Abstract: The subject matter described herein includes methods, systems, and computer readable media for predictively downloading background assets with file-not-present tolerance in a virtual world application. According to one aspect for high reliability downloading of background assets using a manifest in a virtual world application, the method includes compiling a manifest of assets potentially needed for execution by a first instance of a virtual world application (VWA), wherein each of the assets is associated with a priority. Using the manifest and while executing the VWA, assets listed in the manifest are downloaded based on the priorities indicated in the manifest. The VWA is executed for displaying a virtual world by loading at least a subset of the assets listed in the manifest.

Abstract: The subject matter described herein includes methods, systems, and computer program products for determining an integrity measure of a game user using dynamic performance events. According to one aspect, the method includes providing a plurality of predetermined data events in a gaming interface for sending to a client device and inserting, during sending of the gaming interface to the client device, at least one dynamically generated data event into the predetermined data events for determining an integrity measure of a game user. After sending gaming interface to a client device, input response to the at least one dynamically generated data event is received. Based on the input response to the at least one dynamically generated data event, a game user integrity measure is determined.