The "Infestation" engine providing added realism through fully-destructible environments. Competitive multiplayer game modes have been removed but an infestation game mode features horde style game play has been added. Several additional gameplay types are available that include the never-ending "Extermination Mode" with support for up to 4 players, alongside the mass-destructive "Ruin Mode" in which players have a specific amount of time in which to cause as much damage as possible. Many of the series' recognizable weapons have been updated or revamped, including the trace-firing Magnet Gun, the long-range Singularity Cannon and the melee-style Maul hammer. The primary weapon the Nano-Forge, which can be used to reverse damage inflicted upon various tools and objects and unleash an ultra-powerful "Impulse" beam. All weapon and armor items can be upgraded as players gain experience, offering improvements in aesthetics, capabilities and overall efficiency.