Geargrafx is an accurate cross-platform TurboGrafx-16 / PC Engine / SuperGrafx / PCE CD-ROM² emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch.
This is an open source project with its ongoing development made possible thanks to the support by these awesome backers. If you find it useful, please consider sponsoring.
Don't hesitate to report bugs or ask for new features by opening an issue.
- Windows:
- Geargrafx-1.4.0-windows-x64.zip
- Geargrafx-1.4.0-windows-arm64.zip
- NOTE: If you have errors you may need to install:
- macOS:
- Linux:
- Geargrafx-1.4.0-ubuntu-24.04.zip
- Geargrafx-1.4.0-ubuntu-22.04.zip
- NOTE: You may need to install
libsdl2andlibglew
- RetroArch: Libretro core documentation
- Dev Builds: GitHub Actions
- Accurate emulation supporting the entire HuCard PCE / SGX catalog.
- Initial support for CD-ROM² and Super CD-ROM² systems (in development).
- Save states with preview.
- Multi Tap (up to 5 players).
- Standard Gamepad (2 buttons), Avenue Pad 3 (3 buttons, auto-configured based on game), Avenue Pad 6 (6 buttons).
- Adjustable scanline count (224p, 240p or manual).
- RGB or Composite color output.
- Compressed rom support (ZIP).
- Internal database for automatic rom detection.
- Supported platforms (standalone): Windows, Linux, BSD and macOS.
- Supported platforms (libretro): Windows, Linux, macOS, Raspberry Pi, Android, iOS, tvOS, PlayStation Vita, PlayStation 3, Nintendo 3DS, Nintendo GameCube, Nintendo Wii, Nintendo WiiU, Nintendo Switch, Emscripten, Classic Mini systems (NES, SNES, C64, ...), OpenDingux, RetroFW and QNX.
- Full debugger with just-in-time disassembler, CPU breakpoints, memory access breakpoints, code navigation (goto address, JP JR and CALL double clicking), debug symbols, automatic labels, memory editor, PSG inspector and video viewer including registries, tiles, sprites, backgrounds, CD-ROM sub-systems and both VDCs in SuperGrafx mode.
- Windows and Linux Portable Mode.
- ROM loading from the command line by adding the ROM path as an argument.
- ROM loading using drag & drop.
- Support for modern game controllers through gamecontrollerdb.txt file located in the same directory as the application binary.
- BIOS: Geargrafx requires a BIOS to run CD-ROM games. It is possible to load any BIOS but the System Card 3.0 with md5
38179df8f4ac870017db21ebcbf53114is recommended. - Mouse Cursor: Automatically hides when hovering over the main output window or when Main Menu is disabled.
- Portable Mode: Create an empty file named
portable.iniin the same directory as the application binary to enable portable mode.
- Docking Windows: In debug mode, you can dock windows together by pressing SHIFT and dragging a window onto another.
- Multi-viewport: In Windows or macOS, you can enable "multi-viewport" in the debug menu. You must restart the emulator for the change to take effect. Once enabled, you can drag debugger windows outside the main window.
- Debug Symbols: The emulator automatically tries to load a symbol file when loading a ROM. For example, for
path_to_rom_file.romit tries to loadpath_to_rom_file.sym. You can also load symbol files using the GUI or the CLI. It supports PCEAS (old and new format), wla-dx and vasm file formats.
geargrafx [options] [rom_file] [symbol_file]
Options:
-f, --fullscreen Start in fullscreen mode
-w, --windowed Start in windowed mode with menu visible
-v, --version Display version information
-h, --help Display this help message
- Install Microsoft Visual Studio Community 2022 or later.
- Open the Geargrafx Visual Studio solution
platforms/windows/Geargrafx.slnand build.
- Install Xcode and run
xcode-select --installin the terminal for the compiler to be available on the command line. - Run these commands to generate a Mac app bundle:
brew install sdl2
cd platforms/macos
make dist- Ubuntu / Debian / Raspberry Pi (Raspbian):
sudo apt install build-essential libsdl2-dev libglew-dev libgtk-3-dev
cd platforms/linux
make- Fedora:
sudo dnf install @development-tools gcc-c++ SDL2-devel glew-devel gtk3-devel
cd platforms/linux
make- Arch Linux:
sudo pacman -S base-devel sdl2 glew gtk3
cd platforms/linux
make- FreeBSD:
su root -c "pkg install -y git gmake pkgconf SDL2 glew lang/gcc gtk3"
cd platforms/bsd
gmake- NetBSD:
su root -c "pkgin install gmake pkgconf SDL2 glew lang/gcc gtk3"
cd platforms/bsd
gmake- Ubuntu / Debian / Raspberry Pi (Raspbian):
sudo apt install build-essential
cd platforms/libretro
make- Fedora:
sudo dnf install @development-tools gcc-c++
cd platforms/libretro
makeThank you to all the people who have already contributed to Geargrafx!
Geargrafx is licensed under the GNU General Public License v3.0 License, see LICENSE for more information.