The Atlantean class war frigate is a ship available from shipyards. The layout is quite a bit different from a normal war frigate. Its construction requires a design available only from trading posts. Atlantean class ships have one of the following adjectives when delivered: Aquatic, Ancient, Antediluvian, Archaic, Briny, Deep, Deep-sea, Gilled, Ichthyoid, Neptunian, Oceanic, Seaborn, Subaquatic, Subaqueous, Undersea, Watery.