problem olden?

"In the aftermath of the Chernobyl disaster, the Soviet Union decides to use the Exclusion Zone, often referred to in-game as "The Zone", for special research into the human mind. Results include enhanced ESP, psychic weapons, and the eventual formation of a hive mind known as the C-Consciousness.

After the collapse of the Soviet Union, the self-aware C-Consciousness takes control of the Zone and autonomously continues its research. It attempts several times to bring about world peace using global mind control. However, these attempts result in the unintentional twisting of the physical terrain around Chernobyl as well as the mutation of resident life forms.

In an attempt to hide its existence from the outside world, the C-Consciousness erects a Monolith in the center of the Zone which it uses to brainwash any Stalkers lucky enough to reach it into serving the C-Consciousness. In a further attempt to insulate itself, it constructs a network of psy-fields, one known as the "Brain Scorcher", which effectively destroys the mind of anyone who gets too close. As reports of valuable "artifacts" disseminate from explorers who venture into the zone, whispered rumors of a Wish Granter housed in the Sarcophagus of the Chernobyl NPP begin to spread.

A group of four Stalkers, named Strelok, Ghost, Fang, and Doctor, travel to the center of the Zone in an effort to find out what is there. They attempted to decode peculiar door inside the Sarcophagus, but their attempts failed after encountering high numbers of the fanatical Monolith faction. They are then forced to retreat. Strelok is knocked unconscious during an "emission" (or "blowout") and loses his memory. The others are able to escape the Zone, although Fang later dies of his wounds, and Ghost is killed by overwhelming psychic emissions and a mutant known as a Controller.

The unconscious Strelok is discovered by the C-Consciousness, who, unaware of his identity, mistakenly assigns him the task of killing the Stalker known as Strelok and his allies. On the way out of the Zone, the truck carrying the still unconscious Strelok is destroyed, and he is discovered by another passing Stalker.

Later in the game, Strelok is reunited with Doctor who helps him piece together his past, prompting Strelok to return to the Chernobyl NPP and the Monolith. When Strelok eventually confronts the C-Consciousness, he is faced with a choice of merging with it and attempting to repair the Zone and bring about world peace, or trying to stop the C-Consciousness from continuing its experiments. If the player chooses not to join the C-Consciousness, he is forced to battle heavily armed members of the Monolith faction. When they are defeated, he destroys the bodies that make up the C-Consciousness. Strelok is then seen standing in a grassy field, the Zone seemingly gone. "