Crittersim

Crittersim is a simulation program that runs a section of a virtual world. There are plants and animals and a semblance of natural selection going on. In it you can control various characteristics such as the rate of plant seeding, apply herbicide and pesticide, and observe how various species compete for limited resources. Using an advanced editing mode you can even create your own species or modify existing ones.

What is new in this release:

• H Simulation continues while menus and modal dialogs are displayed.
• Enhanced crash reporting.

Requirements:

Mac OS X 10.4 or higher