If you are one of the people who has not played a Half-Life game, now is your chance to pick them all up for exceedingly cheap. Steam's weekend deal is all about Half-Life, with every game with Half-Life in the title be 60% off. This includes spin-offs such as Half-Life: Opposing Force, but not Team Fortress or Counter-Strike. This also includes the Half-Life packs, which have all of the Half-Life games. For example, the Half-Life Complete pack is down from $50 to $17.

Along with the Half-Life games, the Valve Complete Pack, which includes every game made by Valve, has been reduced by 10% to $90. It's a great deal as well, especially if you do not already have the Orange Box. As always, there are also a few new releases that are reduced in price as well, but this is all for the weekend deal.