Sony and Bad Robot Games announced 4:Loop on December 11, 2025, a sci-fi co-op shooter built around four-player tactical play. The studio describes 4:Loop as a title aimed at “endless replayability” with a focus on teamwork and improvisation. Early information from the reveal highlights squad roles and on-the-fly cooperation as central pillars rather than a strict class system.
Mike Booth, credited as the creator of Left 4 Dead, is leading the project. His involvement is one of the clearest indicators of the game’s co-op pedigree and the emphasis on coordinated team play. Sony and Bad Robot said the game will release on PS5 and PC. There is no firm release date yet, but sign-ups for early playtests are open on the official 4:Loop website.
Gameplay details remain thin for now, and the studio has released a trailer alongside the announcement. Watch the trailer or use the official playtest signup to get hands-on when tests go live.
For context on Sony and PS5 development priorities, see our piece about the PS5 low power mode. 4:Loop looks positioned to lean on cooperative systems and situational teamwork that left its mark on earlier co-op shooters, but more concrete information will arrive as Bad Robot shares build details and playtest windows.
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4:Loop
Developed by Bad Robot Games
