Valve's Steam service has been popularizing the idea of buying a "four pack" game bundle. Games like Left 4 Dead 1 and 2, Shattered Horizon and others have offered such four packs on Steam and they seem to be pretty popular with Steam users. This week the latest game to have a four pack offer on Steam is Serious Sam HD: The First Encounter.

Now you can purchase the recently released graphical remake of Croteam's first person shooter in a four pack for just $59.97. Again that means you are getting four copies of the game for the price of three. Hopefully the upcoming release of Serious Sam HD: The Second Encounter will also offer a "four pack" deal.