MMM

a mystery adventure involving MCP

🕵️ Main Story:"Murder at Château de Verre"

In the misty hills of Provence, the grand Château de Verre stands as a relic of aristocratic opulence. It’s 1923, and the mansion hosts a lavish soirée to celebrate the return of famed explorer Lucien Moreau, who has just returned from a perilous expedition in Egypt. But as the clock strikes midnight, Lucien is found dead in his study—poisoned wine in hand, a cryptic note beside him:“The past always returns.”

The guests are trapped in the mansion due to a storm. You, the player, take on the role of an investigator connected to the MCP Server. Your mission: collect clues (resources), ask the right questions (prompt templates), and take decisive actions to uncover the murderer before dawn.

🏰 Setting: Château de Verre Rooms:

• Study (crime scene)
• Library (clues)
• Conservatory (secret meetings)
• Cellar (hidden passage)
• Ballroom (alibis)
• Servants’ Quarters (eavesdropping).

Atmosphere: Candlelit halls, thunder outside, ticking clocks, and whispers of betrayal.

🧠 Game Mechanics (TypeScript + MCP Server)

Clue Collection: Use MCP to fetch resources (e.g., diary entries, letters, fingerprints).

Prompt Templates: Ask questions like:

ask_character("Éloise Moreau", "Where were you at midnight?");
ask_Character("Henri Duval", "Do you recognize this poison?");

Actions:

take_action("Search Study");
take_action("Analyze Wine Glass");
take_action("Confront Madeleine Rousseau");

MCP Context Protocol: Each clue updates the context window. You must manage context size and relevance to avoid losing critical information.

playing it

Via VS Code

"my-mcp-server-c9913e11": {
    "type": "stdio",
    "command": "python",
    "args": ["/workspaces/MMM/src/python/server.py"]
}

Using the client

cd src/python/server.py
python client.py

Website

Start index.html in /src

TIP: you might need to install "mcp[cli]".

TODO

• todo: accuse button, accuse person with item, if correct, they confess if incorrect, they will give angry response items can only be selected from list todo: display clue, for a room if character has a clue o when an item is selected, you can select to pick them up o create an inventory of items o if you click "accuse" your list of inventory items should be shown o if guilty person + correct murder weapon is combined then you will get confession

• preload all assets before game starts

• create mini images of people and items

• can we add animations in places

• can we add a list of characters to the starter page?