I recently picked up my new laptop, which of course runs Office 2013 and Windows 8.
When you try to install the Master Data Services add-in for SQL 2012 you may run into a warning that says you need Office 2010.

There is an easy fix: just install the Master Data Services add-in for SQL 2012 SP1 (get it here: http://www.microsoft.com/en-us/download/details.aspx?id=35581 . Be sure to pick 32 / 64 bit to match your Office version.

Oh and of course you will have to get the other pre-req as well: Visual Studio 2010 Tools for Office runtime (find it here: http://www.microsoft.com/en-my/download/details.aspx?id=35594).

See http://support.microsoft.com/kb/2774422 for more information.