An effective way to ramp up the tension of a horror game is by allowing zombies to move at full speed — or even faster than a normal person. If they end up being too fast, it can slow down the experience and make the core gameplay feel unfair. Thankfully, several horror titles have managed to implement zombies who are fast on their feet, but still fun to fight. The game features a day and night cycle which determines how these zombies act when players encounter them. When the sun is high in the sky, they resemble zombies from classic horror movies, moving at a slow pace.