Things You'll Need
Instructions
How to Play PSX Games on a Computer
Download and install a PSX emulator onto your computer. There are different options to find one that will work with your computer. "EPSXe" is a popular version you can find at this URL:
http://www.epsxe.com/download.php
Download the read only memory, ROM, file for the game you want to play.
Open up your emulator and configure it to work with your joystick or gamepad.
Load up the ROM file and start playing.