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GameFly / GameFly UK has two sales going on.
Borderlands Sale
Borderlands 2 Game of the Year Edition $10 (Steam)
Borderlands 2 $5 (Steam)
Borderlands 2 DLC 67-75% off. (Steam)
Borderlands Game of the Year Edition $7.49 (Steam)
Crusader Kings II Sales (Ends 10/19)
Crusader Kings II $10 (Steam)
Crusader Kings II DLC 75% off. (Steam)