Settlers2 with the Return to Roots together with RCT2 (OpenRCT) as well as Supreme Commander are still racking up hours of my free time

There are some vehicles that go on iron wheels, on a special kind of iron road that are very efficient. Only bad parts are costly initial investment and difficulties to scale up if the existing network gets overloaded (such as the Swedish rail system who has been over “maximum” capacity for a long time which has put needed maintenance on hold at many places)

Because it’s in the title of the post