a Java Fantasy Console/Game Engine
Emulator of homebrew and hacked games for arcade hardware
Emulator for the Oberon RISC machine
ioquake3 port for PSVITA (Currently supporting Quake III: Arena, Quake III: Team Arena, OpenArena, Urban Terror and Q3Rally)
Late 2016 version of MAME (0.174) for libretro. Compatible with MAME 0.174 sets.
3D Engine for libretro GL with additional features (camera/location/etc). Should be compatible from libretro 3D/GLES 2.0 and up.
Late 2010 version of MAME (0.139) for libretro. Compatible with MAME 0.139 romsets.
dhewm3 port to libretro.
Libretro core for Thomson MO/TO emulation
A port of QUASI88, a PC-8800 series emulator by Showzoh Fukunaga, to the libretro API
Port of O2EM to the libretro API, an Odyssey 2 / VideoPac emulator.
Cross-platform, sophisticated frontend for the libretro API. Licensed GPLv3. (Steam-testing)
Standalone fork of Mednafen WonderSwan to libretro, itself a fork of Cygne
Nestopia emulator with libretro interface
mGBA Game Boy Advance Emulator
Port of prboom to libretro - plays Doom, Doom II, Final Doom and other Doom IWAD mods.
The QuickNES core library, originally by Shay Green, heavily modified
A simple Minecraft clone written in C using modern OpenGL (shaders).