I assumed that this was dead and buried, and by all rights it should be, but here goes: There is already a panic mechanic in game, this merely seeks to add to it. It seems some people want to imagine that they are stone cold killers, whose minds are impervious to the strain of being in a zombie apocalypse, and THEN finding themselves washed up on a beach in godfuckknowswhere Russia, running through the woods at night being shot at by their fellow survivors. You may not be afraid of the dark when you're sitting at your darkened computer area, but I can guarantee that would change if you were actually in the middle of a zombie infested town. That darkness would be pretty scary. I, for one, would find a situation like this quite harrowing, even if I had survived previous zombie attacks. I guess I'm honest enough with myself to know that even though I like 'hardcore' video games, I am not a steely eyed killer, and my fragile psyche would break instantly upon seeing a zombie. The effects I have in mind are similar to what already exists in game. For example, when you are low on blood you lose the ability to see color. When you are in pain, your hands shake. My idea is that when sanity gets low, your vision distorts. This could be represented in game by applying a fish-eye lens effect, or causing your vision to swim (which already occurs when looking at distant trees, at least on my rig). The sound of your heart beating could become amplified, making it difficult to hear your surroundings. Really, there's a lot of effects that could be used, you just have to be creative. I understand that to some this is "telling them how to feel", but that is really not the intent. It is intended to make the experience of looting the zombie infested towns more difficult, and to feel as scary to the player as it would to a real person in that situation. That's all I got. Fire away.