PPSSPP (PlayStation Portable Simulator Suitable for Playing on PC) is a free and open-source emulator that allows users to play PSP games on various platforms, including Android, iOS, and PC. Developed by Henrik Rydell, PPSSPP has become one of the most popular emulators for playing PSP games on non-native devices. Its high compatibility, speed, and customization options have made it a favorite among gamers.