Vegas Casino Sin City Slayer Murder Mystery

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A Las Vegas casino murder mystery party game a minimum of 8 players, ages 14+ for difficulty. Get ready for a hilarious celebrity-themed murder mystery party game set in glamorous Las Vegas! There are kit sizes available to cover large groups of up to 100 players. See kit sizes below and in the drop-down box above.

Spoil yourself, and choose the party ready option above, and our dedicated staff will fold and slip your clue cards for rounds one, two, and three into the envelopes to prevent you from seeing spoilers on the round cards.  Without the party ready option selected, you will have some assembly required with your kit and there will be spoilers upon opening the kit and viewing the rounds 2 and 3 clue cards.  

The download version is a different product and does not come with the party pack, as they are not seamless and materials should not be used together. 

Five out of ten difficulty.

Helpful Links:

 Sample game materials 

 Game Trailer Video

 Instant downloadable version - no shipping, no waiting. The download version does not come with the boxed set, as you'll have everything to play the game in the boxed set and the two versions are not seamless.

 Pinterest Board - more DIY food and decor.

Kit A: 18 unique suspect roles 

 Host character list (Characters #1-18)

 Free, 18 player printable invitation

 Corresponding pre-game site for Kit A

Kit B: 30 unique suspect roles 

 Host character list (Characters #19-30)

 Free, 30-player printable invitation

 Corresponding pre-game site for Kit B

Kit C: 38 unique suspect roles 

 Host character list for Kit C (Characters #31-38)

 Free, 38 player printable invitation

Kit D-F: 38 unique roles (above) plus expandable teams - see host character lists for details. 

  • Kit D - 48 players - includes 10 duplicated (non-suspect) Tabloid Crew team players. 
  • Kit E - 58 players - includes 20 duplicated (non-suspect) - 10 Tabloid Crew, 10 Monster Muggies Cast team players. 
  • Kit F - 68 players - includes 30 duplicated (non-suspect) - 15 Tabloid Crew, 15 Monster Muggies Cast team players. 

If you need a larger kit size, contact us - this game can expand to 100.  


Mystery Synopsis:

The most highly anticipated VIP party in Las Vegas is almost here! The Cosmo Resort & Casino is set to host a world-class soiree for celebrities, news media, and a few lucky Vegas locals who scored tickets. Some of the most prominent figures of our time will be in attendance, making this a night to remember. However, a grim situation is looming. Las Vegas has been terrorized by a serial killer known as the Sin City Slayer, who targets unsuspecting guests at exclusive events on The Strip. The Las Vegas police, in collaboration with federal agencies, are working to catch this deranged predator. Hopefully, the killer doesn’t have a ticket to this event. This is where your story begins.

Commercial Licensing: 

For hosting for profit &/or in public &/or as a benefit to your business or organization, you will need a commercial license - click here.

Minimum age:
14 years for difficulty. No foul language, drug usage, alcohol abuse, or sexual innuendos.
Difficulty rating:
Moderate, 5/10
Gender of players:
Flexible (most characters)
Minimum # of players:
8 players
Kit sizes:
6 different kit sizes, ranging up to 68 total players. We can make kits up to 100 players.
Expandable teams?:
Yes, kits D (10), E (20) & F (30) have expandable team players (non-suspects, duplicated)
Date of publication:
September 2009. Last rev. 6/5/24
Game license:
Single, private use. For the game license's Terms and Conditions, see below.
Content warning:
One optional character in kits B-F (Mace Freely) is a town lunatic - but this player may be skipped if you are sensitive to anything involving mental illness.


  • 5
    Great Night

    Posted by Unknown on Sep 16th 2019

    First time throwing a murder mystery party. The instruction lay everything out for you so it is super easy! Everyone had such a wonderful time and I can see our group doing another one in the near future. Loved the theme of sin city because it was easy to decorate for and the costume suggestions were things most of my guests had so no big investments needed from the attendees. Overall it was a great party!