RetroArch is an open-source project that makes use of a powerful development interface called Libretro. Libretro is an interface that allows you to make cross-platform applications that can use rich features such as OpenGL, cross-platform camera support, location support, and more in the future.
It comes with its own built-in collection of applications to provide you with a 'one-stop-shop' for entertainment.
Libretro and RetroArch are perfectly suited for creating games, emulators and multimedia programs.

This version is meant for devices that have Android 8.0 or higher installed. As a result, it supports over double the amount of cores (127) as the regular version (50). This is a special 64bit version of RetroArch, for those with 64bit capable devices!