Decay is a map that was released for Blacklight: Retribution in December 2012, as part of the update World's End (0.993). The map is set around what appears to be a set of two residential buildings. It features fairly symmetrical gameplay, with close-quarters combat available inside the buildings, and midrange engagements in the alleyways located in the middle and on the sides of the map. Outside of the map's boundaries are more residential buildings, as well as a canal. The map appears to be set during the late evening.