GSC Game World’s Stalker 2: Heart of Chornobyl is the fourth main game in the S.T.A.L.K.E.R. series and the first new game in the series in 15 years. This next chapter in the Stalker saga takes players on an adventure through the Chornobyl Exclusion Zone. The Zone is filled with violent mutants, deadly anomalies, and factions that are constantly at war with each other for power, territory, and resources.