S.T.A.L.K.E.R.: Clear Sky - Prologue Download (2008 Role playing Game)

Set one year before the events in 2007's Shadow of Chernobyl, S.T.A.L.K.E.R.: Clear Sky is a standalone prequel to the acclaimed first-person shooter by Ukrainian developer GSC Game World. Once again players must explore a wasteland populated by hideous monsters and mutants while completing quests on behalf of other characters. New features include a faction wars system that finds four groups battling each other over key territory. You can fight on behalf of a particular faction, or let them fight amongst themselves without your input. If you decide to help a faction, you increase the likelihood of being able to purchase distinct equipment from the faction's traders. The main storyline finds lead protagonist Scar in a mission to dismantle the evil Strelok Faction. Other noteworthy features include enhanced computer AI, the addition of light machine guns, and an option to repair damaged equipment. Fast travel across the open-world environment is also available (for a price).

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