It is a slideshow with multiple images of well-known computer games of all times. The images include images of games like Mortal Combat. Circle of Doom, Devil May Cry, Julia Chang, among others. The images appear randomly and they occupy the whole screen. Sadly, they last only a few seconds on the screen, and you cannot customize this option. Unfortunately, there are neither sounds nor music, and you can not add your own. The images also show a caption with the developer's name and website, which is really ugly and cannot be erased.
From the Settings menu, you can customize the duration of the transition effects shown between images, and you can also hide the mouse cursor. If you want, you can add a digital clock in any of the screen corners as well as the slide number. The slideshow can be controlled using predefined keyboard keys specified in this menu, which is great.
All in all, if you are looking for a screensaver with images of your favorite games to decorate your screen with, Free Famous Games Screensaver may work for you.