Emulate Sega Master System, Game Gear, and SG-1000 games through an MCP server interface. For developers building retro gaming tools, ROM analysis pipelines, or nostalgic game preservation projects.
io.github.drhelius/gearsystem
Local install
STDIO
No auth required
How models use it and what it is built for.
Emulate Sega Master System, Game Gear, and SG-1000 games through an MCP server interface. For developers building retro gaming tools, ROM analysis pipelines, or nostalgic game preservation projects.
Local install — runs as a subprocess.
Where to find authoritative docs and source for Gearsystem.
Paste any of these into Agent Studio after connecting Gearsystem.
Common questions about connecting and running Gearsystem.
What systems does this emulator support?
Gearsystem emulates three Sega platforms: Master System, Game Gear, and SG-1000. It runs as an MCP server, allowing programmatic control via stdio transport.
How do I install the Gearsystem MCP server?
Download the prebuilt binary for your platform from the GitHub releases page (version 3.9.6 available for macOS ARM64). The server communicates via stdio, so it integrates directly with MCP-compatible clients.
Can I use this for ROM preservation or archival?
Yes, the MCP interface allows you to load ROMs, capture emulator state, and automate testing or analysis workflows. This is useful for game preservation and compatibility testing pipelines.
What platforms are supported?
Prebuilt binaries are available for macOS ARM64. Check the releases page for other architectures or build from source if your platform isn't listed.
How does this compare to other Sega emulators?
Gearsystem is lightweight and designed for programmatic access via MCP, making it ideal for automation and tool integration rather than standalone GUI emulation. Other emulators may offer more features but lack this protocol interface.
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