A libretro-based emulation frontend that aims to be the easiest way to play your retro games, discover awesome mods for those games, and just have a dang good time.

Library of generic and type safe containers in pure C language (C99 or C11) for a wide collection of container (comparable to the C++ STL).

very low-level YM2608B/YM2610/YM2612 emulator

Compatible re-implementation of the Famicom Disk System BIOS under an OSS license

PC Engine / TurboGrafx-16 emulator and debugger for macOS, Windows, Linux, BSD and RetroArch.

A language-agnostic JSON-encoded instruction-by-instruction test suite for the 68000.

Metal Gear Solid PSX reimpl repo

Collection of cross-platform one-file C/C++ libraries with no dependencies, primarily used for games

ROMs for testing SNES 65816 and SPC-700 CPUs

A SNES emulator, in C

Yet another purist Doom port.

A language-agnostic JSON-encoded instruction-by-instruction test suite for the 8088, 68000, 65816, 65[c]02 and SPC700 that includes bus activity.

An implementation of OpenGL 3.x-ish in clean C

jolly good 6502

Cycle accurate Mega Drive emulator

Sonic the Hedgehog sprite editor, portable clone of Xenowhirl's SonMapEd.

A cycle-accurate Nintendo Game Boy Advance emulator.

z80 emulator

OpenEmu Core plugin with JollyCV to support ColecoVision emulation

A Motorola 68000 emulator written in C++

Game Boy Advance, Game Boy, Game Boy Color, and DS Emulator

X terminal emulator rendering through OpenGL ES Compute Shaders

A command line tool to convert Neo Geo roms into the format needed for NeoSD

a simple and human readable binary diff format and implementation

ColecoVision emulator and debugger for macOS, Windows, Linux, BSD and RetroArch.

Emulator for the Konami VRC7

sega megadrive emulator

BSD-licensed Yamaha FM sound cores (OPM, OPN, OPL, and others)