A wagering game system and its operations are described herein. In some embodiments, the operations can include determining that a mobile device, associated with a player, is brought to a casino. The mobile device runs an application that may have been downloaded and installed on the mobile device prior to the mobile device being brought to the casino. The operations can further include generating an offer to perform an activity within the casino. The award is attainable via performance of the activity. The operations can include providing information about the offer to the mobile device. The mobile device presents the offer via the application. The application can specify the award and the activity to perform. The operations can further include detecting performance of the activity via player input via one or more wagering game machines within the casino, and providing the award in response to the performance of the activity.