First patch for the US version of S.T.A.L.K.E.R.: Shadow Of Chernobyl, updates the game from v1.0001 to v1.0003. Saved games from the 1.0001 version will work with 1.0003.
Source First patch for the US version of S.T.A.L.K.E.R.: Shadow Of Chernobyl, updates the game from v1.0001 to v1.0003. Saved games from the 1.0001 version will work with 1.0003.
Source