Depth of Extinction is a tactical role-playing game with turn-based combat in a sci-fi setting. The game takes place in a bleak world of a post-apocalyptic future, where humanity is forced to live underwater in order to survive. After the disaster, after 500 years, raiders, pirates and crazy mutants settled in the former habitats of people. You have to assemble a team of mercenaries and go in search of a new home for humanity.