Swipe through the images above to the last one to watch the introduction video.
Mystery Party Game Details
Theme : 1920s Mafia
Players : 10 to 20
Duration : 60 to 90 minutes
Age : 16 years and older
Crime : Murder
Difficulty : Intermediate
Ambience : Cocktail Dinner (appetizers and mingling) or seated around a table.
Language : English
Chicago, the 1920s. An agreement between powerful crime families is set to be finalized during a meeting aboard Al Capone’s yacht. Between rivalries, hidden agendas, and a recent murder, tensions are running high. Today, you are invited to this decisive gathering… and everything could fall apart.
Game Concept
A crime has been committed.
Each player takes on the role of a suspect and tries to uncover the culprit by analyzing clues and the statements made by the other characters.
No experience required. No host needed. Everything is designed so you can easily organize your game night and fully enjoy the experience with your guests.
The Mysterius Concept
An immersive ambient video drives the game forward, guides the players, reveals clues, and creates interactive moments that make the investigation more dynamic and realistic. It also allows the organizer to play and discover the outcome at the same time as the other participants.
Two Versions, Organizer’s Choice
- Guilty on a Mission: The guilty player knows their role from the start and creates suspicion throughout the investigation.
- Total Mystery: In this version, the culprit’s identity remains secret until the final reveal, even from the player portraying that character.
Host a Mysterius Game Night
- Download the game as soon as you receive it by email
- Choose the version best suited for your group (Guilty on a Mission or Total Mystery)
- Assign a character to each player (don't forget to assign one to yourself).
- Gather your group and start the atmosphere video on YouTube to begin the game.
- Lead the investigation to uncover the culprit
Only the culprit reveal text and the clues need to be printed. All other documents can be viewed on a phone or tablet, or printed if preferred.
Corruption and Mystery on the High Seas, 10 to 20 players, 60 to 90 minutes
The story begins in the 1920s, a decade known as the Roaring Twenties. Fertile ground for a sociocultural revolution, this decade bursts with change. Roaring Twenties is the decade of the American Dream, entertainment, crime and prohibition. The Chicago economy is booming and its mayor, Ralph Miller is endeavouring to build a port on the shores of Lake Michigan.
The new port will bring tourism to the region, increase naval traffic and merchant ship activities. However, organized crime families mostly own the land by Lake Michigan. These families have come to an agreement with Mayor Ralph Miller for the location of the new port. The agreement was set in place to ensure harmony and avoid disagreement between the clans. It also intends to secure peaceful and safe naval shipment transit in the area. The head of the families, Mr. Al Capone organized a meeting on his personal yacht to officialise the agreement. Present at the meeting are Mayor Miller, the Risotto family – represented by Tony Risotto, the Moretti family – represented by Marta Moretti and Abbot Alberto, as well as The Reverend Father Francisco Giordano whose presence was called upon to bless the agreement. A noteworthy event occurred six months ago, when Marta Moretti’s son was found shot to death. It is believed he was attempting to hijack a shipment of contraband goods belonging to Capone and would have been thwarted by the latter. Another noteworthy fact is that 3 months ago, the Mayor made a public address concerning the construction of a series of luxurious hotels near the future Chicago Port.
Will the assassination of Marta Moretti’s son have an influence on the signature of the said agreement? Could the meeting of these important key players be the perfect occasion for a vendetta? You are present today to sign the agreement and will play an important role in the unfolding of the meeting.
* This story is fictional and any resemblance to actual events is entirely coincidental.

