“With the way that the game works, we offload a significant amount of the calculations to our servers so that the computations are off the local PCs and are moved into the cloud. It wouldn't be possible to make the game offline without a significant amount of engineering work by our team,”
So no Sim City before this needed to have any part of the calculations being done outside the users computer. Personally I didn't feel Sim City 4 was so unrealistic in its simulation that it needed much improvement. Also I don't come to Sim City for 100% realism. Still I must ask, how much better is the simulation? The cities are smaller, calculations are being done on separate servers, so this must be the best most realistic simulation ever, or?