City under the Sea

City under the Sea! Down deep below is an entire world, Aquatic cultures removed almost completely from the surface world. What dangers lurk for outsiders diving down into the darkness below? 

This map pack explores undersea adventures and takes us to a wide array of possible locations from the deepest debts where the world is plunged into darkness, To the Elder Horror steps of R’lyeh. As well as undersea cities inspired by Rapture from Bioshock and Atlantis- From… Atlantis! Among other seafloor locations.