>>9943719I also believed it to be set on Earth, the time being either the future or something closer to the present but starring groups of people with the latest technology. Never thought of the motivation to go so deep underwater, but maybe it was less of a crisis and more about exploring the depths like we do with outer space
Currently I'm doing something similar bur involves future archeology. The backstory is a bit silly, taking place in the same world (or at least one very similar to) as some 90s satirical mockumentary. In it Archeologists in 2499 investigate Argentina, a country now famous for its mysterious disappearance (one theory being it that it sunk due to how heavy bullshit was getting). There's also elements of (gaijin) otaku culture including imageboards and the popularity of SNK in South America.
Basically the factions are different imageboard users living under the sea after having enough of the normalfag surface. The ones that spent too much time at their sreen turned their eyes red and became the Stingrays They search and fight over KoF statues that were celebrated works of art, commissioned by an aristocrat of the Menem dynasty(he worked as an assistant to the secretary of a city council member that just so happened to be his uncle) to the finest hobby artisans in Brazil. They were thought lost along the rest of Argentina until now.