Atomic Heart is an adventure first-person shooter, events of which unfolds in an alternate universe during the high noon of the Soviet Union.
The principal character of the game is a special agent P-3, who after an unsuccessful landing on enterprise “3826” is trying to figure out what went wrong. The game world consists of huge open-world regions full of lush Soviet nature and less spacious territories of the Facility complexes with its secret underground and above-ground labs, bunkers and robotic logistics systems. Most of the enemies are a variety of machines produced at the Facility. Each robot was originally made to serve the needs of the Soviet industry or to help Soviet citizens in a daily life. The robots are implemented with a combat program that should be activated in case of a war.