Mike Booth, the former lead game designer of Left 4 Dead, has announced a new four-player co-op project.

On August 31 (local time), Booth shared on the Left 4 Dead Reddit that he is crafting a new four-player co-op shooter built upon 'the core elements that made Left 4 Dead special.' The project is being developed at Bad Robot Games, a subsidiary of the film and television production company Bad Robot. Bad Robot is also the production company behind the film adaptation of the game Portal.

This new title focuses on the teamwork and tension that defined Booth’s previous work on Left 4 Dead. Booth noted, "The project is currently in the early stages of development, and we are conducting playtests with a limited number of gamers," adding, "If any players are interested in joining the development of this upcoming title, we would love for you to participate in the testing."

Left 4 Dead is a zombie apocalypse-themed four-player co-op shooter co-developed by Turtle Rock Studios and Valve. The primary objective is to push through swarms of zombies and reach the safe house, requiring players to actively utilize their items and weapons. The game was highly regarded for its diverse maps, varied arsenal, and consistent post-launch support.