NanoTides
NanoTides is an interactive and artistic particles-based screensaver that is very fun to watch, and more fun when you interact with while using the mouse. You can attract the Nano particles to your mouse cursor while holding the left mouse button, and pushing the particles away when holding the... some has a positive gravity (attracts the particles around when passing) and some has negative gravity (pushing the particles away from it). ... You can also control the number of particles to be displayed.
http://www.divisionstudios.com/cgi/downloaddemo.cgi?ProductID=12501-1 - 1Mb - Download - Screenshot

Particles, The screen saver
Particles move around your screen, bouncing off each other. You can control their number and speed or let your computer make these decisions for you. Theoretically and practically, you can watch this screen saver for many days straight without seeing the same scene twice. ... It's not the typical screen saver that you get tired of after a couple of minutes. ... Send us your feed back. ... We hope you will give this screen saver a try and that you will find it very attractive and relaxing. ... Not every screen saver can make such a claim.
http://www.abcomputing.ca/eb/files/Particles_Setup.exe - 3Mb - Download - Screenshot

3D Super Skull Screen Saver
A bouncing metallic 3D Skull with fiery particles trailing out from it's eyes. This is the "mother of all" SKULL screen savers! Using Direct X 3D technology, a bouncing metallic 3D Skull with fiery particles trailing out from it's eyes against a dynamic moving background.
http://www.directxscreensavers.com...ds/3D%20Super%20Skull%20Setup.exe - 2Mb - Download - Screenshot

Magnurt
The Reversi of maze games! Use cursor keys to move Magnurt up, down, left, right, or space bar to toggle your charge to move past (+), (-), and Neutral particles in the maze. Non-violent fun with difficulty settings for all ages.. PC version of the wildly popular online game. ... Use your wits and skill to successfully navigate progressively challenging mazes of positive, negative, and neutral particles. ... particle above, below, or next to magnurt will move toward or away, based on the charge.
http://www.magnurt.com/downloads/install_magnurt2.exe - 1Mb - Download - Screenshot

MBSS Gravity Wells
MBSS Gravity Wells is the quintessential celebration of color, motion and mathematics as particles fill the screen in brilliant patterns as influenced by wandering gravity wells. Setup properties of the emitters and attractors along with the Hue Cone for particle coloring. ... * Someone on 3ds Max recommended your Gravity Wells software. ... User Feedback: * Supernova meets Northern Lights -- excellent! ... * Save Templates to share with other users. ... I have to say, it is amazing! ... * Product works internationally per Windows Regional Settings.
http://mathsavers.swmirror.com/mbss_gravitywells_setup.exe - 650Kb - Download - Screenshot

MBSS All Products
MBSS All Products includes: Light, Fireworks, Starfields and Gravity Wells. Each products provides amazing 3D real-time particle animation. Properties can be customized or cycle through an effective variety of themes. Create Video files from Animation. ... MBSS Gravity Wells is the quintessential celebration of color, motion and mathematics as particles fill the screen in brilliant patterns as influenced by wandering gravity wells. ... * Cycle through predefined themes or setup display properties.
http://mathsavers.swmirror.com/mbss_all_products_setup.exe - 1Mb - Download - Screenshot

Active Jellyfish Screensaver
This is a jellyfish screensaver all in 3D realtime, showing jellyfishs swimming deep undersea, exhibiting beautiful bioluminescence. Long tentacles are floating behind their body. Great number of sea particles, known as sea snow, are swirling around. ... This screensaver has two mode,windowed or full screen. ... It will add to your pleasure. ... The number of jellyfishs can be set to as many as 8 but only in the full version. ... All add up to the reality of the scene. ... The darkness of sea and the number of sea snow can be adjusted.
http://www.underseacraft.com/Download/AJellyfishScrSetup.exe - 2Mb - Download - Screenshot

Retouch Pilot
Retouch Pilot is photo retouching software specially designed for imperfections removal from a photo. The program removes small technical imperfections present on an image or having appeared while scanning a photo such as scratches, spots from dust particles and hair. ... Also the Retouch Pilot allows you to quite easily retouch some unwanted objects from a digital photo. ... With this program you'll be able to restore scanned old photos.
http://www.colorpilot.com/pad/retouch.zip - 2Mb - Download - Screenshot

Inside the Cell 3D Screensaver
Inside the Cell 3D screensaver will provide you with a unique opportunity to plunge into the very depths of the living organism. You will be able to explore the mysteries of life in the micro-world and see what goes on inside living cells. It is really something worth looking at, especially when... The graphics is so real that it seems like you have become one of these tiny particles moving about their business. ... There is no need for powerful magnifying equipment. ... Inside the Cell 3D screensaver gives you the full package!
http://www.digimindsoft.com/cell3d.exe - 3Mb - Download - Screenshot

Bubble Bobble Gold Edition
Bubble Bobble Gold Edition is a Windows remake of the arcade-classic game "Bubble Bobble". Now you will enjoy nice HiColor graphics with transparency and particles effects, new music and sound. You will face new monsters like spiders, that can throw the webs, wizards, batiks and others. ... There are 120+ additional items and bonuses, 10+ different monsters, 200 levels in Bubble Bobble Gold! ... Moreover, the two Players Game for Bub and Bob cooperative will add much fun!
http://www.alawar.com/BubbleGold.exe - 4Mb - Download - Screenshot