Traditionally, horror games rely on perfectly timed jump scares or terrifying monsters to amp up the scare factor, but that isn't always the case. In fact, some of the most effective horror games build suspense in different ways. Sometimes, the fear of the unknown is infinitely more unsettling than fighting to evade the clutches of a grotesque monster. Many psychological horror games have found innovative methods of conjuring up an unnerving atmosphere without the presence of any physical threat.