Batman Arkham City expansion Harley Quinn's Revenge is no longer downloadable from the Games for Windows Live Store.
The GFWL store actually let me download and play it without ever purchasing it. It was just marked as "bought" for some reason (although it did mark my Robin and Nightwing bundles as no longer owned so it's not completely positive). Point is, I'm not surprised they're having to do some upkeep.
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