A tech tree for building WHILE in water? This is more of a "quality of life" suggestion anyways but sometimes getting out of water can be hard, you basically have to find a natural land ramp to be able to get out (in certain areas). Even a small hop/jump to assist getting out would be helpful. Also suggesting a tech for waterproofing you building tools to more realistically allow this?
I'm thinking that this would be in the works for the future anyways as I can see that underwater base building would be a fun thing to do.