The 1.1 version of Real Fly for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The following version: 1.1 is the most frequently downloaded one by the program users. This free Mac app was originally produced by Opera widgets. This application's bundle is identified as com.operasoftware.Widget.RealFly. We recommend checking the downloaded files with any free antivirus. The program is included in System Tools.
From the developer:
Have a fly as a screensaver or play a joke on your friends! The widget will show a fly on a transparent background which will glide around the screen in a random path anywhere within a 950x600 area. It just looks like a fly crawling all over your screen.
You may want to check out more Mac applications, such as A Fly!, Real Mac Genius RSS Feed or iScan Fly, which might be related to Real Fly.
Simulation
Puzzle