Screen Savers (403 programs)

Pros: High-quality, close-up images. Lots of customisation options. A number of interesting transition effects.

Cons: Sadly, it won't stop them becoming extinct.

Pros: Changes your desktop paper daily. Allows you to customise pictures.

Cons: Can slow down slower machines.

Pros: Beautiful images. Allows you to interact with it. Includes information about the planet.

Cons: Zoom is not very powerful. Demo mode displays icons on the image.

Pros: Choose the size of your battle. Fights leave damage to your desktop while the screensaver is active. Kid-friendly mode.

Cons: Below-par graphics and animation.