Therefore, you may be limited to the actual max value depending on which galaxy map you choose.
I'm almost positive that these values are the same for each faction, but I haven't yet tried these numbers for each scenario size or each map. I personally used the following settings in the above order: 4,2,2,1,2,3. artifact level = exploration (already at max when you start a game).home = capital planet (default when you start a game, cannot change).These strings mean different things, and represent upgrade choices that can increase tactical capacity, population, and more. homeplanetupgradelevel: tacticalmodules.homeplanetupgradelevel: civilianmodules.You should see the following string at the top of the text file: Right-click on any file in the 'Galaxy' folder and open it with Notepad.
Within the 'Galaxy' folder, you'll see all sorts of systems from the game, tutorials, and more. Now, please keep in mind, the following is both unverified and could potentially corrupt your game installation or cause other computer problems, so try this at your own risk. In this folder, you'll find another folder called 'Galaxy' which you should click. Head to your game's installation file (which will be something like 'Stardock Games/Sins of a Solar Empire/').