SimCity 4: Improve Realism
I still love the SimCity series of games. It’s too bad EA took it over and pretty much ruined the series with SimCity Societies. I still play SimCity 4 and I love it. Especially when you have the Rush Hour expansion pack. The challenge of controlling your traffic flow is difficult, just like with a real city. However, the game is very unrealistic in many ways.
Thankfully, there are mods available still for SimCity 4 that greatly improve the gameplay. My favorite is the NetworkAddon mod. It greatly improves the realism of the game. Now even though the game is 5 years old, the utility I get out of it is renewed.