Talk:Chaos/@comment-1500935-20150421113812

I'm leaving this here if people find this relevant for the wiki. The game's strategy guide states three major rules behind the chaos meter:
 * If you kill 20% or less of the total number of NPCs so far, the chaos meter will be set at Low Chaos.
 * If you kill between 20 and 50% of the total number of NPCs so far, the chaos meter will be set at High Chaos.
 * The final mission will be loaded in Very High Chaos if you've killed more 50% of the total number of NPCs in the game.

Also the guide differentiate two kind of deeds which can influence the chaos meter: systemic Chaos deeds can be done at any time in any missions (killing NPCs, having their bodies discovered, triggering an alarm, etc...) and scripted Chaos deeds are related to scripted scenes (Campbell poisoning Curnow, thugs keeping Griff captive, etc...). The guide also provides a list of systemic chaos deeds which can raise your chaos score:
 * kill 1 civilian
 * kill 3 City Watch guards, weepers, thugs, assassins or Tallboys
 * trigger 4 alarms
 * allow 4 victim corpses to be discovered

Btw, that's not specified in the guidebook but chaos meter is instantly updated. I take the sewer map of Dishonored (Mission) for example, you can hear the same loudspeaker announcement at the beginning and at the end of the map, and that one can be influenced by your chaos level. If you slaughter the right amount of guards in the prison and on your way through the sewers, you can hear both variants on the same playthrough.