Forge is a proprietary game engine known for powering the Dead Rising series. Developed by an unknown company, this engine has facilitated the creation of action-adventure titles characterized by large, open environments, robust combat systems, and a focus on emergent gameplay. Its capabilities have been demonstrated in titles like Dead Rising 2, Dead Rising 3, and Dead Rising 4, showcasing its ability to handle complex zombie hordes and intricate player interactions within its game worlds.