It will require some work on your part, but it's actually very cool.

Apple's Mac OS X operating system gives its users the ability to create their own slideshow screen savers without much effort at all. If you would like to create a Myth III screen saver, follow these steps:

1. Go to Myth Village's Myth III image gallery
2. Download all of the images you would like to include in the screen saver
3. Move the downloaded images to the Pictures folder in your personal folder (~/Pictures)
4. Open your System Preferences and click Screen Saver
5. Select Slide Show and then make any other configurations you'd like (most importantly, activation time)

From now on, whenever your screen saver activates, a slide show of the images will be displayed in full screen glory.

I'm sure this is possible with other operating systems, but I don't have any I can test out at the moment.

Of course, you can use any images you'd like for the screen saver. You could use Halo screenshots or even mix them with Myth III's. It's all up to you.