you could either put it in a new mod directory in galciv2/twilight/mods or in the galciv2/twilight/data/tech trees folder

have fun with your new tech tree

to edit ship modules (including weapons, engines etc.), you must edit the GC2types.xml

if you want to increase the amount made from trade routes, make techs that increase "TradeRoutesAbility"

-Dave

if you want each weapon to be a separate file, you must make an xml file with this code:

save this file in the [your mod]\Data\ShipComponents folder. Give it the name of the weapon you're making and then write up the xml for the weapon in this file the same way you would in the GC2Types.xml

do you know if i can make an "all-inclusive" armor tech?

i mean, where it says:

<Class>A</Class>

can i do something like this:

<Defense Name="something">
<Class>A</Class>
<Class>S</Class>
<Class>PD</Class>
        <Size>15</Size>
        <SizeMod>10</SizeMod>
        <Cost>200</Cost>
        <Absorption>100</Absorption>

??