An electronic tag game includes a system having magnetic field sensors that are to be worn by a player of the electronic tag game. The magnetic field sensors are configured to detect a change in the local magnetic field. The magnetic field sensors may be in operable communication with one another and are configured to send a signal reporting a change in the local magnetic field to a controller which may be communication with electronic device such as a smart phone or the like. The local magnetic field may be altered by one or more devices configured for creating a change in the local magnetic field. For example, a spherical projectile or hand-held object may be provided and include a magnet that is configured to alter the magnetic field around the magnetic field sensors when a player wearing the magnetic field sensor is struck with the projectile.