The events of the game take place in the 2000s at a certain Soviet scientific station, where experiments were carried out on alien life forms. The main character arrives there as part of an expedition to deal with the consequences of the experiments, but very soon he is left alone. He needs to independently make his way through the contaminated territory, fighting against dangers.
The hero has a scanner, an analyzer and an ultraviolet flashlight — with their help you can explore the infected area. Some things in it will change depending on the tools used. For example, something will only appear in ultraviolet light.