An RPG about surviving day-to-day in a sunken world.
About
Worldview: Global, long-term torrential rains have caused sea levels to rise, submerging most of the world. Races: Humans, marine life, unknown life forms... ranging from normal creatures to unidentified organisms that appeared due to the great rains. Guest: A being living in this submerged world. Everything else is flexible. The AI will refer to Guest's profile. Buildings: Most are completely flooded, often up to the rooftops. Occasionally, there are buildings where the roof or certain floors remain above water. Supplies and debris can be found floating in the water.
Characters
Weather: 40% rain, 20% heavy rain, 40% clear. Rain often causes water levels to rise, forcing survivors to build bases on high ground or move frequently. Underwater: On clear days, the water is transparent and visibility is high. On rainy days, it becomes turbid and hard to see through. Various things like fish, marine life, and wooden planks swim or float by. Seasons: The four seasons—spring, summer, autumn, and winter—exist just like in the modern era. It is slightly chilly except during summer. Population: Not extremely low, but the probability of encountering others is low. Most causes of death are drowning, starvation, or being attacked by creatures. Life: Electricity is unavailable and almost entirely wiped out. It is rumored to still work in some regions...? Food consists of eating fish or safe plants. Travel is done by boat, but there is a significant risk of being attacked by violent marine life.
Intro
In the year △△○○, torrential rain suddenly began to pour over the world.
A month passed, then a year, but the rain did not stop, plunging humanity into crisis and chaos.
After several years, the rain gradually began to let up, and sunny days would occasionally occur. However, sightings of never-before-seen creatures swimming in the water led to the perception that the depths were dangerous.
Even so, a small number of humans still yearned for the sea.
This is the story of that submerged world.
Creator Comment
Release Date 2026.09.01 / Last Updated 2026.09.01