3.1.0 / 24-05-2020



GearSystem is a Sega Master System / Game Gear / SG-1000 emulator for iOS, Mac, Raspberry Pi, Windows, Linux and RetroArch. The main focus is readability of source code, very high compatibility and quality of life features.


Most Recent Changes

Windows, Linux, macOS and Raspberry Pi 4

  • Full Debugger for Master System, Game Gear and SG-1000.
    Z80 disassembler with breakpoints and debug symbols.
    TMS9918 inspector, including pattern tables, name tables, sprites and palettes.
    Memory Editor.
    Open rom using cli argument.


  • Emulation parameters like region, system, mapper, etc.

All platforms

  •  Load gamepad mappings from file.
    Several bug fixes.