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Cheat Engine MCP Bridge — TCP Enhanced Edition

A fork of miscusi-peek/cheatengine-mcp-bridge that replaces Windows Named Pipe with a native C TCP bridge, enabling remote CE control, zero pywin32 dependency, and multi-instance support.

Demo Video

This Fork vs Original — Key Differences

Architecture

ORIGINAL (v12.0.0)                         THIS FORK (v15.0.0)
AI Client                                  AI Client
  │ stdio JSON-RPC                           │ stdio JSON-RPC
  ▼                                          ▼
mcp_cheatengine.py                         mcp_cheatengine.py
  │ Named Pipe (pywin32)                     │ TCP socket (stdlib only)
  ▼                                          ▼
\\.\pipe\CE_MCP_Bridge_v99                 ce_mcp_tcp.dll (native C)
  │ Worker thread (Lua pipe I/O)             │ Winsock2 + select()
  ▼                                          ▼
ce_mcp_bridge.lua → Target Process         ce_mcp_bridge.lua → Target Process

Pros & Cons Comparison

Security: TCP has no auth/encryption. Only expose on trusted networks. Never open port 17171 to the internet.

Project Structure Comparison

ORIGINAL                                   THIS FORK
────────                                   ─────────
MCP_Server/                                MCP_Server/
├── mcp_cheatengine.py  (pywin32 pipe)     ├── mcp_cheatengine.py  (TCP stdlib)
├── ce_mcp_bridge.lua   (~6700 lines)      ├── ce_mcp_bridge.lua   (~5700 lines)
├── ce_tcp_relay.py     (TCP relay)        ├── ce_mcp_tcp_x64.dll  ← NEW: native DLL
├── test_mcp.py                            ├── ce_mcp_tcp_x86.dll  ← NEW: native DLL
└── requirements.txt    (mcp + pywin32)    ├── test_mcp.py
                                           └── requirements.txt    (mcp only)
AI_Context/             (docs)
                                           NativeBridge/           ← NEW: DLL source
                                           ├── ce_mcp_tcp.c        (770 lines C)
                                           ├── build.bat
                                           └── bin/{x64,x86}/

                                           AI_Context/             (docs)

Key structural differences:

• Removed: ce_tcp_relay.py — no longer needed, TCP is native
• Removed: pywin32 from requirements — TCP uses Python stdlib
• Added: NativeBridge/ — compiled C DLL source and build system
• Added: Pre-built DLLs in MCP_Server/ for easy deployment
• Reduced: Lua bridge from ~6700 to ~5700 lines (dead FFI/pipe code removed)

Setup

1. Clone the Repository

git clone https://github.com/HollyZoe/cheatengine-mcp-tcp-bridge.git
cd cheatengine-mcp-tcp-bridge

2. Install Python Dependencies

Prerequisites: Python 3.10+ (download)

The MCP server requires the mcp Python package (Model Context Protocol SDK). This is not a built-in module — you must install it manually:

pip install -r MCP_Server/requirements.txt

Or install directly:

pip install mcp

If you have multiple Python versions, use python -m pip install mcp to ensure it installs to the correct environment.

Verify the installation succeeded:

python -c "from mcp.server.fastmcp import FastMCP; print('OK')"

If you see ModuleNotFoundError: No module named 'mcp', the install failed — check:

• You're using the same python that Cursor/your AI client will use
• Try python -m pip install mcp instead of just pip install mcp
• On Windows, pip may warn scripts are not on PATH — this is fine, Cursor spawns the server via the python command directly

Note: TCP transport (default) does not require pywin32. Only legacy Named Pipe transport (CE_TRANSPORT=pipe) needs it.

3. Place DLL

Copy ce_mcp_tcp_x64.dll (or _x86.dll for 32-bit CE) into your Cheat Engine directory:

C:\CE 7.5\cheatengine-x86_64.exe
C:\CE 7.5\ce_mcp_tcp_x64.dll    ← here

DLL source: MCP_Server/ or NativeBridge/bin/.

4. Load in Cheat Engine

1. Attach CE to your target process
2. File → Execute Script → open MCP_Server/ce_mcp_bridge.lua → Execute

Or via Lua console:

dofile([[C:\path\to\MCP_Server\ce_mcp_bridge.lua]])

Expected output:

[MCP] CE x64 - loading ce_mcp_tcp_x64.dll
[MCP] DLL loaded OK
[MCP] Bridge started on port 17171 (native TCP, 1ms poll)

5. Configure AI Client

{
  "mcpServers": {
    "cheatengine": {
      "command": "python",
      "args": ["C:/path/to/MCP_Server/mcp_cheatengine.py"],
      "env": { "CE_HOST": "127.0.0.1", "CE_PORT": "17171" }
    }
  }
}

{
  "mcpServers": {
    "cheatengine": {
      "command": "python",
      "args": ["C:/path/to/MCP_Server/mcp_cheatengine.py"],
      "env": { "CE_HOST": "127.0.0.1", "CE_PORT": "17171" }
    }
  }
}

[mcp_servers.cheatengine]
command = "python"
args = ['C:\path\to\MCP_Server\mcp_cheatengine.py']

{ "env": { "CE_HOST": "192.168.1.100", "CE_PORT": "17171" } }

netsh advfirewall firewall add rule name="CE MCP" dir=in action=allow protocol=TCP localport=17171

6. Verify

Ask the AI: "Ping Cheat Engine"

{"success": true, "version": "15.0.0", "message": "CE MCP Bridge v15.0.0 alive"}

Environment Variables

Available Tools (~161)

Full reference: AI_Context/MCP_Bridge_Command_Reference.md

Tool Testing Results

Full testing on all 161 tools (target: Notepad.exe on Windows 10):

Troubleshooting

Critical: BSOD Prevention

Disable CE → Settings → Extra → "Query memory region routines". Memory scans on DBVM pages trigger CLOCK_WATCHDOG_TIMEOUT BSODs with it enabled.

Credits

Fork of miscusi-peek/cheatengine-mcp-bridge by @miscusi-peek. Contributors: @libangli218, @lauralex, @iamtyroon.

Disclaimer

For educational and research purposes only. Do not use for malicious hacking, cheating in multiplayer games, or violating Terms of Service.