The Perfect Murder — Free Online Mafia & Social Deduction Game

Lies, deduction, and betrayal — no game master required. Play the classic Mafia / Werewolf party game online with 4–20 friends, free in your browser. No download, no signup.

Play Now · How to play

How It Works

  1. Gather your group. Create a room and share the code. Everyone joins from their own phone — no signup required.
  2. Get your secret role. Roles are dealt privately to each player's screen. No one knows who you are unless you give yourself away.
  3. Night falls. The Mafia silently picks a victim, the Detective investigates, the Doctor protects — all in secret.
  4. Debate and vote. When day breaks, the village must figure out who the killers are. Accuse, defend, bluff — then vote someone out.

The Roles

Each player gets one secret identity. The village team must find and eliminate the Mafia before it's too late.

Village

  • Villager. An ordinary citizen. Your vote and your ability to read people are your only weapons.
  • Detective. Each night, investigate one player to learn if they belong to the Mafia.
  • Doctor. Each night, choose one player to protect. If the Mafia targets them, you save their life.

Mafia

  • Mafia. You know your teammates. Each night, coordinate in secret to eliminate a villager.
  • Don. The Mafia boss. You appear innocent when investigated by the Detective.

Neutral

  • Jester. A wildcard. The Jester wins by getting voted out — making everyone second-guess every accusation.

See all roles in the full guide

Why play The Perfect Murder?

  • Free and instant — no downloads, no installs, no accounts required.
  • 4 to 20 players, on any device with a browser.
  • Real-time engine automates phases, timers, and narration so everyone can play.
  • Customizable roles and rules to fit your group.

Frequently asked questions

Is The Perfect Murder free?

Yes. It's completely free to play online with no download or signup required.

How many players do I need?

4 to 20 players. It plays best with 6 or more.

Does it work on mobile?

Yes. It runs in any modern browser on phone, tablet, or computer.

Is it the same as Werewolf?

Mafia and Werewolf are the same family of social deduction games. The Perfect Murder uses the Mafia theme with both classic and modern roles.

Do I need an account?

No — join any game with just a room code. An optional free account unlocks stats and customization.