I made copies of some of the original big datafiles into my custom Mod directory, for rebalancing the regular stuff, and added also a few smaller files with fully new tech. Now the problem is that I for example get all planetary improvements twice...
I tried renaming the original files, but now I just get an unexpected error when I try to run GC2.
I skimmed through the brief modding guide but didn't notice the place where it says such details about handling the files. How do I fix this?
Where can I find the GC2 IRC channel with lots of fellow modders (and devs?) hanging around?