[GS] TIL you don't need Iron Working for Castles

[kotpeter]

Might be useful for someone out there, it's quite unobvious if you ask me

 

[Victoria]

Might be useful for someone out there, it's quite unobvious if you ask me

Just like you do not need construction for Machinery
They did not want to make the tree wider for the sake of 2 techs.

 

[iammaxhailme]

Just make the castles out of bronze, obviously.