IBM builds their own Sim City-like game called CityOne, only this one plays serious.
CityOne is much like Sim City, only the problems are scarily real, ranging among energy, water, banking, and retail. So, for example, one day you might get hit by a rapid increase in water usage due to population growth--while you're still losing 40% of your water supply to leaky pipes. (This is actually reality, in decrepit megalopolises such as Mumbai and Mexico City.) To fix that problem, you'll have to carefully install a real-time water management system. Or, to encourage growth in small-businesses, you'll have to set up an infrastructure of mobile payments, dynamic invoicing, and micro-lending.