Think.
If you're going for a clean, no kill play through be careful where you place any unconscious bodies you're at fault for. Don't put them where rats may devour them, near bodies of water, or on sloping rooftops where they may make to their death while you're seeing to Granny Rags half an hour later.
More tricks, tips and cheats for this game are right here - Dishonored cheats
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