We just had an interesting game on the Public Server (Game 59 when it closes down and is archived), where we tried to play a whole map without any terraforming, and IMO it was a blast. It was hard, tricky and challenging, but it was a blast. The most common problems was ‘relearning’ how to build stations and hubs without using any kind of terraforming to make room for it. Luckily we were realistic about our first try and got it on a very flat map so it wasn’t that big issue as it could have been. But nevertheless it forced us to think an extra time about where to place it and how to use the enviroment around the area to be used for making it even easier because you wanted to make the network just slightly more efficient.
The only turnoff for people was that they had some problems with that it wasn’t as easy as it used to be, failing to like a good challance from time to time. This aren’t a kind of game to be played several times in a row, but one here and then forces you to think outsite the box about how to build diffent things, but it have to be on a relatively flat map if possible to make it that tiny bit easier with fewer lakes than the game we had. they are a pain to bypass unless you ‘cheat’ with canals at waterline paired with liberal use of dynamite, though it could debated weather it is some kind of terraforming or not.