New rules for a more nuanced fear track with seven levels, as well as for sanity and madness, allow your group to play around with the psychological consequences of the terrible events that are all too common in a horror game. The fear track has a split between lesser fear (which can cause increasing weakness but doesn't make you lose control of your character) and greater fear (where your character is so frightened that they can't help but act on it). Sanity is a sort of mental pool of hit points, and losing too much at once exposes you to a new madness (of increasing severity if your current sanity is below half your maximum). Of course, even if you lose sanity a little at a time, losing all your sanity causes you to completely lose your grip on reality.