Murder Mystery Party Invitations: What to Write and When to Send Them

Your guests decide whether to come based on what the invitation tells them, long before they understand how the game works. Send the date, location, 2.5–3 hour game window, RSVP deadline, costume expectations, and a simple reassurance that acting skills are optional. This guide includes a ready-to-adapt invitation, a follow-up schedule, character-assignment timing, and wording for late replies. It will help you secure 8 dependable Primary players while keeping the message intriguing, clear, and free of spoilers.

A murder mystery invitation should answer the practical questions before it starts building suspense. Guests need the date, location, arrival time, expected end time, RSVP deadline, and a clear description of the commitment. Then you can add the mysterious line.

Send the first invitation 3–4 weeks ahead for an ordinary weekend party. Give yourself time to confirm 8 dependable Primary players, add optional Secondary Characters, and recover from a polite “I forgot to reply.”

Fit your invitation into the full murder mystery planning checklist so RSVPs drive the next decisions.

What every invitation needs

Name the event as a participatory murder mystery so guests know they’re accepting a role and a 2.5–3 hour game. If you include arrival time separately, tell them when the mystery begins.

• Date and full address
• Arrival time and game start time
• Approximate end time
• Firm RSVP deadline
• Costume expectation
• Food and allergy information
• A note that acting experience isn’t required

Ask guests to reply only if they can stay for the complete game. A planned early departure can remove information other players need.

A ready-to-adapt invitation

Keep the first message compact enough to read on a phone. You can send character details after the RSVP is confirmed.

You are invited to a MortalCase Murder Mystery Party on Saturday, October 17, at [your full address]. Please arrive at 6:30 p.m.; the mystery begins at 7:00 and lasts 2.5–3 hours. Acting experience is not needed, and costumes are optional but welcome. Dinner and drinks will be provided, so tell me about any allergies when you reply. The story is PG-13 and contains some adult themes. Please RSVP by September 26 only if you can join the complete game. Your character details will follow after the guest list is confirmed.

Send that, and you get decisions you can act on. Your guests get a clear picture of what they said yes to.

Name the theme and half of that picture arrives on its own. Tell your friends you’re hosting GAME OVER – 80’s Arcade Theme, and they’ll see the room before they finish reading the message.

Set the RSVP deadline around your hosting jobs

Your deadline should leave at least a week for character assignment, guest reading, printing, and replacements. A Friday deadline for a Saturday game leaves no room for an unanswered message.

You’ll need 8–20 players for a MortalCase game. All 8 Primary Characters are required, while 12 Secondary Characters are optional. Do not count “probably” as a Primary player. Confirm 8 people who have explicitly said yes.

Assigning the right character to each guest begins after that confirmation. Reliability comes before costume enthusiasm when a required role is involved.

Once those confirmations land, you’ll see the split you’re working with, and casting 20 characters across an uneven guest list takes it from there.

Send character details in a separate message

You use the invitation to get a yes, and the character message to get people ready to play. Send them separately, so nobody skims a long wall of information before deciding.

Send each person only their own material, plus whatever general guidance is meant for all the guests. Ask them to read it before arrival and to keep private details private. Avoid group chats where character pages can be forwarded to the wrong person.

Do not hint at the solution in any invitation or reminder. The guest playing the killer finds out at The Reveal, like everybody else, and you can prepare the whole party without knowing the ending.

After the guest list is set, use this guide to prepare for your first MortalCase party.

Follow up without chasing forever

Send 1 friendly reminder a few days before the RSVP deadline. After the deadline, message non-responders individually with a final time for an answer. “I need to assign required roles tonight, so I will count no reply as a no” is clear and kind.

If someone declines, thank them and move on. Do not reduce the game below 8 or remove a Primary Character. Invite a backup or choose a new date if the required roles aren’t covered.

Getting guests excited before the party can happen through one restrained reminder, a costume idea, or a spoiler-free mood detail. Repeated teasers create more notifications than anticipation.

Chase the last few replies, and you get to host the party you planned instead of a smaller one.

“This game was a total hit for NYE with my group of 17.”

Send a last reminder with the plain details

2 or 3 days before the party, confirm the address, parking, arrival time, food plan, and expected end time. Remind guests to bring or review their character material according to the game instructions.

Keep this message spoiler-free and useful. If the forecast changed or the doorbell is broken, that matters more than another dramatic clue.

You can host and play at the same time, because nothing makes you open the solution first. You can say that to a curious guest without explaining how any of it works. It reassures the group that everyone will discover the ending together.

Your invitation is what gives you a dependable room. Mystery in the wording is fun; clarity in the commitment is what gets 8–20 prepared people through the door.

Adjust the wording for different groups

For close friends, a group message may be enough for the first invitation, but keep the commitment explicit. Familiarity doesn’t make an unanswered RSVP easier to cast. Ask for a direct yes or no by a date.

For coworkers or a mixed group, state the PG-13 tone, accessibility details, food plan, and whether alcohol is present. Give people a private way to mention character comfort preferences rather than asking them to discuss those in a group chat.

For a birthday, say whether the mystery replaces the main party activity or sits beside cake and gifts. Guests need to know that arriving halfway through isn’t like missing the first song on a playlist.

If someone asks to bring an uninvited partner, check the count before answering. You may add one of the optional Secondary Characters up to 20 players, but you still need time to send the correct material. A surprise guest should never be handed an invented role at the door.

Whatever the group, keep the title and event description readable. Decorative riddles can add atmosphere after the essential details, but they shouldn’t hide the address, deadline, or start time.

Use the same event name in every follow-up so guests can find messages later. If the first invitation says “MortalCase Murder Mystery Party,” don’t rename the thread “Saturday thing” when sending parking details. Put critical changes in a new direct message rather than editing an old invitation silently. Clear message history helps guests arrive at the right time with the right preparation, which is more valuable than maintaining a perfectly mysterious tone. Keep the final reminder easy to search.