Inside The App

See It In Action

From opening your dossier to cracking the case — every screen is designed for immersive detective gameplay.

Daily Case
Case File
Interrogate
Accuse
Choose Case
Case Solved
Your Profile
Swipe to explore
The Investigation

How It Works

Open your daily dossier
01

Open Your Dossier

Each day, a sealed case file lands on your desk. Open it to reveal the victim, crime scene, and list of suspects.

Interrogate suspects and gather evidence
02

Investigate & Interrogate

Examine evidence, read autopsy reports, and interrogate suspects through real-time conversations. Every answer matters.

Solve the case and earn XP
03

Make Your Accusation

When you've cracked the case, name the killer. Get it right and earn XP, build your streak, and climb the ranks.

Choose Your Difficulty

From quick 5-minute cases to deep 35-minute investigations

Rookie

3 suspects

~5 min

Detective

4 suspects

~10 min

Inspector

5 suspects

~20 min

Cold Case

6 suspects

~35 min

Choose your case difficulty in the Dossier app
Case solved screen showing victory
Case Awaiting

Your First Case Is Waiting

A body has been discovered. Suspects have been identified. The evidence is piling up. Can you solve it?

Free on iOS & Android