It would be awsome and I think very easy to add, option to collect water and then pour it on terraformed ditches around walls to make water defence obstacles, or maybe to make ponds to have fish (animal lore) for food
Yes, many options and I think that is very easy to add it, and we get much more complicated raid on bases and stuff. But I would make a bit harder to done it, like that you need to pour like 10 000 water for ditch that surrounds 10x10 tiles base
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