@hj
Nice screenshots. Timberborn is such a beautiful game, I love its volumetric-ness.

>and even if you do build floodgate over a leeve (or dam) you are sill limited to the capacity of 3
It's possible to make a more than 3-high reservoir if you're willing to demolish levees to let the water out, which at that scale is cheap to do each drought.

>water source can't really flow "upwards"
It can if it's not at the edge of the map. But as you mentioned, which ways are possible to solve the map depend on the map, and some maps only have sources at the map edges.

I've also not played much Iron Teeth, as I don't like their theming so much. I should give them another try sometime.