Atomic Heart is a first-person shooter video game developed by Mundfish. It takes place in a retro-futuristic world during an alternate version of the 1950s. The Soviet Union is at the height of its power, equipped with advanced robotics and other technologies. Players control a KGB officer set to investigate a manufacturing facility that has gone silent. The game mixes intense combat with exploration, puzzles, and an enigmatic narrative. Atomic Heart features a unique Soviet-era aesthetic and promises a complex story with various humanoid and robotic enemies. It was released for PS5 and other platforms in 2023.