It's what we've been waiting for! Valve has finally dropped word of how it plans to expand the awesome world of Left 4 Dead in 2009. Here's official confirmation from Valve.
"The first L4D DLC - called the L4D Survival Pack -- is due for release this spring and introduces a new multiplayer game mode entitled, Survival, plus two complete campaigns for Versus Mode," says the firm. "A Critic's Choice Edition of the game will be heading to retail stores this spring and will include access to all the content introduced in the L4D: Survival Pack."
It doesn't, however, specify gameplay details for the Survival mode (although you can have a good guess), or determine whether the two new campaigns for Versus will be the two current single-player levels that aren't selectable, or entirely new creations (we suspect the former).
But there's more if you're a PC gamer: "The first Left 4 Dead release for the Source Software Development Kit (Source SDK) will allow the creation of custom Left 4 Dead campaigns that will be discoverable via L4D's matchmaking system." The SDK update is also due this spring and will be free of charge to all owners of the full PC game.
"Since Half-Life launched in 1998, Valve has made continuous efforts to expand the offering of its products beyond what's included on the day of launch," said big boss Gabe Newell. "With Half-Life and Counter-Strike, and more recently Team Fortress 2, we've learned that we're no longer making stand-alone games but creating entertainment services.
"With Left 4 Dead we're extending that tradition by creating additional gameplay and releasing our internal tools to aspiring developers so they may also create and distribute new Left 4 Dead experiences."
Don't know about you but we can't ******* wait.