I haven't been modding C2C for a while now, mostly due to disinterest. As of now, I mostly mod Total War games. But now I have good motivation to go back on my Civology modmod I did years ago. This remake will try to add many buildings that add new fields of study much like the old mod. Commerce: This is proportional to the era it is in, as well as the era its other prereqs are in. This is to balance out the time sink. The type of study affects the outputs and can be and are often combined. Scientific fields add science, Agricultural fields add food, Math, and Geometry fields add production, Philosophy fields add different types of bonuses relating to their study, and Religious fields add happiness. These often have other small effects beyond their outputs, such as increasing the outputs of other buildings, improvements, etc. Yields: Mostly the same as commerce, but will decrease the amount of commerce, proportional to the amount that is in the yield. Yields are generally long term and only apply to certain fields of study, like maths or geometry. I can work on this mod by myself, but if anyone can help me do anything related to this, I will gladly appreciate.