How do I unlock bone charm slots 4-6?

Question

In Dishonored I only have 3/6 bone charm slots available. How do I unlock the last three slots?

LessPop_MoreFizz · Accepted Answer · 2012-10-12 12:58:12Z

up vote 2 down vote accepted

You can purchase additional slots from Piero in his workshop over at the Hound Pits between missions.

If you preordered the game, you can also get an additional slot by activating your preorder DLC.

answered Oct 12 '12 at 12:58

LessPop_MoreFizz
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	Too bad steam preorder doesn't get it, does it? – ThiefMaster Oct 12 '12 at 13:03
	No, I think Steam is the only retailer without an in-game preorder bonus. (You got TF2 goodies instead.) – LessPop_MoreFizz Oct 12 '12 at 13:03

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