Aug 23, 2010 08:42 GMT  ·  By

Valve has announced a new pack of downloadable content for Left 4 Dead and Left 4 Dead 2 entitled The Sacrifice. The campaign will detail what happened before The Passing, the last add-on released by the developer for Left 4 Dead 2, detailing Bill's unfortunate death.

The Sacrifice will be available for both versions of the title and will be launched on the PC, the MAC and the Xbox 360.

The small expansions is meant to shed some light regarding the events that transpired before The Passing, where one of the original survivors is dead at the beginning.

While in that mission it was Bill, incidentally my favorite character of both games, it seems that The Sacrifice will allow players to choose who dies at the end of it.

Unfortunately for Bill's fans, his death will still be canon, as Valve intends to release a four part digital comic that will narrate the old soldier's demise.

A recent poll on the official Left 4 Dead blog showed that the majority of both PC and Xbox 360 players thought that Bill was killed either by a tanks or overrun by a mass of infected.

I never really warmed to the survivors of Left 4 Dead 2 and, despite the quality of the campaigns, I eventually returned to the original, to play as Bill.

As an added advantage for Left 4 Dead 2 players, The Sacrifice will add the excellent No Mercy campaign to the title.

The downloadable content pack will be free for Steam users, but Xbox 360 owners will have to pay for it. Microsoft's policy for Xbox Live is that everything add-on must have a price tag, even if the third party publisher does not agree.

Valve is involved in a few very interesting projects lately. Two of them originate from the mod scene, that is the recently released and I must say excellent, Alien Swarm, and the unannounced remake of Defense of the Ancients, the famous Warcraft III conversion.

Portal 2 has finally received a release date, while fans are eagerly expecting any information about the eternally elusive Half Life 2: Episode 3.