#8073
Breakable
Keymaster

MTd2 wrote: They could just easily heat their crops on green houses.

I think first you need to have:
a)Crops
b)Greenhouses
Failing that you could have:
a)Sources to buy crops from and money
b)Materials to build greenhouses
Failing that you could have
a) Artillery pointed at closest neighbors
Yes, that could totally work, but why do you need crops and greenhouses for?