Things You'll Need
Instructions
Turn on your PS3, and let it boot to the XMB (Cross Media Bar).
Log into your PlayStation Network account by entering your registered email address and password.
Enter the PlayStation Store, and find the game you wish to download.
Choose the game you wish to download by selecting "Download." If the game costs money, you will be asked if you want to confirm your purchase; otherwise, the download will begin.
Allow a fair amount of time for the game files to download to your PS3. Because of the heavy traffic on the PlayStation Network, some files take longer than others to download.
Exit out of the "Download Complete" screen, and install the downloaded game.