Ever-rising sea levels forced mankind to adapt, and now the majority of the human race live aboard vast floating arkologies; most of these city-states are united as Nations of the Oceanic Alliance (NOA), although there are independent arkologies pursuing their own agendas.
The arkologies are threatened by the Hadal Collective; originally a network of experimental undersea habitats, the scientists of the Collective began to experiment with Dark Life; microorganisms previously undescribed by science, descendants of trees of life unrelated to our own, with entirely different biochemistry. Whether by design or accident, members of the Collective became infected with Dark Life, altering their brain and body chemistries. Mutated to survive underwater, the Hadal Collective began building freakish biomechanical weapons and launched attacks upon the arkologies, forcibly converting prisoners to join their ranks.
The arkologies have fought back with the Deep Knights; undersea mecha that engage the Collective’s biomechanical monstrosities and root out their ocean floor hives. But Dark Life has already begun to infect the arkologies, leading to the appearance of strange cults and horrible mutations. Several cities have fallen to this plague, and fleets of warped pirates roam the oceans, harassing the NOA. The agents of Tidewatch fight to stop any more arkologies succumbing to sects, mutants, and terrors that have crawled out of the sea.
It is likely too late; Dark Life has probably infected everyone. The Deep Knights and Tidewatch can only hold back the darkness in the hopes that a cure can be found, before humanity is replaced with something from the depths.


