We clearly need a "Map Editor" and a "Scenario Editor".Optionally: make a scenario editor where you as the maker of a scenario can make 'disasters' and 'events' that can be sort of a story for those who want to play such. ?
I dont know about the "disasters" things (like SimCity ? Hmmm, why not ... idk) but the "Map and Scenario Editor" is a must have !!!