Ziggle 

Ziggle is a simple and intuitive yet infinitely replayable and challenging free PC arcade strategy puzzle game. Use your Mouse, Keyboard, Joypad or PC Dance Mat to keep as many of the randomly spawning Blobs on the world map for as long as you can.
pc game arcade strategy puzzle action free mouse keyboard joypad dance mat

Server+ practice tests. 

Practice tests for CompTIA(r) Server+ conforms to the latest objectives of the Server+ Certification. The package contains 3 tests and most questions carry detailed explanations.
comptia server plus examcram practice tests sk0-001.

7art Rotary Clock ScreenSaver 

7art Rotary Clock will help you to approach the understanding of the temporal river which rotates not only the clock hands but also the clock face. Every turn of the Clock face could help you to see the right way to turn your life for the better!
screen saver desktop image picture amazing screen flash clock watch time clock wind

Planetarium 

See 2500 stars, all 88 constellations, planets and the moonphase from 1600 AD to 9999 AD from any location on earth. Print todays night sky ! Nice visuals, smooth animation, simple controls, good planet data too.
planetarium astronomy software moon planets

Planet Orbits ScreenSaver 

Screensaver that shows a 3D random arbitrary solar system that shows planets with random orbits and textures from real solar system planets and imaginary planets around the sun
screensaver screen saver planet orbit solar sun universe freeware noads

StarStrider screen saver 

The StarStrider screen saver allows you to use FMJ-Software's StarStrider planetarium software as the pinnacle of 'space travel screen savers'. View the planets & moons of our solar system + 118000 stars + spectacular galaxies, cluster & nebulae!
planterium screen saver trek scroll stars planets nebluae galaxies galaxy 3d