Talk:Dishonored/@comment-25129975-20200118101348/@comment-16533050-20200118105531

If you've killed enough people (and done enough other things) by the midway mark, it is possible that you've done too much to irrevocably get anything but high Chaos.

I'm not sure of the total numbers of all of the people on every map, but for argument's sake, let's say they're all equal. According to the Chaos article:

"Barring other factors influencing chaos, more than 20% and less than 50% of the human population per mission must be killed for a medium-high chaos rating."

So, to get Low Chaos itself, you must kill less than 20% of the population in TOTAL. If you're already at the mid-way mark and then switch to Low Chaos play, it's already too late as you are probably floating around 50%.

Further, there are a few sidequests, especially in the earlier missions, that can push the Chaos level even higher, probably above the 50% mark which leads to Very High Chaos.