So I'm new to modding and would like to make a mod for me and my friends but also people intersted in my civ I guess. I have been told not to link my code as it comes over as suspicios.. whoops. Thus here is my problem. I want to make my civ get science from farms. 1 science when the game starts and when Astronomy is researched I want farms to put out 2 science but lose 1 food yield. I have been struggling to find a way or even just a modifier to change improvement yields. Below you can find what I have so far but this fails to load. It does build however. If anyone knows what is wrong or even just a way to approach this differently that would be very kind!