Every year a group of young adults practiced how to use army tanks. And every year, somebody missed the target and blew up a barn close by.
So to avoid that yearly blow-up, we created a simulator game where you could practice how to align your tanks and see the result of the line-up.
That means the young adults practicing could see beforehand wether their choices would end up blowing up things not intended to be blown up, or not.
That saved quite a lot of money for the government, before heading out for real practice in the field.