I do not know if this is the right forum to ask this question, but how can I create new improvements and add them into the civ game? I want to add new wonders like an internet wonder and a theatre for happiness and the like.

another question, how do you guys balance what you make? do you just test until it seems fair for all sides?

thanks

In the editor you have to make sure you have custom rules enabled. then go Edit/rules/buildings (ithink thats right)

and yeah its pretty much just playtesting till all seems balanced...