Atlantis

These are long domes that unite different cities. Oxygen inside them is also supplied by gardens, so spacesuits are not needed when moving through them either. Special vehicles, more like trains, quickly transport people from one city to another along these roads

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The city in the beginning is called Somnia. The center for the production of various materials for the soil of roads in cities

Each country has its own research stations that study the activity in their territory. The researchers at these stations study titans, new species of fish, and the Hearts of the Sea. Thanks to their research, it has become possible to build cities and gardens.

The military forces became meaningless, so all military equipment was converted into mechanics for a special squad called the Atlantis Project. This squad was responsible for eliminating the Titans, the Hearts of the Seas, and rescuing those who got into trouble during excursions and missions.

The huge amount of water forced people to completely switch to converting the movement of water flows into electricity. The Hearts of the Sea helped with this, as their power was enough to power a single city. This was a step towards controlling the Hearts of the Sea. The Poseidon cannon technology allows you to destroy the Hearts of the Sea to get rid of them if they appear in the wrong place. Various underwater technologies such as submarines and gliders have also been developed. All-terrain vehicles have been created to navigate on roads without damaging the ground.

These are underwater entities, most often they are an enlarged and more predatory version of ordinary marine life. They appeared after the appearance of the first Hearts of the Sea. In addition to just larger versions of fish and others, titans are also commonly referred to as new species of fish that appeared at the same time.

Sea Heart - Formations that represent places of special activity. It is not yet known how they appear. These places attract titans or simply create strong currents, sometimes leading to underwater tornadoes or excessive flow Ocean Heart - The formation at the bottom of the Mariana Trench is believed to be the cause of the flood on Earth. It is impossible to reach it, but analysis has shown that it is ten times larger than the Sea Hearts, and the currents around it are extremely powerful. No Titans have been observed near it, which suggests the strength of the currents.

These are long roads between cities that are shaped like half-domes. Oxygen is supplied through the cities. Most often, the domes are made of transparent but reinforced material in case a Sea Heart forms near the road (to quickly detect and eliminate it)

All the current cities are under transparent domes made of solid material. Each house is designed to stand firmly on the unstable ground of the bottom. The roads in the city are made of a special material that allows people to walk without any problems. Oxygen is supplied to the cities through gardens (domes outside the city where trees and other plants, even vegetables, grow), so people in the cities can walk without spacesuits and not experience any problems. There is also no water inside the cities, so the domes are strong so that water cannot get inside.

The role-playing game dates back to the beginning of the 24th century, when the Earth was completely flooded. All people have long been accustomed to life underwater,Some people can't even imagine life before the flood

The project is about building cities underwater. It started in the middle of the 23rd century and was finally completed 100 years later. The project also allowed people to start developing technologies for living underwater.

In the 23rd century, humanity noticed that the water level was rising for no apparent reason. Further research revealed that this could lead to the flooding of the entire Earth within the next 50 years. An international project called "Atlantis" was launched, bringing together most of the developed countries.