PCSX ReARMed is part of a long line of emulators that includes PCSX-Reloaded, PCSX-df and, of course, the original PCSX. This particular fork was originally heavily optimized for devices with ARM CPUs, hence the name, but we've added back in quite a few things to make it work well on typical PC hardware, as well.

As a libretro core, this DLC requires the RetroArch interface, where it can be loaded as a core to run games and software that are compatible with the PCSX ReARMed emulator. This core requires a BIOS image (not included) for each region of the software to be placed in RetroArch's "system" directory in order to function properly.