THQ's announced it's signed up the next game from Left 4 Dead co-developer, Turtle Rock Studios.
Ex-Valve studio Turtle Rock is best known for its work on Left 4 Dead, Counter-Strike: Source and (ahem) Counter-Strike: Condition Zero.
The studio was acquired by Valve in 2008, before effectively being closed after the Half-Life house asked its employees to relocate to its main Seattle office. Turtle Rock swiftly reformed as an independent developer last year.
The studio's new and as yet un-named title is scheduled for release in calendar 2013, THQ's said, and it will not be shown at this year's E3 in two weeks.
Turtle Rock joins an impressive list of talent on THQ's growing roster, which also includes Assassin's Creed head Patrice Désilets, Dead or Alive creator Tomonobu Itagaki, Tim Schafer and Pan's Labyrinth director Guillermo Del Toro.
"Our quest to sign the best artists and work with the best talent continues" said Danny Bilson, EVP Core Games, THQ. "Turtle Rock Studios is responsible for one of the most original, critically acclaimed co-operative games of this generation, and we are incredibly excited to be working with them on their next project, which looks set to make a similar impact in the multiplayer space."
"We're thrilled to be working with THQ," said Phil Robb, COO, Turtle Rock Studios. "This project is the most ambitious thing we've ever attempted, and we're inspired by the support THQ has shown to help us realize that vision. We're going to take the first person shooter experience to a whole new level, and we can't wait to show the game for the first time in the months ahead."