One of the more original "business" games made, DinoPark Tycoon is both
a strategy and educational game. Build a theme park showing off various
types of dinosaurs.
There are many more features, such as the ability to buy seeds so you
can grow your own plant life for the herbivores. If you want to take a
break from the business part, you can watch your park and see people
walking through the park and other things.
Make sure to get DOSBox so that you can play DOS games in Windows, Mac OS X, and Linux easily!