A computer system receive a virtual world data set corresponding to a virtual world as experienced by a user. The computer system adds, to the virtual world data set, virtual world location data sets, with each given virtual world location data set respectively defining virtual world locations, with the virtual world location data sets including a first virtual location data set corresponding to a first virtual location that corresponds to a first real world location in the real world. The computer system adds, to the virtual world data set, a first virtual asset data set defining: (i) a first virtual asset, and (ii) a triggering rule that specifies the first real world location. The computer system determines that the user is in proximity to the first real world location. The computer system, responsive to the determination that the user is in proximity to the first real world location, applies the triggering rule to render the first virtual world asset in the first virtual location.