The 'trick', as we explain it below, is to use a combination of Wineskin, a computer program that can emulate a Windows environment on Mac OS, and AppStartSaver, a utility that allows you to run any program as your screensaver. This requires a few supporting utilities, but all in all you should be able to have Johnny Castaway up and running within 15 minutes. The good news is that we have found a way around these limitations, allowing Johnny Castaway to run like any other screensaver on Mac OS X.
Since Windows programs aren’t compatible with Mac, and vice versa, Mac users have never been able to enjoy Johnny’s screen antics.
Unfortunately, Johnny Castaway was never made available for the increasingly popular Apple Mac OS family of operating systems.
Thanks to some clever repackaging tricks it can still run on modern (and even 64-bit) versions of Windows, and as a result remains popular today. It is one of the oldest screensavers for the Windows operating system.
The Johnny Castaway screensaver was first released in 1993, in the heyday of Windows 3.1, two years prior to the introduction of Windows 95. How to install Johnny Castaway on Mac OS X
