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         Falling Sand Game 
          If you don't know what to do, read the Answers.com article on how to play. The game involves four different particles falling
          from the top of the screen, which all look and move similar to sand. The particles resemble sand, water, salt,
          and oil in color. Along with these four, additional elements can be placed on the screen with the mouse, some
          that are solid and stationary instead of flowing. By mixing the different elements together, many colorful
          designs, complex structures, and systems can be created.  |