Message from Valve
The Steam Holiday Sale is on now through Sunday, January 2, 2011. Gamers may save up to 80% on select titles, with daily and week-long savings on featured titles, publisher game packs, and compilations. In addition to the usual savings specials, each day of the sale will feature a special Holiday Bonus on one select title. The twist: Players must qualify for the Holiday Bonus by owning another Steam game. For example, the first Holiday Bonus is Portal - save an extra 10% if you own Half-Life 2. If you already own the title, Steam will automatically detect this and offer you the 10% savings during check out.
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