This game combines elements of survival horror (ammo scavenging, frightening atmosphere with powerful monsters), first-person shooters ("twitch-based" aiming, i.e. The American version was released on February 2, 2010, the European version was released on February 5 (2010) with the game releasing on February 23 (2010) in Australia. S.T.A.L.K.E.R.: Call of Pripyat was first released in the Commonwealth of Independent States, Czech Republic and Germany on October 2, 2009. The graphics engine has been updated to version 1.6 and includes DirectX 11 support, however still has the same basic system requirements used by all S.T.A.L.K.E.R. The game serves as a sequel to S.T.A.L.K.E.R.: Shadow of Chernobyl. Series, a first-person shooter and survival horror video game developed by GSC Game World and published by BitComposer Entertainment. S.T.A.L.K.E.R.: Call of Pripyat is the third installment in the S.T.A.L.K.E.R.