Hypernova
Warlord
Yes, at least really bad disasters should be really rare. It would be interesting to have fault lines running along the edges of hexes like rivers. You would only know their exact location later in the game and they would be like the negative equivalent of discovering your city sits on oil or something. They would also let you prepare for earthquakes by making them more selective.Well I agree that there should be some natural disasters as feature of terrain and random events, also. It adds flavour. But they certainly shouldn't have a large effect on the outcome or direction of the game. That should be based upon skill.