I was looking at the gamespeed.xml file for Civ VI to see what would need to be modified to change how it works. Basically, I am looking for Epic speed in tech and civics (and time) with Standard production (and everything else). I am a bit confused with the values in the file and what they do. Cost Multiplier - seems simple, but what cost is it affecting? All costs? That could be a problem with getting what I desire. Civic Unlock Max Cost - So, this affects Civics? Civic Unlock Per Turn Drop - See Above... Civic Unlock Min Cost - See Above... Month Increment - OK, this is easy... how many months for each turn. Incidentally, I created a spreadsheet with the years listed alongside. Turns per Increment - Another easy one. In my spreadsheet, I also totaled the turns per speed to get an idea of the length of each speed. Anyway, does anyone have any input on what the civic ones do and the Cost Multiplier. Does anybody know how to accomplish what I mentioned above?