Went to PC World to buy speakers and saw stalker the radiation pack with a price tag of £29.99 but asked how much it went through as and it came up as £4.97 new.
Offer only available instore and if you can find a copy (mine was at the PC World at Bangor.
The game is described as
"S.T.A.L.K.E.R.: Shadow of Chernobyl, previously known as S.T.A.L.K.E.R.: Oblivion Lost, is a first-person shooter computer game by Ukrainian developer GSC Game World, published in 2007.
It features an alternate reality theme, where a second nuclear disaster occurs at the Chernobyl Nuclear Power Plant in the near future and causes strange changes in the area around it. The game has a non-linear storyline and features gameplay elements such as trading and two-way communication with NPCs. The game includes elements of role-playing and business simulation games.
The background and some terminology of the game ("The Zone", "Stalker") is borrowed from the popular science fiction book Roadside Picnic by Boris and Arkady Strugatsky and the 1979 film Stalker by Andrei Tarkovsky, which was itself loosely based on the book.
In S.T.A.L.K.E.R., the player assumes the identity of an amnesiac "Stalker", an illegal explorer/artifact scavenger in "The Zone", named 'The Marked One'. "The Zone" is the location of an alternate reality version of the Chernobyl Power Plant after its second (fictitious) explosion, which contaminated the surrounding area with radiation and caused strange otherworldly changes in local fauna, flora and even the laws of physics. "Stalker" in its original (film) context roughly meant "explorer" or "guide", as the stalker's goal was to bring (guide) people into the Zone.
S.T.A.L.K.E.R. stands for "Scavenger, Trespasser, Adventurer, Loner, Killer, Explorer, Robber"