This week it seems both Steam and Direct2Drive are offering PC gamers a chance to download and purchase titles for just one day only. Over on the Steam side the THQ sales event is still ongoing. From now until 1 pm Eastern time today you will be able to buy the recent post apocalypse first person shooter Metro 2033 for just $13.60, a 66 percent savings.

Meanwhile Direct2Drive's daily sale event has a Halloween theme and today they have cut the price of Frictional Games' horror-themed adventure titles in the Penumbra Collection. The game is on sale for $5.95, a 75 percent price cut.