Libretro Gearsystem is an open source, multi-platform, Sega Master System / Game Gear / SG-1000 emulator written in C++.
The core Libretro Gearsystem was created by Ignacio Sanchez
This core is under GPLv3 license.
RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 |
---|---|---|---|---|---|---|---|
✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
Feature | Supported |
---|---|
Restart | ✔ |
Screenshots | ✔ |
Saves | ✔ |
States | ✔ |
Rewind | ✔ |
Core Options | ✔ |
RetroAchievements | ✔ |
RetroArch Cheats - Game Genie | ✔ |
RetroArch Cheats - Pro Acion Replay | ✔ |
Controls | ✔ |
Remapping | ✔ |
Softpatching | ✔ |
Filename | Description | MD5 | Provided |
---|---|---|---|
bios.gg | GameGear BIOS (bootrom) | 672e104c3be3a238301aceffc3b23fd6 | ❌ |
Put the bios like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 bios
┃ ┃ ┃ ┣ 📁 gamegear
┃ ┃ ┃ ┃ ┣ 🗒 bios.gg
Roms must have this extension:
This system supports compressed roms in .zip/.7z format. However, be careful, it is only an archive.
The files contained in the .zip/.7z must correspond to the extensions mentioned above.
Moreover, each .zip/.7z file must contain only one compressed rom.
Put your roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 gamegear
┃ ┃ ┃ ┃ ┣ 🗒 game.zip
The roms using No-Intro format are highly recommended.
For more information about roms, go to this tutorial!
To be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
You can configure various options in two different ways.
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
retroarch-core-options.cfg
:┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
Options | Options values | Variables (for configuration override) | Variables values |
---|---|---|---|
System (restart) | Auto ✅ / Master System / Mark III / Game Gear / SG-1000 / Multivision |
gearsystem_system |
Auto / Master System / Mark III / Game Gear / SG-1000 / Multivision |
Region (restart) | Auto ✅ / Master System Japan / Master System Export / Game Gear Japan / Game Gear Export / Game Gear International |
gearsystem_region |
Auto / Master System Japan / Master System Export / Game Gear Japan / Game Gear Export / Game Gear International |
Mapper (restart) | Auto ✅ / ROM / SEGA / Codemasters / Korean / MSX / Janggun / SG-1000 |
gearsystem_mapper |
Auto / ROM / SEGA / Codemasters / Korean / MSX / Janggun / SG-1000 |
Refresh Rate (restart) | Auto ✅ / NTSC (60 Hz) / PAL (50 Hz) |
gearsystem_timing |
Auto / NTSC (60 Hz) / PAL (50 Hz) |
Master System BIOS (restart) | Disabled ✅ / Enabled |
gearsystem_bios_sms |
Disabled / Enabled |
Game Gear BIOS (restart) | Disabled ✅ / Enabled |
gearsystem_bios_gg |
Disabled / Enabled |
3D Glasses | Both Eyes / OFF ✅ / Left Eye / Right Eye |
gearsystem_glasses |
Both Eyes / OFF / Left Eye / Right Eye |
Allow Up+Down / Left+Right | Disabled ✅ / Enabled |
gearsystem_up_down_allowed |
Disabled / Enabled |