That one game that positively pushes my boundaries is the Cities Skylines; many factors come into play, especially when you're managing an entire city. It will exercise your cognitive skills.
I actually took inspiration from nature and designed a trunk + branches kind of traffic system, where most of the traffic would go through a large series of "trunk" roads and rail, and the rest of the traffic would be distributed like branches.
I thought it would get me into rigid patterns like SimCity did, but it was actually very organic.
I thought it would get me into rigid patterns like SimCity did, but it was actually very organic.