A friend demanded that I build him a sealab in Starbound. I didn't even own the game, so he bought it for me. I think we both made out pretty well on this deal. It's a little choppy. I'm playing on a server that must not have liked so many mechanisms. I might try shooting this again after DLing the save to my own computer. Edit: Oh, and the submarine (by Darth Biomech) is from the Steam workshop.
It took maybe about three weeks, working on it a little each day. A lot of that time includes mining for tungsten (this took a lot of tungsten) and playing the story missions. Also the time spent finding and looting apex research facilities and human prisons.