This video is a recording of a video game. The game appears to be set in a dark, cave-like environment with rocky walls and floors. The main character is seen holding a gun and moving around the environment, shooting at enemies that appear in front of them. The character's health bar is visible at the top of the screen, indicating that they are taking damage. The video game's graphics are relatively simple, with a focus on action and gameplay rather than detailed character models or environments.