High. In many Undersea Sci Fi stories science is central to the setting. Science is employed to describe the biology of deep-sea creatures, science is employed to create habits for humans, science is employed to create the technology for underwater transportation.

Variable. Many Undersea Sci Fi stories are adventure stories and so they do not spend much time on ideas and social commentary. However, there are some authors who use the alien-like setting to explore not only social ideas, but psychological ideas.

Variable. If the Undersea Sci Fi story follows in the Pulp tradition the characterization will be low, having mostly stock characters. However, there are also more complex stories that take place under the sea and often explore the psychology of its characters in an alien environment and under unusual and extreme circumstances.

High. Adventure stories are plot driven and the undersea adventures found in this sub-genre are no exception.

Moderate. Undersea Sci Fi stories are adventure stories and there will be some high action scenes that can turn violent. This violence may be among the crew of a troubled submarine or it may be fighting off a giant squid.