The 1.0 version of Predray 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 most popular version of the software is 1.0. Predray for Mac is included in Games.
We recommend checking the downloaded files with any free antivirus. Predray_macosx.zip is the default file name to indicate this application's installer. This program's bundle is identified as Predray10. The actual developer of this free Mac application is Yonas Kolb.
From the developer:
Predray is a predator prey simulation, but during developement evolved into something more of a sandbox world. It contains various interactive simulations of wind, water, rain, grass, fire, trees, numerous particles and flocking AI. It is also capable of running genetic algorithms to determine the best animal genes to stabalise the zebra and lion populations for a given environment.
You may want to check out more software for Mac, such as Pony World Deluxe demo, Democracy2 or ParadiseBeach1, which might be related to Predray.