Well, I only work with hardcoded limits, not quite interested in new gameplay mechanics etc. So my suggestion list is here https://www.twcenter.net/forums/show...hardcoded-list .
Progress;
Religions (released)
Regions (heavily experimental)
Cultures (almost done)
Hidden Resources (done)
Trade Resources (Trade resources are hardcoded in the exe if you want to make new ones, you need to add one by one with new names example;
Code:
push esi
push offset aWool ; "wool"
call sub_D46100
add esp, 8
test al, al
jz short loc_D565A7
mov eax, 17h
pop esi
retn
)