I am working on a map of Europe in 1900 AD, and after having made all of the necessary civilizations, I ran into a problem. I chose the play a custom scenario option, but when selecting which civilizations would appear on the Europe map that was included with the game, it only allowed me to choose 18 civilizations. Is there a way to mod the game so that it will let me choose more than 18 civilizations to play on a map?

off topic: I begin to hate this question, somebody should really write a FAQ.

on topic: You need an altered CvGameCoreDll (like this (http://forums.civfanatics.com/downloads.php?do=file&id=13181) for 50 civs).
The file has to go to MyModFolder\Assets.