Why it works for two families meeting
Nobody has to introduce themselves. Each guest gets a public card with a portrait and a role, and a private sheet naming three useful conversations with other characters. That is a concrete instruction to go and speak to a stranger, which is exactly what an engagement party needs and never provides.
Twenty minutes in, the room is exchanging times and names rather than asking what people do for a living. The four files are on the murder mystery kits page.
The host as neutral ground
Somebody has to host, and at this particular event the choice matters. The host knows the solution, releases the exhibits, answers for characters nobody is playing and reads the reveal, so they do not play a suspect.
Pick someone from neither family if you can: a friend, a sibling's partner, anyone who is not going to be accused of favouring one side when they rule on an agreement. If that is impossible, pick one person and say plainly at the start that they are the referee.
Which file, and how many people
The Cursed Manor is a safe choice for a mixed room: Noirval Manor in November 1887, a dead man behind a locked door, three keys for a single cabinet and a family of heirs waiting for their hour. Fifty pages, twenty-four exhibits, gothic atmosphere and an entirely rational solution.
Six to twelve players plus a host, about three hours, $39.90 whatever the head count. Seat the two families interleaved rather than facing each other, and split couples: characters who arrive as a block talk to nobody.
Where to be careful
Two things. First, the file gives characters secrets and permitted lies, and a guest meeting their future in-laws may not want to spend the evening being suspected. Deal the culprit's pack to someone comfortable with it, and never to a parent on either side.
Second, keep it optional. There is always one person who would rather sit and watch, and the honest answer is to let them, without a speech. Nothing in the evening requires a full table to work.
If the guest list is longer than twelve
A kit holds twelve character packs and stops there. For an engagement party that is often too small, so either run two tables of the same file with a host each, or commission a scenario written around your own guests.
The custom version reaches twenty-five players, $219 up to fifteen and $279 up to twenty-five, with an outline submitted for approval before anything is written. That approval step is the one to use here: it is where you say which relative must not be the culprit. See the custom murder mystery page, and the wedding party page for how an evening of this kind runs.
Frequently asked questions
Is a murder mystery a good idea when families have not met?+
It is one of the best uses of the format. Each guest gets a character and three named conversations to have, which replaces small talk with a concrete reason to speak to a stranger within the first twenty minutes.
Who should host at an engagement party?+
Ideally someone from neither family, since the host settles the signed agreements and could otherwise be accused of favouring a side. They know the solution and do not play a suspect, so choose them early and give them the guide.
What if we have more than twelve guests?+
Run two tables of the same file with a host each, or commission a custom scenario for up to twenty-five players. The custom route also lets you say, at the outline stage, which guests must not be made the culprit.
