If you like mutants, horror, FPS, RPG in one game then it's pretty fun. Good story too, especially in the first game (Shadow of Chernobyl). Also it's a russian game some parts is in russian but not much. One more thing... You need mods to maximize your experience with the game.
also game is hard. very hard. a single mutant dog can kill you in 3 seconds. i talking about call of pripyat. idk about others