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0451
There are multiple safes to unlock throughout the game but the combination for one is very special. It’s 0451, which has cropped up throughout the history of gaming. First appearing in System Shock, it’s been in all of the Deus Ex games and Dishonored.
It was actually the key code used for Looking Glass Studios’ Cambridge office. After the studio, it’s employees would scatter to a number of different studios, planting the coveted 0451 wherever they could until it became an industry tradition.
