S.T.A.L.K.E.R.: Shadow of Chernobyl

In 1986 the world's most horrific nuclear disaster took place in Chernobyl. After subsequent unexplained explosions in 2006, a military zone is set up preventing access to this area. Stories of huge anomalous energy disturbances and strange sightings within the Zone are rife. Only the foolhardy or insane venture in. After having been found unconscious in the zone, you have become a S.T.A.L.K.E.R., a mercenary paid by scientists and other undisclosed groups, searching for strange artifacts, information and technologies while striving to regain your memory. However, you're not alone: rival S.T.A.L.K.E.R.s, military guards, mutants and deadly anomalous creatures stand in your way as you begin to unravel the mystery of the Zone and your own identity.