This is sounding great, but I think that some thought should be put to this because it is somewhat bordering existing moodles such as anxiety, depression and a little with anger and boredom. Anxiety for example, if persistant should add to insanity and so should depression and as depression sometimes is a sign of boredom and anger could be the result of insanity, there's quite a bundle of moodles on screen... Not to throw down the idea, just something to think about . I also don't fully agree that positive sanity (or maybe should be some kind of happiness... propably already somewhat thought of idea...?) would be unnecessary, but it should be from excessive amounts of happy stuff similar to what GSC suggested: Also things like not seeing/killing much zombies (unless you're a gunnut, but then again you're pretty much insane anyway...) etc. and all of these should also ofcourse contribute against insanity. Coz' I think it shouldn't be impossible to have a brief period of happiness even if a second later your brain is being munched away. At least you died happy. About panicking: would you people think it's too much if a sudden attack on you could have the possibility to put you in some sort of shock for a second or a half so that you'd be slower in your actions such as reloading or running away. Sort of like a "I really don't know what I should do now... that zombies coming right at me but my legs won't move..." and why not have the extreme panic altogether affect reloading time and small things like that as you'd propably be shaking as you put those shells in the shotgun. Aaand the strong willed etc. would affect this too.