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Social deduction and hidden-role games, explained

Short answer

In a social deduction game, some players secretly belong to a hidden team, usually a smaller one, and everyone else has to work out who they are through discussion, voting and watching how people play. Werewolf (Mafia), The Resistance, Avalon and Secret Hitler are well-known examples. The design challenge is giving the hidden players enough cover and the majority enough clues.

Social deduction games are about people more than pieces. Someone at the table is lying, and the game is working out who.

How they work

Most social deduction games share the same parts:

  1. Secret roles. At the start, each player is secretly dealt a role or team, often a large “good” team and a small hidden “bad” team.
  2. Asymmetric information. The hidden team usually knows who its members are; the majority doesn’t.
  3. A shared task. Everyone works on missions, votes or a common goal, which the hidden team quietly sabotages.
  4. Discussion and accusation. Players argue, vote, and read each other’s choices to find the traitors.

Well-known examples

Game What makes it distinct
Mafia / Werewolf The original party game, first played in the 1980s; large groups, a moderator, and players are eliminated
The Resistance Mission teams vote on success; no elimination, everyone plays to the end
Avalon The Resistance with special roles such as Merlin, who knows the traitors but must stay hidden
Secret Hitler Players pass laws; a hidden leader the other team must find
One Night Ultimate Werewolf One round of about ten minutes, with roles that swap during the night

Semi-cooperative games

Some games are mostly cooperative with a traitor mixed in. Dark Web, the cancelled Spider-Goat Games title, was one: hackers worked together to expose a corporation while hidden IT staff sabotaged them, and it added push-your-luck drawing on top. The tension comes from not knowing whether the person helping you is really helping.

Designing one: what to get right

Playtesting matters even more here, because the fun depends on the group. See our playtesting guide, and test with people who don’t know each other well as well as close friends.

Play them in person

Social deduction is at its best around a real table, where you can watch faces. We Geek Together stocks party and deduction games and runs game nights in Sandy and Provo, Utah.

Questions people ask

What is the difference between social deduction and hidden roles?

Hidden roles is the mechanic: players have secret identities or teams. Social deduction is the kind of game built on it, where the main activity is talking, bluffing and deducing who is who.

What is a good social deduction game for beginners?

The Resistance and Avalon are popular starting points: short, no player elimination, and simple rules. Werewolf-style games work well with large groups and a confident moderator.

How many players do social deduction games need?

Most work best with five or more, because hidden teams need enough other players to hide among. A few are designed for smaller groups.

What does semi-cooperative mean?

Most players share a goal, but some have secret goals of their own, so you can't fully trust your teammates.