S.T.A.L.K.E.R.: Clear Sky

"S.T.A.L.K.E.R.: Clear Sky" is a first-person shooter survival horror game set in an alternate reality. Players take on the role of a mercenary in the Zone, an area containing anomalies and deadly enemies after a second nuclear disaster. The game features open-world exploration, base building, and intense combat, with a focus on survival and tactics. Clear Sky is a prequel to the original game, "S.T.A.L.K.E.R.: Shadow of Chernobyl."