Valve has unveiled a brand new amusement park-themed level for its upcoming Left 4 Dead sequel.

Speaking during an episode of Gametrailers TV, Valve’s Chet Faliszek admitted that the campaign is so new that the firm hasn’t even named it yet.

“You’ve fled Savannah, you hit a traffic jam and you’re here. And this is so new we haven’t named it yet,” he said.

Faliszek also revealed that the follow-up will contain more of a narrative, with the storytelling utilising in-game conversations.

Left 4 Dead 2 is due to be released for the 360 and PC later this year.