Abstract: Embodiments of the present invention disclose a method, a computer program product, and a system for informing collectors the locations of houses participating in a collecting event and safely transferring prizes to the collectors. Embodiments of the present invention can be used to receive registration corresponding to each player of a plurality of players, determine a set of active players and a set of inactive players among the plurality of players, determine a transfer request of a prize between a collector and an active player among the set of active players, and execute a transfer based on the determined transfer request.