Atomic Heart is an adventure role-playing action game with a closed world, which takes place in an alternative Soviet Union of 1955. Science, equality and fraternity are the main symbols of Freedom in this reality. But what kind of effort does it take to build an ideal society? And what is the price of such a society? Will Major of Intelligence "P-3" have to find out what forces are behind the Utopian dream? And what secrets are hidden in the depths of Facility 3826? The truth will have to be paid in blood.