Murder Mystery Games for 10-20 Players

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      Big group, bigger suspect list. Our murder mystery games for large groups give every one of your 10–20 guests a named character with secrets of their own — no spectators, no awkward team-sharing. They’re the go-to for birthday bashes, office parties, holiday gatherings and any celebration that deserves a plot twist.

      48 products

      How large-group murder mysteries work

      Each game includes editions sized for bigger casts — choose the 4–14 or 4–20 player version of your favourite theme and hand every guest a character booklet. The killer is drawn at random during play, so nobody (including the host) sits out of the fun. Interrogations naturally break into huddles and cross-table accusations, which is exactly what makes big-group games such a riot.

      Hosting tips are built in: the host guide covers pacing a larger room, and each kit’s menu, decoration and costume suggestions scale happily from a living room to a hired venue. Remote team? The games play over video call, making them a favourite for office game nights and team socials — our Office Christmas party games are a December staple.

      Frequently asked questions

      Can all 15 of my guests have a proper role?

      Yes — in the 4–20 edition every guest plays a distinct named suspect with their own backstory, motives and secrets. No doubling up and no bystanders.

      What’s the best murder mystery for an office party?

      The Office Christmas Sweater and 1980s games are perennial team favourites — easy costumes, big laughs, and nobody needs prior experience. Browse Christmas murder mystery games for the seasonal picks.

      Is a big group harder to host?

      Not really — rounds are structured, so the host guide does the crowd control for you. Allow around 3 hours for groups at the larger end.

      What about more than 20 guests?

      Step up to our 21–30 player games, which use expansion casts to keep everyone in the story.

      Explore all murder mystery party games or find your size on the games by player count page.