Bigfoot
Emperor
I thought that the 'informational' page in C3C was a big improvement, but many of the players here have developed even better utilities for assessing game conditions 'on the fly'. With a particular nod towards Dianthus, perhaps Firaxis could bundle Mapstat (or a similar utility) with the game. Also, it would be nice if we could refer to a history of our civ that notes important dates and events, like the beginning and ending date of wars, existing trade agreement and treaty dates, and so on.
