PCSX2 is a popular open-source emulator that allows users to play games from the PlayStation 2 console on their computers. It replicates the hardware of the PS2, enabling gamers to enjoy their favorite titles with enhanced graphics and performance. The emulator supports a wide range of games and offers various features, such as save states and customizable controls. Users can also apply graphical enhancements, making older games look better on modern displays. PCSX2 is compatible with Windows, macOS, and Linux, making it accessible to a broad audience of gamers.