Horror games are a genre of video games designed to scare and unsettle players through atmosphere, story, and gameplay mechanics. They often involve elements such as monsters, ghosts, or supernatural phenomena, creating a sense of dread and tension as players navigate through dark environments. These games can vary widely in style, from action-packed experiences to slower-paced, narrative-driven adventures. Popular titles like Resident Evil and Silent Hill have defined the genre, offering immersive worlds where players must confront their fears and solve puzzles to survive.