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Gearboy
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Gearboy

Active·★ 1.2k·GPL-3.0·Updated 2026-10-22

Gearboy is a cross-platform Game Boy / Game Boy Color emulator written in C++. It runs on Windows, macOS, Linux, BSD, and RetroArch, and includes an embedded MCP server for debugging and tooling. The emulator supports many cartridge types, accurate LCD emulation, save states, cheats, and a full debugger.

#bsd#emulation#emulator#game-boy#gameboy#gameboy-color-emulator#gameboy-emulator
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#libretro
$ Install
$ brew install --cask drhelius/geardome/gearboy
↗ Visit site★ GitHub
01

Features

01Accurate LCD controller emulation with correct timings and mid-scanline effects
02Game Boy Color support
03Battery-powered RAM save support and save states
04Game Genie and GameShark cheat support
05Full debugger with disassembler, breakpoints, memory editor, and VRAM viewer
02

Compatibility

Windows
Windows Desktop
Verified via docs
macOS
macOS Desktop
Verified via docs
Linux
Linux Desktop
Verified via docs
BSD
BSD Desktop
Verified via docs
RetroArch
RetroArch
Verified via docs
03

Quick start

1
$ brew install --cask drhelius/geardome/gearboy
04

Use cases

↳Playing and testing Game Boy and Game Boy Color games
↳Debugging and reverse engineering ROMs
↳AI-assisted debugging via MCP server for code analysis and inspection
05

Alternatives

⚡Top VS:
VSGeargrafx★248→VSGearlynx★78→VSGearcoleco★143→VS

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drhelius /
Gearboy
↗

Game Boy / Gameboy Color emulator, debugger and embedded MCP server for macOS, Windows, Linux, BSD and RetroArch.

1.2kGPL-3.0
Last commit1d ago
StatusActive
CategoryDev Tooling
Links
Documentation↗Discussion↗Issues↗Releases↗
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