Foreign Sun is an action-adventure game exploring a connected world, where progression depends on interacting with factions, switching roles, and using acquired abilities. Gameplay revolves around navigating a sinking city, searching for alternative routes, and making decisions that influence future events.

Biomass — who would have thought that the human world would turn into a real trap in an instant. A catastrophe happened in this world a powerful flood that wiped out most of humanity from the face of the Earth. All that remains are three towers that rise above the flooded territories and allow people to exist. There were several times less of them, but this did not allow getting rid of the dictatorial rule. As a result, the remnants of people were divided into three factions, which now have strained relations with each other, gradually plunging into war. And among all this, there is a certain object, the so-called Biomass, which gradually pulls its tentacles towards living people with the aim of devouring them.