🚀 MCPlayerOne

Turn your imagination into an AI generated game

Welcome to the MCPlayerOne — a synthwave, maze-crawling, world-building adventure platform! Create, explore, and play in wild, AI-generated worlds. Powered by Next.js, Langflow, and your imagination.

App Screenshot

Explore your world: Example gameplay

🎮 Connect & Play via MCP Tools

You can play instantly by connecting to the public MCP Game Server using your favorite agent tools—no server setup required!

🧪 Warp Preview (Terminal)

Download and install Warp Preview
Open Warp Preview
Go to Settings → Manage MCP servers → +Add
Paste the following into the "SSE endpoint URL" field:
```
https://mcplayerone.onrender.com/api/v1/mcp/sse
```
Save and connect!
- You can now interact with the MCP Game Server directly from Warp Preview.

🖥️ Cursor (AI IDE)

Install Cursor IDE

Add the MCP Game Server as a tool server:

Open Cursor and go to Extensions/Integrations.

Add a new MCP tool server with this config:

{
  "MCPlayerOne": {
    "transportType": "sse",
    "url": "https://mcplayerone.onrender.com/api/v1/mcp/sse",
    "openapi": "https://mcplayerone.onrender.com/api/v1/mcp/openapi.json"
  }
}

Start playing! Use Cursor's chat or code tools to send MCP commands, automate moves, or analyze game data.

🤖 Claude (AI Chatbot/Desktop)

Install Python and pip
Install uv:
```
pip install uv
```
Install mcp-proxy:
```
uvx install mcp-proxy
```

Add this to your Claude Desktop config:

{
  "mcpServers": {
    "MCPlayerOne": {
      "command": "uvx",
      "args": ["mcp-proxy", "https://mcplayerone.onrender.com/api/v1/mcp/sse"]
    }
  }
}

Restart Claude Desktop and select the MCPlayerOne server to start playing!

🛠️ Troubleshooting

404 or connection errors? Make sure you're using the correct Render URL above.
Agent not responding? Check that you're using the correct SSE endpoint and OpenAPI URL.
Session timeouts? SSE sessions last for 1 hour of inactivity—just reconnect if needed.

🚦 Getting Started

Whether you want to jump right into a game or set up your own server, getting started with MCPlayerOne is easy:

To Play Instantly

Use any of the methods above (Warp Preview, Cursor, Claude, etc.) to connect to the public MCP Game Server.

Once connected, tell the agent you would like to play an MCPlayerOne game.

Start an MCPlayerOne Game

Pick a Game and Play

Now, just tell the agent which game you'd like to play and optionally give yourself a username (the agent will choose one for you if you don't).

Create your own game

You can also create and generate your own game to play.

Have fun with it, point it at a website, maybe a GitHub repo, or just give it a theme. The more creative and imaginative you are the more interesting your game. This is where AI generation really shines.

For example, tell the agent something like "Let's create a new MCPlayerOne game, use github https://github.com/SonicDMG/mcp-game-server for the theme" or "Create a new MCPlayerOne game with a theme based on DOOM playing as a space marine".

Game creation takes about 2-3 minutes so please be patient.

🎲 Gameplay

🗝️ Available MCP Tools

These are the main MCP tools you (or your agent) can use to play. Most agents will choose actions based on your input or goals.

Tool Name	What It Does
listStories	List all available game stories that can be played.
createGame	Generate a new game story, locations, items, and cover image by theme.
startGame	Start a new game session for a user in a specific story, or resume if started.
getGameState	Get the current state of the game (player and location) for a user and story.
lookAround	Get details about the player's current location (description, items, exits).
movePlayer	Move the player to a new location (by target ID) if valid.
takeItem	Pick up a specified item from the current location.
examineTarget	Get a detailed description of a specific item or feature in the current room.
getLeaderboard	Retrieve the leaderboard data for a specific story.
getStoryById	Get the details of a specific story by its logical ID.

✨ Features

🪐 AI-Generated Worlds: Instantly create new stories and mazes
👾 ASCII & Pixel Art: Retro visuals and grid-based layouts
🌌 Leaderboard: Compete for glory, see winners and the fallen
🚀 Artifacts & Rooms: Collect, explore, and interact
🐉 Synthwave Theme: Neon colors, pixel dragons, and more
🧑‍💻 Powered by Langflow: Next-level AI integration

🛠️ Local Development

Want to run your own server or contribute? Follow these steps:

npm install
npm run dev

Open http://localhost:3000 to play locally.

Edit .env to set up API keys, endpoints, or tool access as needed.
For Astra DB, Langflow, or other integrations, follow the comments in .env.example.

MCP Tool Setup (for local dev)

For local dev, use:
- http://localhost:3000/api/v1/mcp/sse (SSE endpoint)
- http://localhost:3000/api/v1/mcp/openapi.json (OpenAPI spec)
All MCP tools are enabled by default in local dev.

🌟 Contributing

Pull requests are welcome! Open an issue, fork, and help us build the wildest worlds in the metaverse.

Star the repo ⭐

🔗 Links

Langflow

📑 Error & Status Code Reference (Addendum)

This section documents the main error and status codes used by the MCP Game Server API and SSE/JSON-RPC interface, for quick reference:

HTTP Status Codes

Code	When Issued	Meaning
200	Successful request (may include errors in body for game logic)	OK
400	Malformed request, missing/invalid parameters	Bad Request
403	Action not allowed (e.g., unmet requirements)	Forbidden
404	Resource not found (player, story, location, item)	Not Found
409	Conflict (e.g., story with same ID exists)	Conflict
500	Internal server error	Server Error

JSON-RPC Error Codes (SSE/Tool Proxy)

Code	When Issued	Meaning
-32000	Generic server error (proxy failure, non-JSON response, etc.)	Server error (JSON-RPC 2.0 reserved)
-32601	Tool or method not found	Method not found (JSON-RPC 2.0)
-32602	Invalid parameters for a tool/method	Invalid params (JSON-RPC 2.0)
-32603	Internal JSON-RPC error	Internal error (JSON-RPC 2.0)

Game Logic/Response Fields

Field	When Present	Meaning
success	All responses	true if operation succeeded, false otherwise
error	On failure	Error message for the user/agent
hint	Sometimes	Optional hint for the user/agent
needsPlayer	Player not found	Indicates the client should call /start

Notes

Game logic errors (e.g., wrong answer, missing item) may return HTTP 200 with success: false and an error message in the body.
JSON-RPC error codes are used in SSE and tool proxying for agent compatibility.
See the OpenAPI spec for full schema details.

Thanks for visiting, explorer! May your mazes be twisty and your artifacts shiny. 🟪🟦🟩🟧🟨🟫