A dystopian and depressing world where most of Earth's land has been flooded, so humanity has resorted to building and living on colossal oil rigs cities. The world of the colossal oil rig megalopolis is set in the near future, where the effects of climate change, resource depletion, and geopolitical conflicts have drastically changed the planet and its societies. The sea levels have risen, the weather has become more extreme, and the natural disasters have become more frequent and devastating.