Crack achievement investigators are back in action, and they've sleuthed out the 50 Achievement/1000 Gamerscore set for Batman: Arkham City. Included are two achievements speaking to a New Game Plus mode, which will allow a second playthrough with your fully upgraded Batman. Pore over the others, and then see Kirk's impressions from PAX and mine from Comic-Con to see if any of them concern details we haven't seen. (Hint: There are, and not just in the obvious story-chapter achievements.)

Batman: Arkham City Achievements []

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