Updated with some bugfixes

New version: https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2233176318

Design wise, very satisfying and I love it.

Unfortunately the submarine is broken, the back compartment is not functional without cutting through the wall to the right of the pump which isn't very effective. The reason this is the only way to access that area is the ladder right under the power generator is filled with water, and upon touching the hatch you will get stuck and die to pressure. I'd recommend removing the ladder under the power generator all together, and making a door to the right of the pump (it shouldn't be a problem with the three pumps to the right)