Hi, it's a new part of my project Rapture : Hephaestus.
I will make the interiors too.

"Hephaestus, home of the Hephaestus Power Facility, is the main power production source for Rapture and is located at the southern end of the city. Designed by Andrew Ryan, it harnesses the heat from geothermal vents on the ocean floor.

Hephaestus was one of the initial facilities built in Rapture; without it, Rapture could not have been powered. Hephaestus also contains the private office of Andrew Ryan. In the post-construction era, many of the specialists who built Rapture worked in the various workshops or became maintenance employees."