This video is a screen recording of a first-person shooter game. The player is holding a gun and is moving through a series of rooms and corridors. The rooms are dimly lit, and the walls are made of concrete. The player shoots at several zombies that appear in the rooms and corridors. The zombies are dressed in various clothing, and they fall to the ground after being shot. The player continues to move through the rooms, shooting at any zombies that appear.