Techland, the developer behind last year’s bloody good zombie survival game Dead Island could be working on a mobile installment in the successful franchise. The studio recently filed a trademark for Dead Stop, describing it as “an online game via an application for mobile phones and other electronic apparatus.” There’s a chance this could be another game in the popular series, or it could be related to the mysterious Dead Island: Riptide that was teased at E3. I wouldn’t be surprised if it was an app that supports Riptide in some way, similar to the map app that released alongside Dead Island. With this, Riptide, and the equally as intriguing Dead World trademark that was filed last year, it sounds like we could be getting a lot more Dead Island in the future. In any case, we might learn more soon when Riptide is officially revealed hopefully very soon.