The ghost hunters travel with a spirit box, a thermal imaging camera, a thermometer, and a tri-pod camera. If they search around abandoned locations, the ghost activity is higher. Ghost activity is high or low depending on the time of day. More than one ghost is very rare. More than one ghost is more common if you're exploring an abandoned family house. There are different ghost behaviors. Some attack, some watch, and some wander around. Ghosts can only talk through the spirit box.