The real problem with big groups
It isn't that big groups are hard to entertain. It's that most games give one person the floor at a time, so with twelve players you spend 92% of the game listening. Side conversations start, phones come out, and the group quietly splits into two.
A game that works at scale has to either give everyone something to do simultaneously, or make listening genuinely useful.
What to look for
- Simultaneous secret actions — everyone reveals or votes at once, on their own device or slip of paper.
- Listening that pays off: if paying attention to other people's answers wins you the round, nobody drifts.
- No elimination, or elimination that doesn't remove someone for twenty minutes.
- A hard round timer. Big groups deliberate forever without one.
Running Imposter Party with 10–12
Twelve is the cap, and the game changes character above about eight — it stops being an interrogation and becomes a room full of people building a case.
Two settings matter at this size. First, add a second imposter: with ten or more players a single imposter gets caught too easily, and a pair can back each other up, which produces much better arguments. Second, cap vote calls per player, or one enthusiastic person will call a vote every ninety seconds.
- Two imposters from about nine players up; three at twelve if the group is experienced
- Round timer on — five minutes is usually right for a big group
- Limit vote calls to one or two per player per game
- Go round the circle for the first question each, then let it go free-form
Keeping the quiet half involved
In a group of twelve there are always three or four people who won't volunteer anything. The fix isn't to call on them — it's to make the first round structured: everyone asks one question and answers one question, in order, before free discussion opens. After one structured lap, most people are in.
The other trick is packs. Someone who has nothing to say about a submarine will have plenty to say about a K-Pop group or a football team. Pick the pack for the room, not for yourself.