The year is 1993, 7 years after the Chernobyl disaster. After surviving an automobile accident in the dead of night, Frank Mosser, an American radiation protection technician, finds himself stranded and injured inside Chernobyl's exclusion zone. Realizing that the only nearby medical equipment suited to treat his wounds would most likely be found in an abandoned hospital. Being familiar with Chernobyl's various sections, he made his way to the hospital, only to realize he's not alone...
As the player your objectives is to find various objects scattered around the map in order to ensure survival when trying to escape the hospital/factory. You need to collect all three items listed in-game and escape without being caught to win the game. There are various mutants roaming around and as the player you need to avoid being seen/noticed or else you will be hunted. Mutants can detect you by either spotting visible light emitted from the flashlight or hearing the player's footsteps within a certain range. You need to avoid being caught by keeping silent, which can be achieved by remaining still and/or hidden by turning off the flashlight and avoiding direct contact whenever encountering a mutant.
https://www.youtube.com/watch?time_continue=55&v=FAO4AygUw6o
https://www.youtube.com/watch?v=Az3Rzu9jeXo&t=48s