The phrase denotes the retrieval of a modified application file for a specific mobile game involving undead adversaries and firearm combat, playable without an internet connection. This modified file purportedly grants the user infinite in-game currency. It typically refers to obtaining this game and its enhancements through unofficial channels.
The appeal of such downloads lies primarily in the perceived advantages: bypassing typical gameplay progression by acquiring unlimited resources, thus enabling immediate access to superior weapons, equipment, and upgrades. Historically, such modifications have stemmed from a desire to circumvent in-app purchase models or accelerated advancement within games.