GSC Game World (GSCGW) is a Ukrainian video game developer. Founded in 1995 in Kyiv, Ukraine, it released titles such as Cossacks: European Wars, American Conquest, Alexander, S.T.A.L.K.E.R.: Shadow of Chernobyl, S.T.A.L.K.E.R.: Clear Sky and S.T.A.L.K.E.R.: Call of Pripyat. In 2004, GSC Game World founded a publishing firm, GSC World Publishing.