Seeing something that frightens your character will cause you to use oxygen faster, so even how much you consume is constantly in flux. Oxygen can be replenished in various ways, but it's always a concern. Key survival elements really add to the feeling of hopelessness Narcosis has two very important resources that need to be managed - oxygen and flares - and both add to the tension of trying to stay alive in a dangerous environment where the odds are truly stacked against you. The Evil Within 2 is a great example of survival horror done right. This uncertainty can be really nerve wracking. You never know when or where the monsters will be, causing you to always look in every direction. Third, the world is very open, removing some of the predictability found in linear survival horror games. As a result, you might constantly weigh your options, whether to attempt a direct confrontation or go for the riskier stealth kills in an attempt to conserve ammo and health. If you miss a headshot, the monster will probably get to swing at you. If you spend too many bullets in one section, you probably won't have enough for the next. Second, resources are very scarce, so every shot counts. This uncertainty of success slowly creeps into your mind, being more effective than any jump scare. Even when you get used to the controls and combat, you can mess up very easily. First, the disfigured nightmare monsters are very dangerous, so messing up usually equates to your death. Great feeling of suspense As you explore the nightmarish world of The Evil Within 2, you'll almost never feel safe due to a variety of reasons.