Gearsystem

Overview

Gearsystem is a highly accurate cross-platform emulator for Sega Master System, Game Gear, and SG-1000 consoles, written in C++. It features a comprehensive debugger with disassembler, breakpoints, memory inspection, and more. The standout feature is its embedded MCP server that enables AI agents like GitHub Copilot and Claude to assist with debugging tasks. The server exposes tools for execution control, memory inspection, hardware status monitoring, rewind functionality, and ROM hacking capabilities. The project is actively maintained with regular releases and comprehensive documentation.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• gearsystem-debugging

  Game debugging, code tracing, breakpoint management, hardware inspection, and reverse engineering.

  Try:Set a breakpoint at address 0x1234Try:Show me the current CPU registersTry:Trace the execution flow of the game
• gearsystem-romhacking

  Cheat creation, memory searching, ROM data modification, text translation, and game patching.

  Try:Search for a specific value in memoryTry:Create a cheat code for infinite livesTry:Translate Japanese text in the ROM

Note: Tool names and descriptions were inferred from Agent Skills documentation referenced in the README. The actual MCP tool implementations are detailed in a separate MCP_README.md file not provided in the truncated text.

Comparable tools

Installation

gearsystem --mcp-stdio your_rom.sms

{
  "mcpServers": {
    "gearsystem": {
      "command": "path/to/gearsystem",
      "args": ["--mcp-stdio"]
    }
  }
}

FAQ

Which AI agents are compatible with Gearsystem MCP server?

The MCP server is compatible with GitHub Copilot, Claude, Codex, and other AI agents that support the Model Context Protocol.

Can I use Gearsystem MCP server without the GUI?

Yes, use the --headless flag with --mcp-stdio or --mcp-http to run without graphical interface.

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