Valve has announced that, starting today they are holding a massive sale on until July the 4th.

The deals include discounts on the back catalogues of Ubisoft, and Atari, discounts on complete packs of games from Valve, and the games.

As well as the lasting deals, they will be offering a variety of special deals every day with games up to 90 percent off.

The first day's special deals include 80 percent off the superb indie Trine and 75 percent off Dirt 2 and horror co-op Killing Floor.

By Ewan Aiton