Construction began on the Chernobyl Nuclear Power Plant near the city of Pripyat in Soviet Ukraine.
Authorities began allowing controlled, guided tours within parts of the Chernobyl Exclusion Zone, increasing public awareness and interest in the area.
A catastrophic explosion at the Chernobyl Nuclear Power Plant creates the Zone, an area of anomalous and dangerous phenomena.
Following the disaster, the Zone forms around Chernobyl, filled with anomalies, mutants, and valuable artifacts that attract various factions.
The conflict between stalker factions intensifies, leading to territorial disputes and rivalry mainly around profitable artifact zones and control points.
Clear Sky faction, consisting of stalkers seeking to study and understand the Zone, is formed during this period.
Clear Sky initiates research missions deeper into the Zone to uncover the cause and nature of the Zone's anomalies.
Various factions including Bandits, Duty, Freedom, Monolith, and Clear Sky engage in battles for dominance and control over Zone territories.
Scar, the protagonist, operates as a Clear Sky mercenary working to prevent escalating conflicts and unravel the mysteries of the Zone.
An attack targets the Nexus tower disrupting Clear Sky research and causing heavy casualties.
Clear Sky and other factions attempt to gain control over the Brain Scorcher - a device influencing anomalies and Zone conditions.
Scar confronts the fanatical Monolith faction, defending Clear Sky interests and retrieving important artifacts.
Clear Sky attempts to stabilize the Zone by preventing catastrophic events and limiting the expansion of mutant and anomaly threats.
